BRAKE problem ! Need suggestions!
I have a 1991 jeep cherokee limited , so lately iv been driving it and out no were my breaks started to make air noise everytime i would push down on them, as well the peddle was going to the floor, another thing if i cotinue to push the peddle down hard it make my jeep idle higher, now i have bleed them many times n the peddle still goes to the floor n ot hardly breaks, now i do have abs but.it was never connected , had ot for 3years n it just started happening , now im not sure if it might be the break booster or MC or the diaphragm? Any ideas ??
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Vacume problem. Start checking vacume lines from booster to motor. will cause all of the symptoms you are describing. If you can't find leak its the booster. Try a tube up to your ear while its running and probe around vacume canister and vacume lines.should hear where leak is.
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Originally Posted by MoparNJeep
(Post 2428173)
Vacume problem. Start checking vacume lines from booster to motor. will cause all of the symptoms you are describing. If you can't find leak its the booster. Try a tube up to your ear while its running and probe around vacume canister and vacume lines.should hear where leak is.
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That is most likely the one. I would check all that come from the booster though. Cant remember off hand how many there are.
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Originally Posted by MoparNJeep
(Post 2428188)
That is most likely the one. I would check all that come from the booster though. Cant remember off hand how many there are.
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I would check diaphragm in master if it looks good then its the booster. If you can check vacume line with gage as you press brake it may show you what is happing. I would try to have someone press brake as you descibe and listen with a stethoscope or small hose to determine where noise is coming from. Gonna be the fastest way to determine problem.
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Originally Posted by MoparNJeep
(Post 2428286)
I would check diaphragm in master if it looks good then its the booster. If you can check vacume line with gage as you press brake it may show you what is happing. I would try to have someone press brake as you descibe and listen with a stethoscope or small hose to determine where noise is coming from. Gonna be the fastest way to determine problem.
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So iv changed the booster one from the junkyard n it seems that i might of got a.bad one diaphragm is still hissing, n i just replaced the master cylinder brand new n my breaks still feel weak
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master cylinder seems to be the culprit. brake pressuire is bleeding through internally through the seals on the rod. my guess
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Originally Posted by XJRed96
(Post 2451527)
master cylinder seems to be the culprit. brake pressuire is bleeding through internally through the seals on the rod. my guess
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You have some odd breaks, I usually sit down eat a snack and drink a pop or something for 10 min or so.
Now I'd we are talking about brakes that makes more sense, sounds like that JY brake booster is failing on you. What can you say it's a JY part could last you 15 years or it could be the reason the jeep was in the JY anyway, you never know. |
1 Attachment(s)
Originally Posted by PNWjeeper
(Post 2451646)
You have some odd breaks, I usually sit down eat a snack and drink a pop or something for 10 min or so.
Now I'd we are talking about brakes that makes more sense, sounds like that JY brake booster is failing on you. What can you say it's a JY part could last you 15 years or it could be the reason the jeep was in the JY anyway, you never know. Attachment 190652 |
Originally Posted by PNWjeeper
(Post 2451646)
You have some odd breaks, I usually sit down eat a snack and drink a pop or something for 10 min or so.
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Originally Posted by Dr. Doom
(Post 2451689)
Lol I think that still flew above a couple heads. |
Originally Posted by Dr. Doom
(Post 2451689)
Lol I think that still flew above a couple heads.
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