Lost Most of the Brakes today, nearly crashed
#1
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Year: 2004 WJ, 1998 XJ
Model: Grand Cherokee(WJ)
Engine: 4.7 HO
Lost Most of the Brakes today, nearly crashed
98 xj 4.0
Car in front of me stopped short so I had to hit the brakes pretty hard but not an all out emergency stomp. Pedal grabbed for a second then popped straight to the floor. There was enough grab to stop me thankfully. Brake light came on immediately. I have some braking power but only at the very bottom of the pedal near the floor. After it happened I checked the reservoir and it was full. Had about a 5 mile drive to my destination. When I got there, front brakes were warm and the rear drums were cool to the touch. Not sure of that means anything but wanted to mention it. Any ideas? I need to diagnose and fix this asap. Thanks in advance!
Car in front of me stopped short so I had to hit the brakes pretty hard but not an all out emergency stomp. Pedal grabbed for a second then popped straight to the floor. There was enough grab to stop me thankfully. Brake light came on immediately. I have some braking power but only at the very bottom of the pedal near the floor. After it happened I checked the reservoir and it was full. Had about a 5 mile drive to my destination. When I got there, front brakes were warm and the rear drums were cool to the touch. Not sure of that means anything but wanted to mention it. Any ideas? I need to diagnose and fix this asap. Thanks in advance!
#2
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Year: 88
Model: Cherokee (XJ)
Engine: 4.0 renix
if the master is still full, crawl under the back of the jeep and take a good long look at the rear brakes, the high pressure may have bursted one of the rear brake cylinders..causing the "shuttle" in the proportioning vale to shift..setting the "brake" light.
look for oil running out from the drum down to the tire..or oil "stripes" on the inside of the rear wheels.
look for oil running out from the drum down to the tire..or oil "stripes" on the inside of the rear wheels.
#4
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Year: 2000
Model: Cherokee
Engine: 4.0
Similar thing happened to me except my rear metal brake line had rusted through and I lost fluid. Check you metal brake lines front and rear while your at it.
#7
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Year: 88
Model: Cherokee (XJ)
Engine: 4.0 renix
such a short drive cycle mas have just shifted the shuttle in the prop vale effetiv;y closing the ports to the rear brakes.
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#8
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Year: 2004 WJ, 1998 XJ
Model: Grand Cherokee(WJ)
Engine: 4.7 HO
UPDATE
Thanks for the replies. I checked today and the reservoir was empty. I looked and found a leak from one of the rear brake lines. If I replace the lines, fill and bleed the system am I good to go or is there more to it? Is replacing the lines a difficult job?
Thanks for the replies. I checked today and the reservoir was empty. I looked and found a leak from one of the rear brake lines. If I replace the lines, fill and bleed the system am I good to go or is there more to it? Is replacing the lines a difficult job?
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