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Tach not working - 1998 Chevrolet Blazer

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1 Answer

Tach quit working an speedometer goes crazy what would cause


vss has probably gone bad. vehicle speed sensor ( vss)

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My 1981 corvette tach quite working how do I get working again?


1981 Corvette has an electical tachometer that is driven by impulses from the distributor. First, check for blown fuses, next make sure the tach wire is plugged into the distributor. Next bypass silver tach filter or capacitor located by manifold to see if the tach moves at all. If these steps do not reveal a change in tach operation, then the most obvious next step is to remove the tachometer and get a new board for the tachometer. Unscrew and remove cluster lens and then unscrew tach bezel, and gently pull out the tach noting position of insulators. I believe these boards are available still at local autoparts locations. Replace board, note position of insulators and reinstall tach, bezel and lens. Old corvette are cool and are pretty easy to work on! Should be fixed, enjoy!

Feb 15, 2015 | 1981 Chevrolet Corvette

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Wher is tach connector to gearbox located?


THE tach on this car is electronic.. it does not connect to the gearbox.. If it is not shifting correctly .. check the speed sensor..

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Tach works intermittenly


There is no tach sending unit ,the cluster itself is the trouble with the tach

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93 dakota tach not working


The negative part of the ignition coil is the tach,the tach of the dash is non op

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I have an 89camaro irocz 28 with 5.0, with a rebuilt tranny about 3 yes ago. While driving on overdrive at about 40-50 mph it will shift into od geer then back to 3rd then od again what could be causing...


Yes it can be what it is doing is called hunting, As for your RPM tach it has nothing to do with it, Now your transmission is a 4L60 and YES it does need a tach signal or the RPM signal it doesnt matter if your Tach gauge doest work but it need the tach signal for the transmission to work. And NO there is NO VSS it needs TACH. or it will hunt for a shift that is why its doing this.Youll need to restor the TACH to the transmission so it can shift properly, Now youll either have a 4pin connection,1 wire or youll have a 4 pin 2 wire connection or youll have a 4 pin 3 wire connection This transmission need tach signal so bear with me i am going to some how draw it pretend your looking at the switch. connection

l-------------------------------L
I A B I
I C D I Okay the C is TACH that has to work

Apr 23, 2011 | 1989 Chevrolet Camaro

1 Answer

Have a 2001 camry 4 cyl...tach stopped working..is there a relay or does tach need to be replaced


the tach runs off the ignition module so if the engine runs good the tach is bad
no relay is involved with a tachometer

Mar 12, 2010 | 1994 Toyota Camry

2 Answers

I have a 1991 camaro and my tach wont work .it tays stuck at around 4500 rpm and goes u from there.is it grounded out maybe?


I had the same problem with the tach on my 92 Camaro. Tried the resistor fix but it didnt work. Finally found a tach board at the junkyard that worked for about a year.
I found a new replacement tach board. Only had it for about a week but it seemed to fix the problem! Hurray!!
NEW 1990 92 Chevy Camaro V8 Tachometer Circuit Board

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Feb 14, 2010 | 1991 Chevrolet Camaro

1 Answer

Fuse for tach


THERE IS A 10 AMP IGNITION 1 FUSE UNDER THE HOOD IN THE PDC.THERE IS NOT A FUSE FOR THE TACH.IF THAT FUSE WAS BLOW NONE OF THE GAUGES WOULD WORK.U COULD USE A SCAN TOOL AND CK FOR TROULE CODES.

Apr 21, 2009 | 2000 Chevrolet Silverado 1500

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1988 Ferrari 328 gts tachometer quit working.


The Tach is a tricky thing and sometimes just goes out. If all the other lights, etc....work and the tach is connected to the sensor, I suspect the Tach is bad.

Mar 17, 2009 | 1986 Ferrari 328

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