Tach Problems need help plz w/n

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Aug 8, 2001 | 08:29 PM

Timbo89GTA

Thread Starter

Member

Joined: Jul 1999

Posts: 196

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From: B.C

Car: 89 Trans Am GTA

Engine: 383 TPI

Transmission: 700R4

Axle/Gears: 3:27

Tach Problems need help plz w/n

When I stomp on it or rev it up the tach only goes up to 3000 and jump back down and up , but no higher. What up with that can anyone help. Thanks for any info.

Aug 9, 2001 | 09:54 PM

Timbo89GTA

Thread Starter

Member

Joined: Jul 1999

Posts: 196

Likes: 0

From: B.C

Car: 89 Trans Am GTA

Engine: 383 TPI

Transmission: 700R4

Axle/Gears: 3:27

Hello com'on someone must be able to help me. Is the wire grounding out?

Aug 13, 2001 | 10:51 AM

Zelda1

Junior Member

Joined: Jul 2001

Posts: 9

Likes: 0

From: Marion, NY, USA

Car: 1984 Z28 & 1968 Camaro

Engine: 350 & 355

Transmission: 700R4 & TH350

I have a similar problem with mine but a little worse. Mine when I turn on the headlights kills my tach and oil guage. However if I turn my dash lights OFF they come back. I have traced mine out to be the plastice wiring on the back of the cluster. Try checking the Ohms cross the ground feed of it. See if that is where you are loosing the feed.