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joe32
User

Oct 16, 2013, 4:37 PM

Post #1 of 12 (1472 views)
  post locked   brakes  

2001 jeep cherokee popped vacuum line off manifold,put it back on, now brakes are super stiff. Bleed the lines still no change.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Oct 16, 2013, 4:44 PM

Post #2 of 12 (1466 views)
  post locked   Re: brakes  

Sounds like you somehow lost the vacuum supply to the booster in this process.



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Discretesignals
Ultimate Carjunky / Moderator
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Oct 16, 2013, 4:44 PM

Post #3 of 12 (1465 views)
  post locked   Re: brakes  

You popped the line off or did it fall off from a backfire or something?

Have you checked for engine vacuum at the brake booster check valve?





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


joe32
User

Oct 16, 2013, 4:54 PM

Post #4 of 12 (1458 views)
  post locked   Re: brakes  

Any way to get it back?


joe32
User

Oct 16, 2013, 4:57 PM

Post #5 of 12 (1455 views)
  post locked   Re: brakes  

It didn't back fire, it was strange, the defrost was on from the night before other than that nothing.


Discretesignals
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Discretesignals profile image

Oct 16, 2013, 5:04 PM

Post #6 of 12 (1452 views)
  post locked   Re: brakes  

Of course there is a way to get it back, but you have to find out if you have engine vacuum at the brake booster check valve first. Lines usually don't pop off for no reason.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


joe32
User

Oct 16, 2013, 5:15 PM

Post #7 of 12 (1448 views)
  post locked   Re: brakes  

When its running I put my finger over the valve it sucks air.


Discretesignals
Ultimate Carjunky / Moderator
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Oct 16, 2013, 5:19 PM

Post #8 of 12 (1447 views)
  post locked   Re: brakes  

Did you take the valve out of the brake booster and check for vaccum at the end of the valve with the hose still connected to it? The engine has to be running of course.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


joe32
User

Oct 16, 2013, 5:20 PM

Post #9 of 12 (1444 views)
  post locked   Re: brakes  

No


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Oct 16, 2013, 5:27 PM

Post #10 of 12 (1442 views)
  post locked   Re: brakes  

So you pulled the big hose off the check valve and it sucked on your finger?





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


joe32
User

Nov 8, 2013, 5:52 AM

Post #11 of 12 (1401 views)
  post locked   Re: brakes  

Just letting you know I replaced the check valve that fixed it. Thanks.


Tom Greenleaf
Ultimate Carjunky / Moderator
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Nov 8, 2013, 7:11 AM

Post #12 of 12 (1399 views)
  post locked   Re: brakes  

Glad it's fixed and that easy really. Will close as solved. Can be opened by any moderator upon request,

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