Cold Weather Brakes?? - JeepForum.com

 
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post #1 of 6 Old 09-19-2013, 06:59 PM Thread Starter
Brakeman62
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Cold Weather Brakes??

I have a 2001 WJ Laredo 4.0. When I first start it on a cold morning the brake peddle is stiff and goes nearly to the floor. If I pump the peddle it will start to build back up. As the truck warms up, the brake peddle loosens up and the brakes get back to normal.
Any ideas??? Thanks!!

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post #2 of 6 Old 09-19-2013, 09:53 PM
asatxj
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If the PEDAL goes to the floor when cold and gets better, I would take a look at your booster and the vac. plumbing for it. Might have a slow leak that the system can overcome and pressurize when you get going. Are your brakes mushy all the time? when did you do your last brake job?

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post #3 of 6 Old 09-20-2013, 02:44 AM
sprocket1200
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Try new fluid with turkey baster method. Cheap and easy.

Ours improved noticeably after doing this and it was already good then!
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post #4 of 6 Old 09-20-2013, 10:37 AM Thread Starter
Brakeman62
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Thanks for the reply!! Brakes are not mushy all the time, only when I start it in cold weather. I just replaced both front and back brakes.
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post #5 of 6 Old 09-20-2013, 11:25 AM
Merc1973
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Quote:
Originally Posted by asatxj View Post
If the PEDAL goes to the floor when cold and gets better, I would take a look at your booster and the vac. plumbing for it. Might have a slow leak that the system can overcome and pressurize when you get going. Are your brakes mushy all the time? when did you do your last brake job?
And the Master cylinder.

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post #6 of 6 Old 09-20-2013, 09:36 PM
asatxj
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Only when cold sounds like maybe some moisture in the system, water will condense when it's cold and give you a "water bubble" that will get somewhat dispersed when it gets warmed up. Still somewhat spongy though. I'd do the turkey baster method and then bleed the system as step 1. If there is no change I'd replace the booster (I have two good used ones btw) and last do the MC. Unless you can find a used MC/Booster combo for cheap and do both.

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