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#1 09-14-2015 10:26:12

ws_xj
Newbie
Registered: 09-27-2008
Posts: 13

Front brake question

I changed the disc brake pads on my Cherokee today, and the brakes get hot while driving. I put in Advance Gold pads. I have had this problem before on an S-10 I used to own. The wheels turn ok, with just a bit of resistance. They get pretty hot, and smell hot after a ride of 10 miles on back-roads. The rotors (reused) looked ok, with one of them having a slight groove. It didn't pull when braking, except after the return trip (say 25 miles), at which point it pulled to the right a bit when braking. The left side was actually hotter than the right.
I have had this happen with NAPA pads, and Advance pads.
I have done many brake jobs on GM, Chrysler, and Ford with success, but this hot wheel issue makes me wonder WHY! In my S-10, the brakes ran cooler after a few days, but shouldn't they just be RIGHT from the start?
For reference: I filed rust off the sliding areas, and lubed them. I don't have ABS. The brakes hadn't been done in the 3 years I have owned this Jeep, and they were quite rusty. The piston moved in smoothly before I put the new pads in.

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09-14-2015 10:26:12

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Re: Front brake question

#2 09-14-2015 10:50:07

stevil
Enthusiast
Registered: 04-29-2009
Posts: 213

Re: Front brake question

check the rods the caliper slides on.  They can get rusty or cruddy and not allow the caliper to move freely.  It doesn't hurt to grease it when doing brakes.

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#3 09-14-2015 10:57:09

cjg758
Lurker
Registered: 03-26-2012
Posts: 3

Re: Front brake question

I hit them with a wire brush to remove all the corrosion and crap, then grease them so the calipers can float easily

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#4 09-14-2015 11:01:49

dave
Newbie
Registered: 04-03-2009
Posts: 13

Re: Front brake question

Your problem is probably your brake lines to the front calipers.  They get old and flake off inside and when the pressure releases the fluid is block for relaxing due to the inside of the brake lines coming apart.  A new set of brake lines will probably cure the problem.  It worked on my Jimmy that way.

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09-14-2015 11:01:49

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Re: Front brake question

#5 09-15-2015 09:15:15

ws_xj
Newbie
Registered: 09-27-2008
Posts: 13

Re: Front brake question

I took the brakes apart, and put anti-seize between the screws and pins, and replaced the one bolt/pin that was completely seized together. They still seemed to bind, so I stomped the crap out of them in a mock panic stop. They seem to be better, and getting better day by day. They turn freely, and get a bit hot, which may be normal to a degree. I talked to my neighbor about it, and he said that he has noticed a variation in pad thickness, to where clearance can be as little as .015, which would rub if calipers don't come all the way back, etc.
I also moved the piston in and out of the caliper a few times.
So, it seems I am on the mend. BTW, AutoZone has a set of 2 bolts and 2 pins for $4.99. Good deal, although the head is an oddball 12mm instead of 13mm.

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