Re: need help for the pros for TJ front brakes that stick
 

Ditto, used to happen all the time to Chrysler products twenty
years, were yours still the plastic pistons?
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

fdarcari@netscape.net wrote:
>
> I had a similar problem after I replaced the pads on my 99TJ. The
> piston in the caliper on the drivers side starting sticking. Replaced
> the caliper with a rebuilt one from Autozone, about $20 with exchange.
> A couple of weeks after that, the piston in the caliper on the
> passenger side started sticking. Replaced that caliper also. I have had
> no further problems and that was about 8 months ago. Anyway, I think it
> is very possible your problem could be the pistons sticking even though
> they are both sticking at the same time. I think installing new pads
> had something to do with it. Put the piston in a different operating
> range due to the thickness of the new pad. I didn't take the calipers
> apart, but there could have been a groove in the bore catching the
> piston.
> Hope this helps. Good luck,
> Frank

Re: need help for the pros for TJ front brakes that stick
 

I had a Galiper seize after leaving school many year ago with my 86
Chevette,
Good thing it was winter as i end up in a bank snow.

Seize one side = Galiper ( can happen real quick )
both side... master cylinder or related.....


"Mike Romain" <romainm@sympatico.ca> a écrit dans le message de news:
41DAEB3F.C7F37DF4@sympatico.ca...
> That is strange. If it was one side.....
>
> There is a combination valve that controls the front to rear wheel
> pressures and the Master Cylinder. Those are the only two places both
> wheels have in common.
>
> It is unusual for the combination valve to fail.
>
> I have seen masters fail so the front brakes won't release.
>
> I would test it by opening the line fitting for the fronts right at the
> master. If pressure squirts out and they release, the master has failed
> internally. (I just crack them, if under pressure it will come out fast
> first, then slow right down)
>
> If not, then I would open it somewhere after the combination valve on
> either side to look for the stored up pressure. If none there, then I
> would go to the wheel caliper and open it. If that is the only place to
> show built up line pressure, then that implies the rubber lines from the
> wheels to the frame have internally collapsed. It does happen.
>
> This only happens on one side at a time though usually unless someone
> put the wrong fluid into the brake reservoir. If it got the wrong
> fluid, both front hoses could have died.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> snowboardripper@hotmail.com wrote:
>>
>> I have a 2002 TJ with new pads in the front ( put on early summer). I
>> was driving to work this morning and the front brakes stayed on. I
>> could feel the resistance and noticed the smell, and the drag from the
>> front. Both front wheels were hot to touch. What causes both of them
>> to stay on? The jeep was in a garage overnight so they were not frozen.
>> I assume it must be the module that controls the braking, but if there
>> is anything I can check it would be a help.

Re: need help for the pros for TJ front brakes that stick
 

I had a Galiper seize after leaving school many year ago with my 86
Chevette,
Good thing it was winter as i end up in a bank snow.

Seize one side = Galiper ( can happen real quick )
both side... master cylinder or related.....


"Mike Romain" <romainm@sympatico.ca> a écrit dans le message de news:
41DAEB3F.C7F37DF4@sympatico.ca...
> That is strange. If it was one side.....
>
> There is a combination valve that controls the front to rear wheel
> pressures and the Master Cylinder. Those are the only two places both
> wheels have in common.
>
> It is unusual for the combination valve to fail.
>
> I have seen masters fail so the front brakes won't release.
>
> I would test it by opening the line fitting for the fronts right at the
> master. If pressure squirts out and they release, the master has failed
> internally. (I just crack them, if under pressure it will come out fast
> first, then slow right down)
>
> If not, then I would open it somewhere after the combination valve on
> either side to look for the stored up pressure. If none there, then I
> would go to the wheel caliper and open it. If that is the only place to
> show built up line pressure, then that implies the rubber lines from the
> wheels to the frame have internally collapsed. It does happen.
>
> This only happens on one side at a time though usually unless someone
> put the wrong fluid into the brake reservoir. If it got the wrong
> fluid, both front hoses could have died.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> snowboardripper@hotmail.com wrote:
>>
>> I have a 2002 TJ with new pads in the front ( put on early summer). I
>> was driving to work this morning and the front brakes stayed on. I
>> could feel the resistance and noticed the smell, and the drag from the
>> front. Both front wheels were hot to touch. What causes both of them
>> to stay on? The jeep was in a garage overnight so they were not frozen.
>> I assume it must be the module that controls the braking, but if there
>> is anything I can check it would be a help.

Re: need help for the pros for TJ front brakes that stick
 

I had a Galiper seize after leaving school many year ago with my 86
Chevette,
Good thing it was winter as i end up in a bank snow.

Seize one side = Galiper ( can happen real quick )
both side... master cylinder or related.....


"Mike Romain" <romainm@sympatico.ca> a écrit dans le message de news:
41DAEB3F.C7F37DF4@sympatico.ca...
> That is strange. If it was one side.....
>
> There is a combination valve that controls the front to rear wheel
> pressures and the Master Cylinder. Those are the only two places both
> wheels have in common.
>
> It is unusual for the combination valve to fail.
>
> I have seen masters fail so the front brakes won't release.
>
> I would test it by opening the line fitting for the fronts right at the
> master. If pressure squirts out and they release, the master has failed
> internally. (I just crack them, if under pressure it will come out fast
> first, then slow right down)
>
> If not, then I would open it somewhere after the combination valve on
> either side to look for the stored up pressure. If none there, then I
> would go to the wheel caliper and open it. If that is the only place to
> show built up line pressure, then that implies the rubber lines from the
> wheels to the frame have internally collapsed. It does happen.
>
> This only happens on one side at a time though usually unless someone
> put the wrong fluid into the brake reservoir. If it got the wrong
> fluid, both front hoses could have died.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> snowboardripper@hotmail.com wrote:
>>
>> I have a 2002 TJ with new pads in the front ( put on early summer). I
>> was driving to work this morning and the front brakes stayed on. I
>> could feel the resistance and noticed the smell, and the drag from the
>> front. Both front wheels were hot to touch. What causes both of them
>> to stay on? The jeep was in a garage overnight so they were not frozen.
>> I assume it must be the module that controls the braking, but if there
>> is anything I can check it would be a help.