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  #1  
Old 07-02-2014, 11:39 AM
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Post brake booster recall issue

On friday, I had my vehicle in service for a failed ORC module. During the service visit, they did the recall for the the brake booster, listed a parts kit used. I don't have that parts kit number on me now. Anyway, I have noticed that I now have an audible squeaking rubbing sound when the break pedal is depressed, also when making turns, all at low speeds. Question, what did they do for the recall, anything I can look at before I bring it in? I also noticed that my brake pedal feels alot stiffer when the car is off than it was before. So much so, I have failed to start the car several times now because I have not put enough force on the brake pedal to make up the logic for the start sequence.
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Old 07-02-2014, 12:43 PM
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Re: Post brake booster recall issue

sounds like they replaced your booster..(instead of just shielding it) I would get right back over and tell them something is wrong.
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Old 07-02-2014, 12:44 PM
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Re: Post brake booster recall issue

There were two recalls for my wife's 2012 GC brakes. One was a software update and it changed the feel of the brake pedal for the better (not as soft). The other was the brake booster. They check to make sure it isn't rotted and pressure test it. If it is, the whole booster is replaced. If its in good condition the fix is a simple foam piece that goes around to shield the seam of the brake booster (which is what we had). Maybe air got into the system if they pressure tested/replaced yours?
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Old 07-02-2014, 12:54 PM
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Re: Post brake booster recall issue

http://www.wk2jeeps.com/tsb/rc_P1414.pdf


I would go through the steps for reassembly and see if the missed something obvious. The first thing that popped into mind was step 26. It sounds like the vacuum is bleeding off way too quickly after the engine is turned off.

Also pay particular attention to steps 9 through 12 under test brake booster.


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Old 07-02-2014, 01:01 PM
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Re: Post brake booster recall issue

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Originally Posted by sanitarium16 View Post
There were two recalls for my wife's 2012 GC brakes. One was a software update and it changed the feel of the brake pedal for the better (not as soft). The other was the brake booster. They check to make sure it isn't rotted and pressure test it. If it is, the whole booster is replaced. If its in good condition the fix is a simple foam piece that goes around to shield the seam of the brake booster (which is what we had). Maybe air got into the system if they pressure tested/replaced yours?

They test the vacuum pressure to see how fast it drops after the engine is shut off. They don't apply pressure to your brake system.


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Old 07-02-2014, 01:27 PM
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Re: Post brake booster recall issue

Bill, thanks for that link, I printed it out and will check what you suggested. How the pedal feels when the car is off, is very differnet than before the work was done. Why would it be making a noise when I am turning the steering wheel? Maybe something is rubbing the steering shaft in the engine bay?
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Old 07-02-2014, 04:25 PM
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Re: Post brake booster recall issue

I'm thinking something either did get reinstalled, or didn't get reinstalled properly and came loose.The hard pedal with the car off IIRC is caused by low vacuum. If the hose is loose it could still work with the engine running, but bleed off pretty quickly when the engine is turned off.


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Old 07-03-2014, 07:31 PM
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Re: Post brake booster recall issue

curious if you know the condition of your booster before it was replaced was it corroded? mine crapped out but looks good cosmetically on outside. hoping it failed and they'll assume its from the moisture recall issue and fix ir
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Old 07-03-2014, 10:26 PM
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I took my jeep in for the brake booster recall.
When they were done with it I had no brakes so they ordered a new master cylinder they could not
Find one locally . Now here I get to spend the 4th of July weekend using a really bad smelling dealer loaned vehicle a
Dodge van.
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Old 07-03-2014, 10:34 PM
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Re: Post brake booster recall issue

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Originally Posted by jinksnyou View Post
I took my jeep in for the brake booster recall.
When they were done with it I had no brakes so they ordered a new master cylinder they could not
Find one locally . Now here I get to spend the 4th of July weekend using a really bad smelling dealer loaned vehicle a
Dodge van.
What the heck could they do to ruin a master cylinder?


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Old 07-03-2014, 11:37 PM
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Re: Post brake booster recall issue

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Originally Posted by bill_de View Post
What the heck could they do to ruin a master cylinder?


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If you take a look at the recall repair procedure write up document from Chrysler there's a part where it says to pump down the brake so the master cylinder piston in a certain position so it doesn't get damaged. They probably damaged the piston is my guess.

When they replace the master cylinder did they cover that repair or did they give a runaround and act like it was unrelated even though they were last ones in that area of vehicle?
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Old 07-04-2014, 03:10 PM
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Re: Post brake booster recall issue

WOW jinksnyou,

Sounds just like my week. I live in So Cal and took my 2012 Grand Cherokee in this week for a couple small service items and to have the brake booster checked. The service manager told me the booster would only be a problem if I lived in Antarctica but they would take a look and most likely repair it in case I ever sold to someone in a cold climate. He came back two hours later and told me that the Master Cylinder was leaking, they did not have a master cylinder and there was no way they could let me drive that car home. They sent me over to Enterprise to pick up a Chrysler 200, at their expense. They called me back two days later on Thursday and told me they "hope" to have the part in next week. I now get to spend July 4th weekend with the Chrysler 200. Sounds like there may be more going here than meets the eye......
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