92 cevy 1/2 ton rpm gauge bouce

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Fort Hood

08-02-2005, 05:48 PM

When driving down the road rpm gauge fluctuates but engine speed
does not. What sensor do I need to replace/

jeddi20

08-04-2005, 03:37 AM

the sensor is probably fine, sounds like you have a grounding issue

Fort Hood

08-27-2005, 09:41 PM

the sensor is probably fine, sounds like you have a grounding issue

It was the coil. A new one cost $14 and works great.