1997 Buick LeSabre RPM Jumping

3 messages, Last post on Jun 09, 2009 at 6:58 AM

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#2 of 3 Re: 1997 Buick LeSabre RPM Jumping [dfrankenfield] by imidazol97 Jun 08, 2009 (11:58 am)
Replying to: dfrankenfield (Jun 08, 2009 5:19 am) >My one friend said its probably one or 2 of my sensors that went bad I thought the RPM gauge got its reading from the PCM (computer). I'd look for a dirty connector but first I'd suspect it's in the actual cluster assembly. I'd look for contacts there that have corroded where the cluster connects to the wiring harness. Bonneville people have some trouble with corrosion there. You might try the vibration method-hitting the cluster to try to break through any corrosion with movement enabling a fresh connection metal-to-metal. And there may be a module that interprets the signals from the PCM that's a part of the cluster. That may be failing. But I'd suspect connections first.
#3 of 3 RE:re:1997 Buick LeSabre RPM Jumping [imidazol97] by dfrankenfield Jun 09, 2009 (6:58 am)
alright, yea i didnt think it was a sensor either cuase i didnt see how that really related to the rpm meter but at this point im lookin at all options haha, thanks for the help!