RPM Needle all over the place
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Joined: Jul 2011
Posts: 54
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From: I.E.
Car: 1992 RS
Engine: 305 5.0L V8 TBI
RPM Needle all over the place
A few days ago I noticed cars tach needle was moving up and down crazy. The car was fine when the weather was nice and sunny. Now it's been raining and this issue came up. Might be a short in the ignition system?
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Joined: Oct 2001
Posts: 12,229
Likes: 1,156
From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: RPM Needle all over the place
Check the plugwires, sounds like they need a quality replacement.
Thread Starter
Junior Member
Joined: Jul 2011
Posts: 54
Likes: 0
From: I.E.
Car: 1992 RS
Engine: 305 5.0L V8 TBI
Re: RPM Needle all over the place
One of the spark plug wires was broke. Changed it and it seem to work for a short time. Car died on me on the freeway seems to be the same issue. Towed it to a mechanic, see what they say.
Thread Starter
Junior Member
Joined: Jul 2011
Posts: 54
Likes: 0
From: I.E.
Car: 1992 RS
Engine: 305 5.0L V8 TBI
Re: RPM Needle all over the place
Well I received an update from the shop. They say the car only turn off on them once. After that it's been running good. When I bring it home I will just replace all the spark plug wires and see what I can do.
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MikkoV
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Sep 9, 2015 04:25 PM