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82-88 tach fix

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Old Aug 21, 2013 | 04:09 PM
  #1  
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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
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Old Aug 21, 2013 | 07:26 PM
  #2  
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Car: 1989 camaro rs convertable
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Re: 82-88 tach fix

Originally Posted by rusty vango
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
did you read it?i used it to fix my 1989 tach.
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Old Aug 22, 2013 | 07:56 AM
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Car: 1986 Iroc, 89RS
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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
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Old Aug 22, 2013 | 07:59 AM
  #4  
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From: NE Texas
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.
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Old Aug 23, 2013 | 08:18 AM
  #5  
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From: knoxville tn
Car: 86 IROC
Engine: 5.0 TPI
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Axle/Gears: 2.73 open
Re: 82-88 tach fix

Originally Posted by mreld3r
tach board looks different for earlier models; but the same FIX works.
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?
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Old Aug 24, 2013 | 09:01 AM
  #6  
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Car: 1986 Iroc, 89RS
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Transmission: 700r4,700r4
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
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Old Dec 19, 2013 | 10:18 AM
  #7  
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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

Last edited by gcj280; Aug 13, 2014 at 07:15 AM.
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Old Dec 19, 2013 | 10:58 AM
  #8  
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Car: 1988 IROC-Z
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Re: 82-88 tach fix

Originally Posted by gcj280
I can sell you one i fixed for $35 + core. I do a professional job and I also replace the capacitors and carbon resistors that can cause a tach to malfunction.

thanks, Greg
Greg, send me your contact info please.
Thank you Allen
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Old Aug 11, 2014 | 02:08 PM
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Re: 82-88 tach fix

Originally Posted by gcj280
I can sell you one i fixed for $35 + core. I do a professional job and I also replace the capacitors and carbon resistors that can cause a tach to malfunction.

thanks, Greg
do you have any more for sale. I need one for an 88, 5.7 car.
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Old Aug 11, 2014 | 02:13 PM
  #10  
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Re: 82-88 tach fix

Originally Posted by gcj280
I can sell you one i fixed for $35 + core. I do a professional job and I also replace the capacitors and carbon resistors that can cause a tach to malfunction.

thanks, Greg
do you have any more for sale. I need one for an 88, 5.7 car.
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Old Aug 13, 2014 | 07:16 AM
  #11  
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Car: 1987 Iroc Z
Engine: 355 TPI Fully Built
Transmission: Borg Warner WC 5-Speed
Axle/Gears: Stock Posi Rearend
Re: 82-88 tach fix

Originally Posted by dcurles
do you have any more for sale. I need one for an 88, 5.7 car.

PM Sent.
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Old Aug 25, 2014 | 08:36 AM
  #12  
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Re: 82-88 tach fix

Greg, please send me your contact info, I would like to buy one of your tachs. Thanks
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Old Aug 29, 2014 | 07:52 AM
  #13  
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Re: 82-88 tach fix

Greg, please send me a PM with your contact info, I would like to purchase a tach, if you have any left, thanks.
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Old Sep 2, 2014 | 08:06 AM
  #14  
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Re: 82-88 tach fix

PM Sent
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Old Sep 5, 2014 | 10:18 PM
  #15  
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Car: 88 IROC
Re: 82-88 tach fix

Hey guys, I'm also interested in buying a repaired tach. Please message me for info. It's for my 86.
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Old Mar 9, 2015 | 09:11 PM
  #16  
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Re: 82-88 tach fix

do you have any more tach have 84 Camaro with 350 v-8
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Old Mar 11, 2015 | 07:33 AM
  #17  
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From: Shreveport, La
Car: 1987 Iroc Z
Engine: 355 TPI Fully Built
Transmission: Borg Warner WC 5-Speed
Axle/Gears: Stock Posi Rearend
Re: 82-88 tach fix

Originally Posted by kyle2921
do you have any more tach have 84 Camaro with 350 v-8
I have temporarily run out of spare tachs. But feel free to send me yours for repair. PM me for details.

thanks, Greg
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Old May 12, 2015 | 11:41 AM
  #18  
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Car: 1986 Z28 Iroc
Engine: 350
Transmission: 700r4
Axle/Gears: 3.23
Re: 82-88 tach fix

Could you send me your info I would like to get my tach fixed
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Old Aug 4, 2015 | 06:53 AM
  #19  
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From: MA
Car: 82 Trans AM Firebird
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Transmission: Swapped WC T5
Re: 82-88 tach fix

Originally Posted by Buloushie
Could you send me your info I would like to get my tach fixed
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.
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Old Jan 5, 2017 | 10:15 AM
  #20  
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From: Shreveport, La
Car: 1987 Iroc Z
Engine: 355 TPI Fully Built
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
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Old Oct 12, 2017 | 08:37 AM
  #21  
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Re: 82-88 tach fix

Originally Posted by gcj280
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
Are you still offering this repair?

Any members here have any feedback from past repairs?
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Old Oct 12, 2017 | 11:14 AM
  #22  
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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 have brand new circuit boards for 82-92 camaro tachometers. $50 shipped.
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Old Oct 12, 2017 | 11:50 AM
  #23  
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Re: 82-88 tach fix

Originally Posted by gcj280
I have brand new circuit boards for 82-92 camaro tachometers. $50 shipped.
You've created your own replacement board with new components?
Could you post a pic please? I'm sure several would be interested in seeing it.
Thanks
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Old Oct 12, 2017 | 01:24 PM
  #24  
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Transmission: Borg Warner WC 5-Speed
Axle/Gears: Stock Posi Rearend
Re: 82-88 tach fix

Originally Posted by KCG
You've created your own replacement board with new components?
Could you post a pic please? I'm sure several would be interested in seeing it.
Thanks
Yes I have. I'll post pics soon.



Last edited by gcj280; Feb 18, 2020 at 01:45 PM.
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Old Oct 12, 2017 | 03:09 PM
  #25  
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Re: 82-88 tach fix

Mine is an '89 and looks like this


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Old Oct 13, 2017 | 03:24 PM
  #26  
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Car: 1987 Iroc Z
Engine: 355 TPI Fully Built
Transmission: Borg Warner WC 5-Speed
Axle/Gears: Stock Posi Rearend
Re: 82-88 tach fix

Here is the new one for an 82-89 camaro.
Attached Thumbnails 82-88 tach fix-82-89.jpg  
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Old Oct 13, 2017 | 04:07 PM
  #27  
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Re: 82-88 tach fix

Looks good! Hows the success rate?
Sending pm.
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Old Oct 13, 2017 | 08:15 PM
  #28  
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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

Originally Posted by KCG
Looks good! Hows the success rate?
Sending pm.
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; Feb 18, 2020 at 01:47 PM.
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Old Nov 10, 2017 | 08:30 PM
  #29  
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Car: 1985 Iroc-Z
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Re: 82-88 tach fix

gcj280, sent PM also
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Old Nov 17, 2017 | 06:50 PM
  #30  
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Car: 1985 Iroc-Z
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Re: 82-88 tach fix

Originally Posted by gcj280
I’ve sold about 20 without a single complaint. I calibrate them on my test bench, but some may need slight adjustment. I build in a potentiometer for fine adjustment. It comes with a 1 year warranty.
Hi Greg, I installed the one you sent me, but had some questions.... PM’d ya
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Old Nov 22, 2017 | 02:27 PM
  #31  
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Car: 1985 Iroc-Z
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Re: 82-88 tach fix

BTW, circuit board is awesome and got my Tach working for the first time in years...
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Old Jul 17, 2018 | 06:46 PM
  #32  
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Car: 86 IROC
Engine: 305 TPI
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Re: 82-88 tach fix

Are you still fixing tachs? Need 86 fixed
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Old Dec 1, 2018 | 01:15 PM
  #33  
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Re: 82-88 tach fix

Originally Posted by mreld3r
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
what size resistor do I need and where do I put it. My tach pegs out 88 iroc
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Old Oct 15, 2019 | 08:54 AM
  #34  
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Re: 82-88 tach fix

Originally Posted by gcj280
I’ve sold about 100 without a single complaint. I calibrate them on my test bench, but some may need slight adjustment. I build in a potentiometer for fine adjustment. It comes with lifetime warranty.
Could you seed me your contact information I need a tac or have mine fixed it's a 1987 irock 5.7L thank you
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Old Oct 16, 2019 | 08:24 AM
  #35  
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From: Shreveport, La
Car: 1987 Iroc Z
Engine: 355 TPI Fully Built
Transmission: Borg Warner WC 5-Speed
Axle/Gears: Stock Posi Rearend
Re: 82-88 tach fix

Sure thing.
Greg Johnson 318-402-1244
website: www.cajuntachshop.com
email: cajuntachshop@yahoo.com

Thanks! Greg
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Old Jan 20, 2020 | 01:15 PM
  #36  
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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.
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Old Jan 22, 2020 | 11:00 AM
  #37  
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From: Shreveport, La
Car: 1987 Iroc Z
Engine: 355 TPI Fully Built
Transmission: Borg Warner WC 5-Speed
Axle/Gears: Stock Posi Rearend
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
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Old Feb 16, 2020 | 01:38 PM
  #38  
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Re: 82-88 tach fix

Hi, I've had trouble the rev counter, the other gauges jumping and live in the UK. Would you / do you ship to UK?
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Old Feb 18, 2020 | 01:43 PM
  #39  
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From: Shreveport, La
Car: 1987 Iroc Z
Engine: 355 TPI Fully Built
Transmission: Borg Warner WC 5-Speed
Axle/Gears: Stock Posi Rearend
Re: 82-88 tach fix

Originally Posted by earthwormtimmy
Hi, I've had trouble the rev counter, the other gauges jumping and live in the UK. Would you / do you ship to UK?
Absolutely, I can ship USPS first class, but it takes about a month at least. If you want to pay a little more for shipping, I can do Priority International. (I prefer it btw)

Thanks! Greg
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Old Feb 18, 2020 | 02:11 PM
  #40  
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From: Lady Lake, FL
Car: 1988 Camaro
Engine: LR4
Transmission: T5
Axle/Gears: 3.23posi/disc
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?
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Old Mar 29, 2020 | 05:59 AM
  #41  
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Re: 82-88 tach fix

Originally Posted by gcj280
Here is the new one for an 82-89 camaro.
Hi could you provide me with a quote for a board for my 1988 Camaro as I am in Australia, Melbourne.
Thanks

Geoff
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Old Aug 15, 2025 | 11:10 AM
  #42  
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Re: 82-88 tach fix

Originally Posted by gcj280
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
do you still work on the tach circuit boards? I need one also temp gauge
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Old Aug 15, 2025 | 04:42 PM
  #43  
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Car: 1987 Iroc Z
Engine: 355 TPI Fully Built
Transmission: Borg Warner WC 5-Speed
Axle/Gears: Stock Posi Rearend
Re: 82-88 tach fix

Hi. I sell brand new boards at www.cajuntachshop.com
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