Check the fluid level to be sure.
When I took the calipers off I checked the fluid and saw I had lost about 3/8 of an inch but the reservoir had plenty of fluid.
Interesting stain
Thread Starter
Cruising
Joined: Apr 2009
Posts: 10
Likes: 0
From: Texas
Interesting stain
Took my tires off Sunday to get my brake calipers turned. I noticed this in the right-rear tire wheel well.
heres another
Sorry for the terrible quality. There was no evidence of oil leakage at the boot.
heres another
Sorry for the terrible quality. There was no evidence of oil leakage at the boot.
Instructor
Joined: Feb 2005
Posts: 247
Likes: 1
Wheel bearing grease
I just had the same wheel bearing replaced and prior to it starting to make a noise i got that stain,i thought i ran over something but what happened was the sealed unit that houses the grease cracked open and slowly started to throw bits of grease to the fender well so 500 dollars later no more noise or stain,let me know how you make out because this may not be your problem good luck
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Not a good sign to see. Hope it is not a real expensive fix.
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St. Jude Donor '09
I had the same thing in my car I thought a seal was broken. I ran over a bottle of cooking oil a few months ago and it turned into a sludge that was all over my wheel well and inside my wheel.........
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From: Lake Mary Florida
"General Motors has a different opinion. In technical bulletin #00-05-22-002 to its dealers, GM says, "Brake rotors should only be turned when one of the following rotor surface conditions exist: severe scoring with depth in excess of 1.5 mm or 0.060 inch, pulsation from excessive lateral runout of more than .080 mm or .003 inch, thickness variation in excess of 0.025 mm or 0.001 inch, or excessive corrosion on rotor braking surfaces."
GM also says "Rotors are not to be resurfaced in an attempt to correct the following conditions: noise/squeal, cosmetic corrosion, routine pad replacement or discoloration/hard spots."
GM says resurfacing rotors unnecessarily shortens rotor life. They also say resurfacing is "ineffective at correcting brake squeal and/or premature lining wear and should not be used to address these conditions, unless specifically directed to do so in a service bulletin."
I was trying to find the paper that was written on this subject but no immediate luck. I would not turn rotors, put new pads on and bed them, or replace the rotor and put new pads on and bed them.