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#1
09-09-2007, 01:28 PM
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94 Pontiac Grand Prix SE 3.1 VSS
My car won't shift past second and the spedometer doesn't work. These are the symptoms of a bad VSS. I replaced the VSS and it ran fine for a day and now it is doing it again???? I am lost.
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00' Olds Alero 98' Dodge Intrepid ES 94' Pontiac Grand Prix SE 
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#3
09-10-2007, 05:09 PM
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Re: 94 Pontiac Grand Prix SE 3.1 VSS
I checked the wires at the module and everything looks good. Could this be the vacuum modulator? What other wires should I check?
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00' Olds Alero 98' Dodge Intrepid ES 94' Pontiac Grand Prix SE
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#4
09-10-2007, 07:20 PM
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Re: 94 Pontiac Grand Prix SE 3.1 VSS
Just in case this has something to do with it I also have to start my car twice to get it to stay running and it is very sluggish on acceleration.
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00' Olds Alero 98' Dodge Intrepid ES 94' Pontiac Grand Prix SE
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#5
09-10-2007, 08:33 PM
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Re: 94 Pontiac Grand Prix SE 3.1 VSS
Could my ECM be bad?? How do I test the VSS module or the ECM?
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00' Olds Alero 98' Dodge Intrepid ES 94' Pontiac Grand Prix SE
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#7
09-11-2007, 09:38 AM
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Re: 94 Pontiac Grand Prix SE 3.1 VSS
The speedo signal is sent from the VSS to the ECM, then to the cluster. If there is a problem with the ECM, it would cause what you descibe.
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 Still waiting for the "good old days" I'll get to bore my future grandchildren with!
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