No Brakes!
Thread Starter
Seasoned Member
Joined: Nov 2010
Posts: 473
Likes: 2
From: Cincinnati, Ohio
Year: 2004
Model: Grand Cherokee
Engine: 4.0 I6
I have a 92 sport and a big problem. 95% of the brake petal travel is nothing. no brake grab. no resistance whatsoever. there's maybe an inch of actual braking on the petal and its not the pads or fluid level. brake booster maybe? Help!
Thread Starter
Seasoned Member
Joined: Nov 2010
Posts: 473
Likes: 2
From: Cincinnati, Ohio
Year: 2004
Model: Grand Cherokee
Engine: 4.0 I6
CF Veteran
Joined: Sep 2009
Posts: 1,471
Likes: 3
From: Knoxville, TN
Year: 1998
Model: Cherokee
Engine: 4.0 inline 6 (o yea!)
yes, because they are on the same hydraulic system. If the back brakes are out of adjustment then you are sending more fluid to the back to try and get them to stop.
Also try this, with the Jeep running if you stomp the brake pedal real hard (like a panic stop situation) and it is hard but then slowly goes soft then I would almost say the booster is bad.
Also try this, with the Jeep running if you stomp the brake pedal real hard (like a panic stop situation) and it is hard but then slowly goes soft then I would almost say the booster is bad.
CF Veteran



Joined: Apr 2009
Posts: 18,786
Likes: 14
From: CT.
Year: 88
Model: Comanche (MJ)
Engine: 4.0 HO
Well I would adjust up the rears till you have little resistance while spinning the wheel. And if that did not help then look for leaks on the steel lines and rubber hoses, calipers and wheel cylinders.
If those check out good then you may likely have a bad master cylinder.
If those check out good then you may likely have a bad master cylinder.
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Old Skewl CF like a Sir
Joined: Feb 2008
Posts: 4,355
Likes: 3
From: Fort Myers, FL
Year: 1996
Model: Cherokee
Engine: 4.0L High Output OBDII
All good advice. ^^
Try a quick round of cracking the bleeders, won't hurt nothing. I'm thinking more hydrolics, like a possible master.
Try a quick round of cracking the bleeders, won't hurt nothing. I'm thinking more hydrolics, like a possible master.
CF Veteran



Joined: Apr 2009
Posts: 18,786
Likes: 14
From: CT.
Year: 88
Model: Comanche (MJ)
Engine: 4.0 HO
Thread Starter
Seasoned Member
Joined: Nov 2010
Posts: 473
Likes: 2
From: Cincinnati, Ohio
Year: 2004
Model: Grand Cherokee
Engine: 4.0 I6
CF Veteran
Joined: Mar 2010
Posts: 47,923
Likes: 38
From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
tocheck the brake booster proprely you pump the pedal with vechicle not running the pedal should get harder and higher with each pump when it get to the top and real hard hold pedal and start vechicle the pedal should drop some if it does its ok a bad booster will make pedal very very hard to push at all times
CF Veteran



Joined: Apr 2009
Posts: 18,786
Likes: 14
From: CT.
Year: 88
Model: Comanche (MJ)
Engine: 4.0 HO



But I could use some of your snow here in the north east.
