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Old 08-06-2007, 03:34 PM
Tyler
 
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1995 suburban 1500 series 4by

I have a 1995 1500 series four wheel drive Suburban. It keeps warping the front rotors. I had the original rotors turned & installed new brakes & within 2 months they warped. I bought new rotors & brakes from Autozone & installed them. They lasted 2 or 3 months before warping. I replaced the master cylinder, both front brake lines, rotors, & brakes again & they lasted 4 or 5 months before warping again. I know the calipers can stick & warp the rotors, but I find it hard to believe both calipers would go out at the same time. I would hate to replace them & my rotors warp again anyway, because they are expensive. The antilock brake system light has alway's been on since I purchased the vehicle & I drove it 2 years before having trouble with the brakes. I was told that when abs goes out it just quits working & wouldn't warp rotors, but I don't know much about abs systems. I'm thinking either the calipers are sticking or that the autozone rotors are made from cheap materials. Is there anyone that has had similiar problems with a Suburban four wheel drive or four wheel drive chevy truck? This thing has me baffled. Any help will be appreciated. Thank,s jtyler

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Old 08-15-2007, 08:29 PM
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Yes the abs will just stop working when the light is on, and I wouldn't be surprised if the cheap rotors are the reason for the repeated warping. It doesn't warp them only after you pull a trailer thats bigger than you're supposed to pull does it? Just curious.
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Old 08-16-2007, 12:29 AM
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It sounds like something happened to your system when you had the original rotors turned and the new "brakes" installed the first time. What do you mean by "brakes"? Pads? calipers?
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Old 08-16-2007, 03:13 PM
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reply to the last 2 posts

I'm not using this vehicle for towing right nowl. My wife is driving it back and forth to work. I'm leaning towards the problem being cheap rotors. I did the brake job at night and the only autopart store open nearby was Autozone. The rotors only cost 26.00 each. I went to the Chevrolet dealership to find out if there had been a recall on this vehicle concerning the brakes,(someone mentioned in an earlier post)and there had not. I explained what was happening and he said it sounded like cheap rotors not holding up. There rotors are $130.00 each. I just got back from Florida,(vacation) and funds are low. As soon as I can save up the money I'm going to buy factory rotors and brake pads. I believe this will fix it. reply to the last person's post The original rotors that I had turned had 175,000 miles on them, so I believe they had been turned several times already and we're too thin. I replaced them with Autozone rotors and new brake pads again. This is where I messed up. These rotors obviously won't hold up to a heavy 4by4 burban. I also replaced both front brake hoses, the master cylinder and the calipers aren't sticking. Cheap rotors has to be the problem. The guy at the dealership said that sometimes the actual wheel flange that the rotor bolts to can be rusted, or warped and cause this. Mine we're very clean and the vehicles hasn't been wrecked or taken off road. I'll tear it back down again pretty soon and I'll let your guy's know if this fixes it. jtyler
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Old 08-17-2007, 10:08 PM
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I have known numerous folks with mid to late 90s chevy and gmc pickups and suburbans with front rotor issues. I had a 99 gmc 1500 4X4 and could not keep them from bumping after a couple thousand miles and i am easy on brakes. In my opinion they are undersized for the weight of the vehicle.
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Old 08-18-2007, 09:33 AM
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Quote:
Originally Posted by 38Dodgebiz
I have known numerous folks with mid to late 90s chevy and gmc pickups and suburbans with front rotor issues. I had a 99 gmc 1500 4X4 and could not keep them from bumping after a couple thousand miles and i am easy on brakes. In my opinion they are undersized for the weight of the vehicle.
Thank's for the info. This thing has given me fits. jtyler
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Old 08-18-2007, 01:49 PM
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Had a problem like that on my wifes 99 yukon . When she had the brakes done and new tires put on I did n't have time to working to much o/t found out after 2ea. sets of rotors that the tire guy was using a air gun and not tourque wrench to install and wrapping the rotors..........alum. wheels..... needless to say he does not get any more of my money ... and I do most of my own work again on the wifes .yukon....
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Old 08-18-2007, 02:03 PM
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When you changed the rotors did you clean up the hub. We sand blast everyone to get all the rust and crap off of them. If the rotor doesnt sit against a flat surface it will warp quickly. I would get a set of Wagner rotors, clean the hubs up real good before installing them, as stated above, sand blasting works real well.
When you re-install the wheels torque the nuts to 100 Ft Lbs in a criss cross pattern and you will not have any issues. Never, never install lugs with an impact gun or you will be buying new rotor again.

Almost all rotor failures are due to installation or preparation issues.
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Old 08-18-2007, 02:41 PM
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Quote:
Originally Posted by T-bucket23
When you changed the rotors did you clean up the hub. We sand blast everyone to get all the rust and crap off of them. If the rotor doesnt sit against a flat surface it will warp quickly. I would get a set of Wagner rotors, clean the hubs up real good before installing them, as stated above, sand blasting works real well.
When you re-install the wheels torque the nuts to 100 Ft Lbs in a criss cross pattern and you will not have any issues. Never, never install lugs with an impact gun or you will be buying new rotor again.

Almost all rotor failures are due to installation or preparation issues.
I didn't sandblast the hubs. They we're very clean. I don't have a sandblaster, but I suppose I could use a sanpaper paddle wheel on a drill motor next time. I used an impact wrench to break them loose but used a tiretool to retighten in a criss cross pattern. I'll try using a torque wrench next time at 100 ft lbs. Who carries wagner rotors. I live in South carolina & we have Napa,carquest,Autozone,Advance Auto, Oriley's, and the Chevrolet dealership. Thank's, jtyler
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Old 08-18-2007, 06:39 PM
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Quote:
Originally Posted by jtyler
I didn't sandblast the hubs. They we're very clean. I don't have a sandblaster, but I suppose I could use a sanpaper paddle wheel on a drill motor next time. I used an impact wrench to break them loose but used a tiretool to retighten in a criss cross pattern. I'll try using a torque wrench next time at 100 ft lbs. Who carries wagner rotors. I live in South carolina & we have Napa,carquest,Autozone,Advance Auto, Oriley's, and the Chevrolet dealership. Thank's, jtyler
We have had excelent luck with Wagenrs. I dont know who would carry them in your area. We also only use the Thermo Quiet or Original Equipment shoes. We have almost zero brake come backs.
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Old 08-18-2007, 06:56 PM
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Quote:
Originally Posted by T-bucket23
We have had excelent luck with Wagenrs. I dont know who would carry them in your area. We also only use the Thermo Quiet or Original Equipment shoes. We have almost zero brake come backs.
Thank's. I'll look around and find out who carries wagner rotors in my area. jtyler
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