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#1
04-29-2008, 12:41 PM
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Tachometer is very spastic from time to time
I have noticed that when driving my 2000 3.1L Alero, that sometimes the tachometer jumps all over the place and that the acceleration is not the best. This only occurs for a matter of 15-30 seconds and then the car accelerates just fine. When the tachometer is acting possessed I notice that my car's acceleration is poor and it seems like my car's engine is experiencing some hesitation. Any suggestions on what the potential problem may be and possible solutions?
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#2
04-30-2008, 10:31 AM
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Re: Tachometer is very spastic from time to time
Welcome to AF.
You have a typo on your engine size. It is a 3.4L. Sounds like an undetected misfire cause by a secondary ignition issue. Spark plugs, ignition wires, or possibly a coil pack or ICM - Ignition Control Module.. When was the last basic tune-up including fuel filter? Do you ever get a SES/CEL light?
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