Speedometer going whacky
09-27-2005, 04:40 PM
#1
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Speedometer going whacky
My speedometer will bounce around while driving. Example: I will be driving 70MPH and it will fall to 80 or 90 then jump back to 70. The duration varies and it can also read slow. I notice it will jump when I use my turn signal as well but not all the time. I checked my altenator and it is putting out 13.7 volts. What is the cause?
96' bonneville SE 214K miles 3.8 no supercharger.
96' bonneville SE 214K miles 3.8 no supercharger.
09-27-2005, 04:57 PM
#4
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You may want to get a scantool on it and see if the PCM is seeing the same thing... Either the speedo on the cluster could be bad/ or possible bad connection, or the Vehicle Speed Sensor may be getting funky... Good Luck
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09-27-2005, 08:13 PM
#5
Originally Posted by jr's3800
You may want to get a scantool on it and see if the PCM is seeing the same thing... Either the speedo on the cluster could be bad/ or possible bad connection, or the Vehicle Speed Sensor may be getting funky... Good Luck
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