E28 Tachometer Not Working

I took the bezel apart and inspected the tach plug wire as well as the wires soldered to the circuit board. Calibrating it can be used as tachometer. I had a friend tell me that it might be the conection to the crank because thats where he said the sensor was for the rpm guage. More than half the time when I start the tractor, the tachometer will indicate 0 RPMs. If the touch screen gets unresponsive, responds incorrectly or lags on your Android phone/tablet, how do you fix it? This post is about the quick way to solve touch screen not working on Samsung problem. MG MGB Technical - Revcounter and petrol gauge not working When I bought the gt 6 months ago the rev counter did ot work and now the petrol gauge is not working. Gauges, indicators, speedometer, tachometer all quit working I was riding along and noticed my gauges all went dead, all of my indicating lights on the dash and turn indicators are dead. com because we carry genuine OEM Suzuki parts with which to service and restore a GS500F. I used a graphite powder to lubricate the inside of the cable. The tach does not work with the engine running: Turn the ignition on. I tried cleaning all of the connections with contact cleaner and the speed control sensor to no avail. On that model S-60 the tach gets its signal from the ECM. My speedometer needle stuck at 68mph and tach is stuck about 2700rpm. The speedometer was not working when we test drove the boat. If you have a signal all they way to the tach then the tach itself is most likely legs up. net file storage service. Veteran Member. A typical bounce would be to 6,000 rpms while the engine was running steady at 3,000. Re-installed and we're all fixed. The amount of movement is fairly random and very annoying. Autometer Tach On My Ls Swap Not Working I need someone who has been through this to tell me how they got it to work. The only way to tell is to refurbish and test. I hope Samsung Developers can fix this as soon as possible. Excessively high or insufficient voltage will put the tach into self protect mode. Turned it off came back out an hour later started the car and the tach is not working. However the tach does work in mine now. If so, how does that work? How does the data recorded from whatever it is that records the data get displayed on the dash? Electrical or mechanical signal? How is the tachometer needle calibrated to move the right amount and point to the correct number (rather than just spin round in a circle or not move at all)?. I have a Sun Pro in my Ford, think it had 5 wires to hook up. A tachometer is an instrument which is used to measure the revolution speed of any rotating object such as a shaft or motor. Please be aware this is an experimental project, I didn't use it connected on any vehicle but it should work fine after calibration. a good used one from any post- '86 E28 will fit your M535 (apart from the 525e as this has a 5k rev counter where the others go to 7k) but ones from scrap yards are unlikely to work. A stock Fiero V6 Tach will read a 3800 correctly AS LONG AS it is in good working order. i looked under for the speedo sensor and noticed all the wires are cut on it!. Then it works fine again. You may reuse the original ends from your old tach filter or butt splice them in using the original ends of your original tach filter. It's a rather shithouse way of doing things in that the sensor comes out of the body of the car, gets folded around one of the heatsinks of the diff and then connects up. If sending unit tests okay, check for damaged ground wire or poor connection. It seems to be a pretty solid tractor but the digital MPH, tach display does not work properly. RPM Tach does not work, 5300. my 1988 bmw 528e has a problem as far as the tachometer,fuel gauge,and engine temperature gauge not working. I purchased a rebuilt cluster, installed it, and the tachometer still did not work. Because the E28 M5 was assembled largely by hand at the BMW Motorsport facility, European customers could not only choose from the entire range of normal E28 options but also request more specialized features like hand-stitched complete leather interiors and/or integrated electronics such as phones, faxes, and minibars. Brock- there is a connector bullet type but it is all fine, no breaks or tear I also moved it while the bike is running and tach did not budge. The wiring to the tachometer is good. The tach didnt work and I assumed it was a fuse. if you need to send your tach to us for repair, you can remove the male and female banana plugs from your tach leads and jumper them together. If the alternator doesn't work thent he tack wont workand probably the hour meter I'm guessing. Mine would work some days and not on other days. The only problem I am still having is that my reverse indiglo gauges will go out for a period of time, and then just as suddenly come back on. See install guide here: CLICK ME. A common rust spot is the front of the footwells. I am restoring a 72 Chevy Truck, I am having trouble hooking up my stock tachometer to a new HEI distributor. Unfortunately our tach filter is designed to work with AutoMeter gauges. The tachometer has a switch on the back for 3 and 4 cylinder I have insured it is in the 3 cylinder position. Any reason why its not working? Everything else on the dash works. BMW E28 Five Series - Problems & Buyer's Guide. It finally just quit altogether, is this just a sending unit, fuse or some oth. May not work on all engines. Regardless of the accuracy, I had no Tachometer to start with and now it should be reading fairly close to accurate. First download the free Instrument Cluster Removal guide by clicking here: Download Removal Guide Then place your order for repair by clicking this link: Place Order After placing your order you'll receive a free printable shipping label on the next page. Buying the tach. If sending unit tests okay, check for damaged ground wire or poor connection. When the ignition is off the needle rest far left. A common rust spot is the front of the footwells. Turn off the engine and prepare to remove the tachometer if the reading is non-existent or clearly not accurate. i went on intune to make the gauges move and they did not. If its just your tach, then I've got an extra one I'd ship to you for cheap. It was formerly known as the E28 Brakes FAQ, regarding the 1982-88 5-series. Chrome trim has been shadow-lined. 2\" Skyjacker Lift, 1\" BL/ML, 32\" Pro Comp M/Ts on 15X8 Cragar series. I think that what sends the signal to it is the crankcase rpm sensor. hook the red to the positive battery and black to the negative battery. mercury outboard tachometer and speedometer not working? my boat has a 1995 mercury 90HP outboard. After converting to a 10 speed manual and a whole lot of other problems the truck is ready to run but the odometer and speedometer are not working. Click here for detailed information and to view our entire inventory of Used Trucks. Add to Cart. Thoughts on how to. tach was working and just stopped working Click here to post comments. However the tach does work in mine now. Pity the first pilot who rolled inverted and sailed blithely along, only to hear the engine cough and die of fuel starvation when the gas settled in the top of the tank, or. Tach doesn't work. There was never an impact on engine performance. My ABS light popped on as well. For clarity, the following are defined generally:. Refer to chart on the next page. I thought it was the speed sensor but that wouldn't explain why the mileage and trip meter don't work now. The problem is the overlay is rubbing on the needle, not allowing it to move around. I did mess around inside of the distrubutor and and remove the black magnetic trigger or whatever it was and put it back where it seemed to be. Strip the end of the trigger wire for the tachometer, and place a female-to-female connector to it. Figure out which one is malfunctioning with this guide. the speedometer isn't working whatso ever on my gauge cluster, the RPM's and everything else work fine, the sensors on my diff looked fine to me, i took a look at em. The coil had a teminal marked tach but when I hooked up the wire from the HEI to the wire that went to the terminal the tach still did not work. For added value look out for a GS500F model with the fairing. They do not go out AFTER the car is started, typically I can tell when I start the car if they will work or not. Tachometer not working. In any case. Just supply your own tach, serial cord and power, and using our software you'll be able to have the same quality modification provided by our own tachometer mod. You should see anywhere from 1. The tach didnt work and I assumed it was a fuse. i will submit this circuit as my own design. The solenoid stem, armature and spool are not serviceable according to. Is there a There are several web pages with excellent instructions and pictures on The on board computer (OBC) in an E30 uses two regular light bulbs wired in in and normally require you to buy a. If no reading or improper reading is obtained at either test position, replace sending unit. It bothers me somewhat, if its just a sensor then ill replace it but if its the cluster it doesnt bother me that bad!. If they are working but your dashboard doesn’t report that they are working, and if the fuses are all okay, then there is a design flaw going on. the lights and flashers work when the key is off but not when the key is on. then scratch it on the negative battery and. Schedule a service window, shut the system down, and repair or replace the part(s) as needed. Speaking of distributors, it does not matter if you have and old point ignition or HEI, the tachometer will still work. I have a 2007 john deere 5525, it all of the sudden shows 00 on the speedometer, the tach doesn't move, as does the fuel gauge and temp. That unified we can move mountains. What is the proper adjustment to make the tach output the same as a 6 cylinder motor?. Tachometer not working Welcome to TheMalibuCrew! As a guest, you are welcome to poke around and view the majority of the content that we have to offer, but in order to post, search, contact members, and get full use out of the website you will need to Register for an Account. Apparently, pre-1979 tach's are not compatible with HEI ignitions without a resistor installed. If the tach reads Zero, the problem is in the distributor or the wire coming from the distributor. Canadian Poncho Homepage-> Canadian Poncho-> Canadian Pontiac Cars/Parts Wanted-> 63 tach. if not what should i check 4 Answers. If an inductive pickup IS NOT provided, use OPTION #1 - Direct Hookup with GREEN Wireunder TACHOMETER CONNECTIONSwhen installing the tachometer. As I have covered in another article the main benefit to the 1. Three wires go to it (yellow is the signal, grey is the power and black is the ground). It seems to work when I turn the wheel to the right. When is warm, its better, but miss full power. Hi guys, thanks for taking the time to read my problem. The second ignition module wire is typically black and it connects directly to coil (-). I had an extra set of guages and a board from my old truck, so I was able to fix it without any trouble or expense. Some people have claimed to have better idle with the 1. I replaced the board with a spare one that I had, but those batteries only lasted. The paint job is done with spray cans it took about 20 can to complete the paint job. Tach needle does not move: The problem can be that the 12Volt or ground connections are missing to the tach. Speedometer, tachometer, gauge, cable & sender repair, restoration and re-manufacture from the early 1900's through to current models are the cornerstone of our business. All the gauges with the exception of the odometer and tach seem to work. The speedometer has always worked until this year and the tachometer has never worked. All it does, by the end of the day, is to count fire signal pulses, and then it is not a big difference if the bike is a Sportster, Dyna or Softail. we do not use after market tachometer guts and throw them into your mustang tachometer as some due. RPM Tach does not work, 5300. We replaced our Corvette's distributor tachometer drive gear with the factory style cross shaft and bronze coupler - obtained from Zip Corvette Parts. Also while I'm at it the Tachometer is inconsistant. I honestly have no clue what it could be. Ie it is unrectified AC. The tachometer does not work properly. Rpm gauge not working,all other gauges and needles work fine. Pin 6 is my power (12v) Pins 7,8 are for the tach sensor that is mounted on the block and takes the. Click here for detailed information and to view our entire inventory of Used Trucks. It is normal to show random value even if no motor function. If speedois working, it may show speed up to 40mphwhen the vehicle is standing still. The electric tachometer didn't work either except when the kickstand was down and it was in gear (kick stand kill switch didn't work either) I checked for loose connections and found none. I've got an Auto Meter Auto Gage aftermarket tach. Some people have claimed to have better idle with the 1. The bike has never seen rain or moisture. The wiring to the tachometer is good. Hino W06CTI 310HP Diesel. The E28 chosen was a two owner 528i with 62,000 genuine miles that had been off the road for some time in dry storage and was in stunning condition, with all of the goodies you want with an 80's-era BMW; electric windows, sun roof, central locking, ABS and cruise control all adorn this shark-nose beauty. After trying another tachometer head, no luck. I have a 2007 john deere 5525, it all of the sudden shows 00 on the speedometer, the tach doesn't move, as does the fuel gauge and temp. just got done putting it in and nothing it still does not work. They are not going anywhere and sit by the wiper motor. I have read various threads about the instrument cluster and assumed that was the issue initially. Went for a short ride today and noticed that the tach was not working. then hook the white to the positive, if the light comes on. Toucscreen unresponsive and does not work after updated it to Oreo. I would just go over each wire and maybe put the ground elsewhere, run a jumper if you have to. However, ignition lights come one and the tachometer is working. Numbers show up, but they are obviously not correct Also, on the other side of the dash the coolant guage is in the red at all times. Now it's on 0 and not moving. Other days, they work fine, but on days where it's just really cold, they are a bit weird. The part looks like a fuel pump with vacuum lines and a couple of wires. If it works erratically, or is way off, then the filter would most likely fix it. Recent new starter, rear tires weathered, fronts almost new. Since you have a 1500, you should have the 4L60E trans and it has only 1 speed sensor and if it failed you would likely have only first gear, the computer controls shifting and if it doesn't see anything from the speed sensor it won't shift out of first. Tacho not working correrctly. Click here for detailed information and to view our entire inventory of Used Trucks. BMW VDO E30 Odometer Gear Repair Set If you own an E30, chances are, you have a broken odometer. I tried to take a ride with the boat and the engine works well. 2008 Chevrolet Silverado 1500 featuring frontal, all windows, Black rubberized-vinyl. When I ground the smaller terminal in trhe temp sensor, the high temp light comes on. This device indicates the revolutions per minute (RPM) performed by the object. Find MSD Magnetic Pickup Tach Adapters 8920. I have a 2003 Kioti DK 45. Porsche Metric Dial. Bought the tractor used and tachometer has never worked. The 93-94 YJ does not have this technology for that type of communication so i dont think that those gauges will work. I am restoring a 72 Chevy Truck, I am having trouble hooking up my stock tachometer to a new HEI distributor. (Those marked as RVC will work. The tach and speedo work most of the time, but sometimes work sporadically. If the tach is not working, check the voltage coiming out of the tach output on the MSD. Just searched on internet, bought a set from e-bay for 30 pounds, got it color coded for 40 pounds and 2 hours job. Please that are plugged into tach on cluster. If the touch screen gets unresponsive, responds incorrectly or lags on your Android phone/tablet, how do you fix it? This post is about the quick way to solve touch screen not working on Samsung problem. Thats better, dunno why the first link does not work. Tachometer does not work with my LS Engine Swap Application. Fuel pressure is ok. Visitors and Members can book online at Royal Dornoch via our online booking facility or contact us at [email protected] Extech strobe-tach photo tachometer models are easy to use for visual inspections as well. The new CIP panel is designed to replace the factory instrument panel that is standard on motor homes with Fleetwood panels. You’ll Cry Over Classic Porsche Prices After Seeing Emory Motorsports’ 1959 ½ Speedster A “spartan” aesthetic plus an Emory-Rothsport Outlaw-4 equals we’re too poor. Also, one quibble -- I haven't seen any SCUT that lacks a tachometer, and would not want to be without one. once you hear the pop move the needle clockwise untill it pops again then gently. Speedometer, temp, gas and tachometer all worked. I drove around for about 20 minutes and it just suddenly stopped. Rpm gauge not working at all | Find answers to your 2002 Ford Explorer Sport Trac question from certified mechanics and auto experts. need help installing tachelectronic ignition The Tach is finally working like a charm. Very solid straight truck loaded with options. the problem you more than likely have is the stepper motor inside the instrument cluster itself and eventually all six gauges will quit working there are services offered on ebay (not advertising them just saying) that will replace them and all bulbs in the cluster for something like $150 i just did this myself everything is soldered in and screwed my circuit board up now am having to buy a. The door pin trigger was not programmed to polarity of the door pin switch. This article on how to wire an electronic tachometer doesn’t have anything to do with Project X other than that ’57 is the granddaddy to Super Chevy’s Chevelle. Every time I connect the Tach. The tach does not work with the engine running: Turn the ignition on. This device indicates the revolutions per minute (RPM) performed by the object. I think the tach I have is original, and if not, it is a replacement because it looks factory. but yeah i was wanting to see, i was told my best bet would be that my speedometer in my gauge is messed badly and that i need a new gauge cluster, is this the problem?. Re-installed and we're all fixed. 2003 to 2008 is a 3 year difference. The OEM subs to a counter clockwise tachometer which will not function. Using the. Please note - Not all SI boards can be successfully repaired, especially those with screw or battery acid damage. On my Ford 3000 which will be way different. The tach and speedo work most of the time, but sometimes work sporadically. i have been told that i might need a Tach adaptor? any help would. Tachometer intermittently quits working and. BMW brakes have helped me stay alive. BMW E28 535i 535is INSTRUMENT PANEL / CLUSTER Tachometer Speedo Temp OEM. The tachometer is analog. The tachometer in my 95 stopped working. I purchased a rebuilt cluster, installed it, and the tachometer still did not work. It is normal to show random value even if no motor function. The circuit that resulted was not doing any battery charging, but it made nice tach pulses. Hi! A strange thing happened to my instrument cluster yesterday. The tach and speedo work most of the time, but sometimes work sporadically. Bought the tractor used and tachometer has never worked. The electric tachometer didn't work either except when the kickstand was down and it was in gear (kick stand kill switch didn't work either) I checked for loose connections and found none. I wanted a speedometer with a tach. The body work looks really nice as its just had a machine polish so the paint looks and feels like glass. Below is a list of Models that we commonly repair. The bike was sitting on the garage for three days only when i tried to start it up yesterday the tacho did not turn on and there was no display on the speedo, all other warning lights are working and had checked all fuses and they are good. Tachometer is not working correctly. Everything appears to be fine. The 93-94 YJ does not have this technology for that type of communication so i dont think that those gauges will work. We are always listing new tractor parts online for many different tachometer models, and parts not listed in the catalog yet may still be available by requesting a tractor part quote from us directly. Tachometer does not work. Upon reading the instructions it appears that my Autogage is a voltage triggered tach (tach trigger wire to neg. The tach and speedo work most of the time, but sometimes work sporadically. PO ran wire from plus side of coil to ignition switch. After some time (as little as a minute to as long as an hour) it will start working. *This website and the how to repairs, are strictly for suggested ways to fix your equipment. 7 auto - non working tach & speedo C/K Car Forums. It was formerly known as the E28 Brakes FAQ, regarding the 1982-88 5-series. There maybe a recall on these so search for recalls and you may get free ones. Not available with (ZW9) pickup box delete. Does anyone know how I can check this. Don't lose heart! The repair can be done by you. -Speedo would start to not respond at startup and would kick on after a few seconds of driving - Tach and speedo stopped working completely. 3L with gas,tach, odometer and temp gauges not working. ) A decent instrument restoration service can do the conversion for you. 2014 crew diesel Razor. I did a search for this information and could not find it using keywords Tachomter and Tach. Applies to: E23, E24, E28, E30, E32, E34 with speed sensor units mounted in the differential housing cover. Disconnect the boat's battery from the boat wiring if the boat runs with one, using a crescent wrench to remove power wires from the battery terminals. Re: Mercruiser 5. either way its not hard to test. When I flip the ignition switch ON ( gets power to tach) the tach moves to the 0 RPM, normally with power off it rests below the 0 RPM. The Mopar factory tachs will not work with modern electronic ignition systems. the problem you more than likely have is the stepper motor inside the instrument cluster itself and eventually all six gauges will quit working there are services offered on ebay (not advertising them just saying) that will replace them and all bulbs in the cluster for something like $150 i just did this myself everything is soldered in and screwed my circuit board up now am having to buy a. I just hooked mine up a few weeks ago let me see if I still have the install sheet laying around. 's BMW E28 Gauge Panel No -- the right-most gauge would hit the radio surround and the gauge mounting brackets would not work. MSD calls it a Faston connector. My "rear antilock" light stays on. These are exactly same as on our Henna E30 car and on Missblue. pretty solid truck. Applies to: E23, E24, E28, E30, E32, E34 with speed sensor units mounted in the differential housing cover. We haven't tested it with any other gauges so I'd be very hesitant to recommend it for use with your OEM tach. I know how to test the lights using a 9volt battery and a double a if not a triple a battery to reset the AMP gauge nut sure how to test a tach. Which means the problem lies between the ECM and the tach head. It should connect to the back side of the gauge. 1) Speedometer – The speed sensor may be faulty. If you have a 2002 or newer truck, the "No TACH Movement during Cranking" troubleshooting trick probably wont work for you. then scratch it on the negative battery and. When your RPM is less than Average Cruise RPM (when taxiing, decent, etc), Tach Time will count slower than HOBBS Time. could the jdm cluster i got be a 89-90 one? it redlines at 9k if that helps. converter module yellow red black. Run enough wire to reach the MSD ignition control box mounted on the firewall in the engine compartment. I replaced the tach because there was a signal coming through the engine wire leading to the tach. The 04 TJ tachometer is an input to the PCM via PCI bus communications. A ABS tach will illuminate the ABS light all the time when equipped on a Non ABS bike. my 1988 bmw 528e has a problem as far as the tachometer,fuel gauge,and engine temperature gauge not working. Sometimes, when I start up the car when its cold, the tachometer gauge will work, with the gauge pointing above 1100RPM. It came with the power bob-tach option, however it is not working. Please feel free to contact us for more. The wiring to the tachometer is good. Speedometer not working 1 Answer. Now with the new battery, the tach stopping working. My speedometer needle stuck at 68mph and tach is stuck about 2700rpm. This Tachometer has been specifically designed for small engines with a magneto ignition such as the GX390 or 420-460cc Clones, our 625s and V-T DOES NOT WORK ON. If its just your tach, then I've got an extra one I'd ship to you for cheap. Our JDS1982 is the only new tachometer in the world specifically for the 2010! See…. The signal to the tacho comes from the W terminal via wire 10 in the diagram It is a direct connection to one of the stator coils. Disconnect the boat’s battery from the boat wiring if the boat runs with one, using a crescent wrench to remove power wires from the battery terminals. BMW VDO E30 Odometer Gear Repair Set If you own an E30, chances are, you have a broken odometer. Recently the tach & hour meter have stopped working. Do not post links to those for your ad. If an inductive pickup IS NOT provided, use OPTION #1 - Direct Hookup with GREEN Wireunder TACHOMETER CONNECTIONSwhen installing the tachometer. The tach and speedo work most of the time, but sometimes work sporadically. If a/c does not work then the tach signal is not getting to Klima or there is another problem with a/c. my 1988 bmw 528e has a problem as far as the tachometer,fuel gauge,and engine temperature gauge not working. Went and plugged into two other known to work units in, but they didn't work neither. Excessively high or insufficient voltage will put the tach into self protect mode. Fits BMW E23 81-85 from date of manufacture 9/81 thru 12/85, E24 78-85 up to 12/85 and E28 82-86 from date of manufacture 9/82-Part number # 62 11 1 394 273, 62 11 1 394 270 1/86. 1962-1974 Corvette Tachometer Drive Cross Gear Replacement. If you do get a new speedometer, you will have to get someone to change the mileage for you. Locate all wiring junctions and prepare the tachometer for installation by arranging the wiring to make it easier to run the wires to their connecting junctions inside the passenger compartment and in the engine bay. A tachometer is an instrument which is used to measure the revolution speed of any rotating object such as a shaft or motor. Tachometer does not work. Applies to: E23, E24, E28, E30, E32, E34 with speed sensor units mounted in the differential housing cover. BTW, @MikeinNH may not understand us wanting to keep our tachs working. Buy Here Pay Here Program Available on Late Model Low Mileage Cars. It's not a little different; it's a lot different. I havnt really looked into the problem yet, and was just curious to see if one of you guys would know why its not working. Your computer wire harness has a tachometer signal wire (in most cases it is a white wire), so why won’t it work?. I love these fix your gauges threads! My 2001 speedometer wasn't working due to the paddle wheel pickup mounted on the ride plate was defective. Well I am moving on my way to getting my scooter just the way I want it ,but the tach does not work. This is a CIC display with 4 pin connector, not the later 6 pin NBT system. I tried to take a ride with the boat and the engine works well. I was replacing a burned out hi beam indicator light and all of of a sudden I realized that my neutral light, blinkers, and brake light didn't work at all. Eventually the tach will start working normally. I drive it for about 5 minutes like this but still no tach. These get all the splashback from the wheels and it shows. mercedes forum at Car Dealer Forums; I have a 420 SEL that has developed a non-operative tachometer reading. Earlier this week my wife the primary driver of the vehicle noted that the speedometer, tach, and gas guage had stopped working. Eventually the tach will start working normally. Not available with (ZW9) pickup box delete. Speedometer, tachometer, gauge, cable & sender repair, restoration and re-manufacture from the early 1900's through to current models are the cornerstone of our business. If sending unit tests okay, check for damaged ground wire or poor connection. Since the original cluster didn't have a tach, there is no ground being presented at the cluster for a tach. The result was a working tachometer. converter module yellow red black. The OEM subs to a counter clockwise tachometer which will not function. This unique Combination Speedometer/Analog Tachometer allows you to monitor engine speed, fixed segment fuel level and gear indication, without adding additional handlebar-mounted gauges. The hex wrench might chew up the screw a little bit, but it will still work repeatedly. It doe NOT work on iPad, iPod touch or any iOS device without flashlight. Not sure if that is an important symptom or not, but it certainly seems like a mechanical malfunction that causes indicated rpm to be doubled, exceeding the ability of the tach to register the rpm correctly. And pin 6 on the harness to the tach output on the RB's ECU, the graph goes up and down, but not left and right. Had a football Sun tach in my 56 Olds way back then. One that has me stumped right now is the tachometer not working. Keep the ignition unit and combo relay(for the fuel pump and injectors) from the E28 wiring. Ford changed how the TACH gets its signal to a computer controller and so it does not move AT ALL until the truck is fully running. Your computer wire harness has a tachometer signal wire (in most cases it is a white wire), so why won’t it work?. Not available with (ZW9) pickup box delete. This SUV rides slow but it’s definitely not slow. Now the Tach does not work. 2008 Chevrolet Silverado 1500 featuring frontal, all windows, Black rubberized-vinyl. my 1988 bmw 528e has a problem as far as the tachometer,fuel gauge,and engine temperature gauge not working. If you have a/c then the tach signal is getting through the EGR electronics and to Klima. The problem is the overlay is rubbing on the needle, not allowing it to move around. Bought the tractor used and tachometer has never worked. I tried cleaning all of the connections with contact cleaner and the speed control sensor to no avail. So that covered my main goals of the weekend, and I still had time to work on it, so it was time to start diagnosing the misfire. I examined the tach fuse and it was shot so I replaced it. The distributor should not make any difference as to whether the tach reads or not, although some after-market electronic triggers (used in place of points) can make it read high. A while back it started just moving around.