Question about 2008 Chevrolet Impala
Made a loud grinding noise when going up a hill. Noise now comes when turning the car on, and turning off. The car didnt loose power and no warning lights came on
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: grinding noise while driving.
a) a brake disc shield is too close to the disc, and it's coming into contact in the circumstances you outline
b) pebbles stuck between the disc shield and the disk
c) dried out wheel bearings
d) worn Universal Joints in the drive shafts
e) worn A/C pump
f) worn alternator
g) worn water pump
Is the noise still present above 15 miles an hour and past 1500 rpm when the clutch is disengaged (i.e. gearbox in neutral?). The answer to this question may help you to pinpoint the source. I know it's stating the obvious but the fact that you're hearing a grinding sound means it's caused by something that is moving relative to something else. Again this should help narrow down the cause.
Posted on Jun 01, 2009
You can see the brake disc on the front wheels, Check both sides of each side, looking for scoring. Brake pads have wear insicators on them that are metal tabs that contact the rotor (disc) when pads get thin. It would be better to pull the wheels off to get a good look at the pads. Good luck
Posted on Jun 03, 2009
3 things to check:
Worn disc brake pads, grinding against the rotor.
You posted grinding gets worse turning to the right, the problem is the driver side wheel, but it would be best to have both wheeles checked.
Posted on Jun 19, 2009
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