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Why are the gauges bouncing up and down
2001 Cadillac DeVille

Why are the gauges bouncing up and down

(2001 Cadillac DeVille)
Some days the car wont stay idling when I let off the gas and its also making a humming noise when we go down the road
Tags: cadillac, deville
1 answer & 0 comments
Popular Answer
on September 29, 2019
Hello, my first gut feeling is that you have a charging system problem, such as with your alternator. That assembly may also be causing a humming noise if there is an internal problem. It can cause electrical problems that can prevent proper idling and make the gauges act erratically.

All that said, it could be something else! Testing is needed and a technician's good ear can help determine the source of a noise.
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General Diagnosis
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on September 29, 2019
Hello, my first gut feeling is that you have a charging system problem, such as with your alternator. That assembly may also be causing a humming noise if there is an internal problem. It can cause electrical problems that can prevent proper idling and make the gauges act erratically.

All that said, it could be something else! Testing is needed and a technician's good ear can help determine the source of a noise.
Sign in to reply

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