82-88 tach fix
08-21-2013, 04:09 PM
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Car: 86 IROC
Engine: 5.0 TPI
Transmission: 700-R-4
Axle/Gears: 2.73 open
82-88 tach fix
does anyone know how to fix the tach on a 82-88 Camaro?? I found the write up on the later style but im working on a 86
08-22-2013, 07:56 AM
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Car: 1986 Iroc, 89RS
Engine: 350 tpi, 350 tbi
Transmission: 700r4,700r4
Axle/Gears: 4.10,2.73
Re: 82-88 tach fix
Yes; it will work on MOST model tach's.
I have fixed 3 various year model tach's.
I have an easier way though. When I get home i will take pics.
It involves tracing the wires from the Resistor-Pack to the edge of the board;
where there is MUCH more room to solder a resister.
Just clip the leads of the chip and trace the PCB-traces over to the side.
Scratch the coating off of the trace and solder correct resistor there.
mike
I have fixed 3 various year model tach's.
I have an easier way though. When I get home i will take pics.
It involves tracing the wires from the Resistor-Pack to the edge of the board;
where there is MUCH more room to solder a resister.
Just clip the leads of the chip and trace the PCB-traces over to the side.
Scratch the coating off of the trace and solder correct resistor there.
mike
08-22-2013, 07:59 AM
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Car: 1986 Iroc, 89RS
Engine: 350 tpi, 350 tbi
Transmission: 700r4,700r4
Axle/Gears: 4.10,2.73
Re: 82-88 tach fix
tach board looks different for earlier models; but the same FIX works.
08-23-2013, 08:18 AM
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Car: 86 IROC
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Re: 82-88 tach fix
excellent!! its off to the TV repair shop with my cluster..BUT!!! according to my FSM theres a" tach filter" if its bad .what are the symptoms? does anyone know the values? are they available from GM?
08-24-2013, 09:01 AM
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Car: 1986 Iroc, 89RS
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Axle/Gears: 4.10,2.73
Re: 82-88 tach fix
Sorry, dont have a clue bout the filter.
All 3 of the ones i fixed were the same problem.
Resister pack
symptoms: tach pegs; or tach is wildly reading high
All 3 were the resistor in my case.
mike
BTW...all 3 were older tachs in my case.
one '89, and 2 '86
All 3 of the ones i fixed were the same problem.
Resister pack
symptoms: tach pegs; or tach is wildly reading high
All 3 were the resistor in my case.
mike
BTW...all 3 were older tachs in my case.
one '89, and 2 '86
12-19-2013, 10:18 AM
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Car: 1987 Iroc Z
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Transmission: Borg Warner WC 5-Speed
Axle/Gears: Stock Posi Rearend
Re: 82-88 tach fix
I can sell you one i fixed for $45 + core. I do a professional job and I also replace the capacitors and carbon resistors that can cause a tach to malfunction.
thanks, Greg
thanks, Greg
Last edited by gcj280; 08-13-2014 at 07:15 AM.
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12-19-2013, 10:58 AM
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08-11-2014, 02:08 PM
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08-11-2014, 02:13 PM
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08-04-2015, 06:53 AM
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Car: 82 Trans AM Firebird
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Re: 82-88 tach fix
Don't deal with Buloushie, This scum bag ripped me off. Hes going to take the money that he stole from me and buy a part from you. If he even pays you. This is fair warning for anyone dealing with this piece of sh*t.
01-05-2017, 10:15 AM
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Car: 1987 Iroc Z
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Transmission: Borg Warner WC 5-Speed
Axle/Gears: Stock Posi Rearend
Send me a pm if you need your tach repaired or text me 318-402-1244.
Thanks, Greg
Thanks, Greg
10-12-2017, 11:14 AM
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Re: 82-88 tach fix
I have brand new circuit boards for 82-92 camaro tachometers. $50 shipped.
10-13-2017, 03:24 PM
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10-13-2017, 08:15 PM
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Re: 82-88 tach fix
I’ve sold about 900 and have only had one or two failures. Most likely due to an accidental short by the installer. I calibrate them on my test bench, but some may need slight adjustment. I build in a potentiometer for fine adjustment. It comes with alifetime warranty.
Last edited by gcj280; 02-18-2020 at 01:47 PM.
11-17-2017, 06:50 PM
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Re: 82-88 tach fix
12-01-2018, 01:15 PM
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Re: 82-88 tach fix
Yes; it will work on MOST model tach's.
I have fixed 3 various year model tach's.
I have an easier way though. When I get home i will take pics.
It involves tracing the wires from the Resistor-Pack to the edge of the board;
where there is MUCH more room to solder a resister.
Just clip the leads of the chip and trace the PCB-traces over to the side.
Scratch the coating off of the trace and solder correct resistor there.
mike
I have fixed 3 various year model tach's.
I have an easier way though. When I get home i will take pics.
It involves tracing the wires from the Resistor-Pack to the edge of the board;
where there is MUCH more room to solder a resister.
Just clip the leads of the chip and trace the PCB-traces over to the side.
Scratch the coating off of the trace and solder correct resistor there.
mike
what size resistor do I need and where do I put it. My tach pegs out 88 iroc
10-15-2019, 08:54 AM
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Re: 82-88 tach fix
Could you seed me your contact information I need a tac or have mine fixed it's a 1987 irock 5.7L thank you
10-16-2019, 08:24 AM
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Re: 82-88 tach fix
Sure thing.
Greg Johnson 318-402-1244
website: www.cajuntachshop.com
email: cajuntachshop@yahoo.com
Thanks! Greg
Greg Johnson 318-402-1244
website: www.cajuntachshop.com
email: cajuntachshop@yahoo.com
Thanks! Greg
01-20-2020, 01:15 PM
#36
Re: 82-88 tach fix
Not to dig up an old thread but I'm having problems with my 83 Z28 tach. I have two clusters and both of them peg the tach if i plug in the white wire at the HEI coil. Original cluster was a mess so i ordered a used one off ebay and everything else works now. But same results with tach. Seller says tach was confirmed working.... Sounds like this is the fix. I checked out your website and the replacement boards look awesome. The car was originally cross fire, now carb 350 with HEI coil in cap distributor if that changes anything.
01-22-2020, 11:00 AM
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Car: 1987 Iroc Z
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Transmission: Borg Warner WC 5-Speed
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Re: 82-88 tach fix
Hi ShuffZ. Thanks! This is a very common problem with these tachometers unfortunately. My replacement circuit board should fix your tachs and they come with a lifetime warranty. I will give you a discount for 2 boards or we can work out a trade deal if you don't want both tachs. Just let me know. Give me a call or text when you are ready.
Thanks! Greg
318-402-1244
Thanks! Greg
318-402-1244
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shuffZ (01-27-2020)
02-18-2020, 01:43 PM
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Re: 82-88 tach fix
Thanks! Greg
02-18-2020, 02:11 PM
#40
Re: 82-88 tach fix
For anyone who may be hesitating to pick up the Cajun Tach Shop board, don't.
Put one in my car, and am SUPER pleased to not only have my tach be correct for the first time since I've owned it in 13 years, but it was also dead accurate right out of the box.
@gcj280
Do you have any intentions of expanding to repairs/calibrations of other gauges on these cars or even others?
Put one in my car, and am SUPER pleased to not only have my tach be correct for the first time since I've owned it in 13 years, but it was also dead accurate right out of the box.
@gcj280
Do you have any intentions of expanding to repairs/calibrations of other gauges on these cars or even others?
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mr cribb (03-28-2020)
03-29-2020, 05:59 AM
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