tach problems in 1989 IROC-Z

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Feb 25, 2007 | 03:32 PM

berryghardwick

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Junior Member

Joined: Aug 2006

Posts: 34

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From: Ellabell, GA

Car: 89 IROC-Z

Engine: 89-TPI 5.7

Transmission: 700R4

Axle/Gears: 2.73

tach problems in 1989 IROC-Z

My tach in my 89 IROC does not work right. When I start the car it pegs out and the just kinda bounces around. What can I do to fix this problem? It is a 115 mph cluster.

Feb 25, 2007 | 05:05 PM

BrianChevy

Member

Joined: Nov 2002

Posts: 219

Likes: 1

From: Maryville, TN

Car: 1987 IROC Z/28

Engine: 5.0L TPI. Custom Tune

Transmission: 5 Speed/ Pro5.0 short /hurst stick

Axle/Gears: 1LE 10 bolt Rear/T2R 3.45 PBR/disc

I had the same problems on mine and found a replacement tach is more reliable and easy to install. I posted a thread on it a few years ago... here's the link and I hope it helps.

http://tinyurl.com/368zgl ( i can't get the thread link to work directly, but maybe this link will work)

Good Luck!

Brian

Last edited by BrianChevy; Feb 25, 2007 at 05:10 PM.