Is the tachometer on my car still working?

Got them all repaired and viola, tachometer is now working. Would you happen to know what that grey wire goes to? It was the only other wire in really bad shape.

How do you connect a tachometer to a boat?

Connect the black tachometer wire to the black ground wire. Connect the yellow wire to your lighting wiring. Connect the remaining wire (usually green) from the tach to the wiring for the engine per your boat’s wiring scheme. Label each wire with masking tape and a permanent marker.

Where do you hook up the tachometer on a Chevy 350?

Hook up the green wire to the negative side of the ignition coil, which is on the left side. Close the hood, start the engine and test drive the vehicle make sure the tachometer is working. Dealing with electricity can be dangerous. If your tachometer is not wired properly, it can cause melting and burning.

Where does the tachometer come from on a GMC Sierra?

The signal for the tachometer comes from the PCM on the white wire, Pin A2 at the cluster. Any aftermarket remote start by chance? Look for spliced wires at the PCM connectors and at the cluster plug. I did dig out my bluetooth scan tool, and I am seeing rpm displayed there.

Got them all repaired and viola, tachometer is now working. Would you happen to know what that grey wire goes to? It was the only other wire in really bad shape.

Are there any problems with the 2005 Silverado tachometer?

From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com as a daily part of their ownership experience. 2005 Silverado Tachometer And Speedometer Problems. The speedometer and tachometer are showing erradic values while driving.

Where does the signal for the tachometer come from?

Is the factory tach not working on a 1980 Z28?

Discussion in ‘ Troubleshooting & Diagnosis ‘ started by granitecowboy, Dec 16, 2011 . Hi…new here. Just bought a 1980 Z28. Love the car but the tach doesnt work. Is this a common problem on these cars? The guy I bought it from said he couldnt figure it out so he just put an aftermarket tach in it.

What to do if your 80z Tach is not working?

If it has the long orange needle and there is no redline markings below 4500 rpm… It the correct tach for your 80Z. (Lower redline means it’s a V6 tach. Shorter red needle means it’s pre-79) The proper replacement should look like this.

Why is my factory tach not working properly?

The most common problem for tachs is that they get disconnected from the distributor. Connect the factory tach and inspect the wire through the tach filter to the firewall. If you don’t find a problem there, your problem lies in the dash or the tach itself.

Why does my tachometer not read 500 rpm?

There are 2 small IC chips that the solder joints fail on. The entire job from shutting the truck off till I started it again was 45 minutes. Before I made the repair my tack would flip 360 degrees and get stuck on the stop, it would work temporarily but read 2-500 rpm low, it would freeze at certain rpms for lengths of time.

Is the tach on my Dodge Ram working?

I have not done any real testing, other than that i kniw my motor and trans are top shape, and that sometimes the tach works perfectly, and sometimes not at all, sometimes it winds all the way around to the stopper under the 0.

What should I do about my 2006 Dodge Ram tachometer?

My 2006 tach was erratic and then finally it spun around 360 deg. and stayed under the stop peg. Cure; 1.) With vehicle off, push the trip reset button and hold. 2.) without starting, turn the key on. 3.) keep your finger on the trip reset button and watch the magic happen. Your welcome.

Why are my solder points on my tach not working?

After heat/cool cycles and bumps/vibrations lead free solder develop hair line “cracks” in the solder joints. This guy took his dash cluster out and “re flowed” his solder points on the tach and fixed the problem. I’m confident I could re flow the solder points.

How long does it take to fix a tachometer on a 1979 Camaro?

fix it in 5 minutes with less than $5 for the single part you need! click here forSpecial edition of this page for 70’s and 80’s GM truck tachs When I bought my 1979 camaro the tachometer was reading about two and a half times what it should have.

What kind of circuit board does a tachometer use?

there are a few nuts under the circuit “board” that require you to carefully lift it up to get at them. Now you’ve got your tach to where you can work on it! The tachometer system uses a National Semiconductor LM181 with a GM part number on it.

Why is the tachometer on my car not working?

Sometimes, corroded wire connections and breakage may be the reason for the tachometer not working. A classic symptom of a loose wire connection is erratic display of readings.

How can I tell if my tachometer is broken?

Check Wire Connections: If you look at the parts inside the tachometer, you will be able to see whether the parts are damaged, melted, or burnt. If this is the case it is likely that the wiring is blown. This will result in display problems and eventually tachometer failure.

What to do if your tachometer is out of sync?

Recalibrate: If the calibration is out of sync, reset the tachometer. The owner’s manual will have instructions on this. Check the Wire Connections: If the wiring is the problem, check the manual for the wiring diagram. Compare your tachometer and reconnect and repair any loose/ damaged wires.