i cleaned rotors prior to installing them.
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1999 Ford Explorer Question: i changed front pads and rotors and now i have thumping from passenger side.
Answer #1PARTS GUY December 20, 2012, 20:13Master
Replace both rotors.
Answer #2Greg's Orange Auto (13199 Answers) , Orange, CA - (714) 361-9386globalhelper December 21, 2012, 06:14Master
recheck your work, sounds like one of the rotors is warpped
Answer #3pushrod December 21, 2012, 15:02Master
Missing or incorrectly installed brake pad clips. Caliper bolts not tight. Does the steering wheel shake when braking?