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Chevrolet Blazer Brake Problems

68 messages,  Last post on Jul 03, 2008 at 6:42 PM

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What is this discussion about? GMC, GMC Jimmy, Brakes, SUV

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#21 of 68 Rear Rotor removal 2002 Blazer by cact34y Sep 01, 2006 (6:46 am)
Replying to: repairdog (Jul 14, 2006 8:16 am) New to this, hope this posts OK.   Looking for advice on removing the rear rotors on a 2002 Chevy Blazer, 4WD. I suspect that the emergency brake pads are holding the rotor on.   My assumtion is this is a combination rotor / drum design and there is a small ridge that the internal pads are catching as I try to remove the rotor.   Can anyone confirm and offer advice?   Thanks Replies to this message: repairdog (Sep 01, 2006 7:49 am) cact34y (Sep 01, 2006 8:57 am) repairdog (Sep 02, 2006 2:51 am)
#22 of 68 Re: Rear Rotor removal 2002 Blazer [cact34y] by repairdog Sep 01, 2006 (7:49 am)
Replying to: cact34y (Sep 01, 2006 6:46 am) Doubt it - those little shoes rarely ever hang up and not like a total rear brake - no ridge forms on a parking only shoe in the drum. So, if as most the rotor/drum has rusted to the axle flange so get a 3 lb hand sledge and wack it a few times - I bought a special dead hit hammer at Sears that is shot filled and plastic coated ends so I can hit away on many parts on the Blazer that require some help coming off. Really thats all you need to do and may take a bunch of hard blows to get off - hit the center and sides but be careful on the rotor face. I would also suggest getting rebuilt calipers cause those ones in the rear always bind after pushing back in for new pads and make sure you pull the slide pins out of the bracket and grease them (a rubber cap holds on and it just pops off). You can get "loaded" calipers with the pads, caliper and braclet all ready to go for about $60 per wheel - cheapest way to go if a slide is frozen. Replies to this message: cact34y (Sep 01, 2006 8:57 am) repairdog (Sep 02, 2006 2:51 am)
#23 of 68 Re: Rear Rotor removal 2002 Blazer [repairdog] by cact34y Sep 01, 2006 (8:57 am)
Replying to: repairdog (Sep 01, 2006 7:49 am) Thanks! I'll give it a try.   The rotor does move outward a little (maybe an 1/8") and then hangs up. That's why I thought it must be catching on the pad inside. It even sounds like something inside is catching. The lug holes move in comparison to the lug bolts so it seems to be moving in relation to the hub itself.   I didn't see any clips on the lugs. I'm in the northeast so the first thing that came to me was a ridge at the edge of the inside of the rotor / drum caused by some corrosion or wear. Will try the old way, get a bigger hammer Replies to this message: repairdog (Sep 02, 2006 2:51 am)
#24 of 68 Re: Rear Rotor removal 2002 Blazer [cact34y] by repairdog Sep 02, 2006 (2:51 am)
Replying to: cact34y (Sep 01, 2006 8:57 am) Originals did have I believe clips on 2 lugs and I did assume you have the caliper bracket OFF and the parking brake released and the cable/pedal is not over tighten. Then hit away. The axle will move in the housing some - its a GM.
#26 of 68 97 Jimmy brakes by leeiswho2b May 05, 2007 (7:59 pm)
I'm thinking of getting a 97 Jimmy. Anyways, there is a concern I have. Sometimes when you press the brakes you can here a buzzing sound coming from what it seems to be the front driverside. It sounds like an electric motor or something. I was told the ABS sensor, calipers, rotors, and pads have been replaced. Also said he had a diagnostic ran on it and showed no problems. Was worse before replacing the before mentioned parts. The brakes felt a little spongy to me. Had a friend said his Grand Vitara did the same, all it needed was bled. Question is anyone had this problem before, and how did you resolve it? Replies to this message: repairdog (May 06, 2007 2:53 am) leeiswho2b (May 06, 2007 8:46 am)
#27 of 68 Re: 97 Jimmy brakes [leeiswho2b] by repairdog May 06, 2007 (2:53 am)
Replying to: leeiswho2b (May 05, 2007 7:59 pm) Sure the sound is brakes and not a vac problem - check all the vac lines on the drivers side for rot from PVC to the reservior and also the large hose to the power brake unit. See if all OK and that the throttle cable is not against the PCV as that gives off a buzzing noise as the retainer clips on the intake always break off so resecure. Replies to this message: leeiswho2b (May 06, 2007 8:46 am)
#28 of 68 Re: 97 Jimmy brakes [repairdog] by leeiswho2b May 06, 2007 (8:46 am)
Replying to: repairdog (May 06, 2007 2:53 am) I don't think I clarified enough. It almost sounds like a really loud fuel pump, like when you turn the ignition on before starting. It comes on for a couple of seconds then goes off. But it is in the front driver side by the wheel. it doesn't stay on. Does it only when you are pressing the brake. But not everytime. This is with the engine running.
#29 of 68 97 Jimmy Brake Problem by my97jimmy May 22, 2007 (3:33 am)
I just put new front brake rotors and pads on my Jimmy, which I've done many times before. Immediately after replacing them I went for a test drive. When I apply the brakes I feel a mild vibration/shaking and the right wheel gets hot and the right brake pads squeel. Do I have a bad rotor, if so which one, or do I have a bad caliper? All worked fine before I changed them. Thanks, Keith Replies to this message: repairdog (May 22, 2007 2:05 pm) my97jimmy (May 25, 2007 4:32 am) repairdog (May 25, 2007 12:12 pm) and 1 more...
#30 of 68 Re: 97 Jimmy Brake Problem [my97jimmy] by repairdog May 22, 2007 (2:05 pm)
Replying to: my97jimmy (May 22, 2007 3:33 am) Sounds like when you pushed the pistons back in the right one jammed on applying the brakes. Did you grease the slides? Pads must also freely move in the calipers on the metal inserts - if they jam that could be it too - sometimes the caliper bracket gets rust under that metal insert and the pads bind - pop the insert our and remove all rust if binding and use alittle grease on the pad to insert mating points. The rears are known for binding as the single piston is composite plastic. Replies to this message: my97jimmy (May 25, 2007 4:32 am) repairdog (May 25, 2007 12:12 pm) my97jimmy (May 25, 2007 12:32 pm)

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