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2000 Chevrolet Monte Carlo LS 2dr Coupe

2000 Chevrolet Monte Carlo
Trim Info:
Front Wheel Drive, 2 Door Coupe LS, Mid-Size
20 mpg city / 32 mpg hwy
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April 12, 2013, 1:11 pm

Bill W

Question: traction off/abs replaced bearing hub

i replaced the pass side front hub bearing, due to growling noise. the trac.abs/service trac light were not on before i replaced the bearing.
I was extremely careful with the wires during install.

after starting the car upon install completion, the abs/ trac/service lights came on, and stayed on. they will not go out.
there are no apparent problems and the repair appears to be successful.

i took it to my mechanic and when he hooked up to computer, he said that he could not communitcate with the car when engine is running, but can when key is in the on position, engine not running...or vice versa. he could not see any set codes and could not turn off the lights.

anyway, he suggested that it may be a problem with the ignition, or module ,, not allowing the scanner to communicate with the car. have you ever heard of this being the problem?

he said he had an impala with the same symptoms.. he ended up replacing the ignition, and the lights went out, everything back to normal.......

thank you for any help....

April 16, 2013, 10:27 pm

Richard W
Expert Mechanic

Yes I have seen replacing the ignition switch fixing this problem. GM has problems with the ignition switch. GM has also had lots more problems with your sytle of ABS module. The shop can test to see which one or both you need.

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