wtdash Posted June 29, 2016 Share Posted June 29, 2016 (edited) Vehicle: '96 Legacy L AWD w/the larger OB/GT dual-piston calipers/pads/rotors on the front. EDIT 11/1/2016: Replaced the front left CV axle (lifetime warranty on NAPA NEW axle), it appears to be fixed. First NAPA axle I've had fail, IIRC. Symptom: Makes a Clicking >>Rattling noise when 1st starting out each day or after it's been off for a few hours. - Gradually gets less as car / brake(s warm up. >> Goes away after 5 mins of driving. >> Is Less noticeable w/our latest round of hot (for N. ID) 85-90° weather. - Rotation-based - faster speed = faster clicking. - Seems to be from Driver's side. - Does it whether wheels are turned or straight-ahead. - It gets less and less the firmer I press the pedal. Notes: - Both front axles are NEW (not remfgd) , from our local NAPA auto chain, which I've always had good luck. Axles replaced before I swapped the brakes. And it doesn't sound quite like a bad CV noise. - Front tie-rods - inner AND outer, Sway-bars front and rear, replaced in last year - Removed and regreased the caliper slide bolts and it WAS BETTER for about a day. Clue??? - Widened the gap between the rotor and its brake dust shield. - No difference - Car's brakes seem to work normally. No pulling to one side or the other. - Calipers are 'unknown' condition. Extra set I had from 'who knows what' project. - Pad and rotors are new when I installed the calipers. Suggestions b4 I have the local shop acce$$ my wallet to diagnose? thanks EDIT: Looking @ the 'rusty ring' around the edge of the brake rotor (disk)....thinking it may be hitting. I will grind it down and see.>>>no change. Edited November 1, 2016 by wtdash Link to comment Share on other sites More sharing options...
porcupine73 Posted June 30, 2016 Share Posted June 30, 2016 Hm does it change at all if you're applying the brakes at all like lightly --> firmly? Link to comment Share on other sites More sharing options...
john in KY Posted June 30, 2016 Share Posted June 30, 2016 Just a WAG but could a caliper be just hitting the inside of a wheel? Link to comment Share on other sites More sharing options...
wtdash Posted June 30, 2016 Author Share Posted June 30, 2016 Hm does it change at all if you're applying the brakes at all like lightly --> firmly? - It gets less and less the firmer I press the pedal. (I forgot this little tidbit in my OP.) Thanks TD Link to comment Share on other sites More sharing options...
wtdash Posted June 30, 2016 Author Share Posted June 30, 2016 Just a WAG but could a caliper be just hitting the inside of a wheel? I wouldn't think so. I'm running WRX 16" wheels and these calipers original fit under the OB's 15". thanks Td Link to comment Share on other sites More sharing options...
Fairtax4me Posted June 30, 2016 Share Posted June 30, 2016 Normally a brake pad rattle will stop as soon as you press the brake pedal. Pull the wheel off and see if you can move the brake pads easily up/down in the caliper bracket with your finger. If you can, the anti-rattle clips need to be replaced. Link to comment Share on other sites More sharing options...
1 Lucky Texan Posted June 30, 2016 Share Posted June 30, 2016 after which service did it begin? Link to comment Share on other sites More sharing options...
wtdash Posted June 30, 2016 Author Share Posted June 30, 2016 (edited) after which service did it begin? Sorry, not sure what you're referring to. But the noise likely started a few weeks after I did the front brake swap Thanks Edited June 30, 2016 by wtdash Link to comment Share on other sites More sharing options...
wtdash Posted June 30, 2016 Author Share Posted June 30, 2016 (edited) Normally a brake pad rattle will stop as soon as you press the brake pedal. Pull the wheel off and see if you can move the brake pads easily up/down in the caliper bracket with your finger. If you can, the anti-rattle clips need to be replaced. Rattle is a better description...'clicking' is kinda misleading. I'll give this look this weekend. Related Question, plz: Should the slots where the -pad 'ears' fit - be greased? Thanks Edited June 30, 2016 by wtdash Link to comment Share on other sites More sharing options...
1 Lucky Texan Posted June 30, 2016 Share Posted June 30, 2016 (edited) I grease those slots - some people have found some aftermarket pads that needed the pad backplate filed/ground a little on those ears - maybe flashing or paint causes them to stick a little. Doesn't seem like oversize ears would lead to a rattle....? whne you pulled the old pads out - were they evenly worn ; inside-to-outside pad, and 'toe-to-heel' on individual pads? just seems like your noise might be something like heat shield now - or unrelated to any recent service like the brakes. maybe check that a CV boot band hasn't come loose? Any chance a sway bay endlink is loose? Edited June 30, 2016 by 1 Lucky Texan Link to comment Share on other sites More sharing options...
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