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Unread 03-19-2010, 08:31 PM   #1
MikeUnlimited04
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2001 TJ Wrangler 
 
Join Date: Oct 2007
Location: Seymour Johnson AFB, North Carolina
Posts: 361
Brake Booster or Master Cylinder>?

Ok, For the last 2 months my brake pedal has felt spongy and soft. Occasionally the pedal will lose pressure and become VERY difficult to stop. Other times it works fine. I would say 7/8 stops are fine. but the other 1/8 the pedal feels loose and will sink to the floorboard.

Today I was pulling up on a red light and went to brake and the pedal had NO pressure AT ALL. The brakes were completely ineffective. I had to downshift and yank the parking brake in order to stop.

It is time I get this taken care of before I cause a wreck. I had the brakes bled when the problem started and no air was found in the lines. This leads me to either a bad master cylinder or bad brake booster... any ideas what to look for?

thanks!

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Unread 03-19-2010, 08:34 PM   #2
XTC Jpr13
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2000 TJ Wrangler 
 
Join Date: Jan 2005
Location: East Stroudsburg, PA
Posts: 546
check the vacuum line connected to the booster as well.
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Unread 03-19-2010, 08:42 PM   #3
MikeUnlimited04
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2001 TJ Wrangler 
 
Join Date: Oct 2007
Location: Seymour Johnson AFB, North Carolina
Posts: 361
Quote:
Originally Posted by XTC Jpr13 View Post
check the vacuum line connected to the booster as well.
will do in the morning! thanks!
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