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post #1 of 5 (permalink) Old 06-06-02, 08:13 PM
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frown Brake problems

I've finally got the car back on the road after undergoing a bare metal respray. Before I took it off the road, the brakes were getting dodgey. They are now pretty bad. When Im driving normally (eg 30 mph) the brakes work fine, except for the last little bit of stopping (<10mph); I have to put an excessive ammount of force to stop. When moving around slowly (eg backing out of my driveway) the brakes are terrible all the time, and the ammt of presure required to stop is silly.

Some background:
Granada disc conversion.
Vacuume booster, dual m/c.
RPM's fluctuate (rise) when the brakes are lightly applied in neutral gear while sitting stationary.
This problem was occuring just before taking it off the road, I had just forgotten how bad it was.
Thanks in advance for your help.
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post #2 of 5 (permalink) Old 06-06-02, 09:12 PM
Poor IT guy
Homer?'s Avatar
Join Date: Jun 2001
Location: Perth WA
Age: 35
Posts: 506
Might have moisture in the brake fluid.
How long was the car off the road for?
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post #3 of 5 (permalink) Old 06-07-02, 01:07 AM
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4 months. It was garaged the whole time
post #4 of 5 (permalink) Old 06-07-02, 07:22 AM
Stand clear: 5.0 in use!
V8 Ghia Mike's Avatar
Join Date: May 2002
Location: Adelaide, South Oz
Posts: 150
This problem sounds like a leaking diaphragm in the brake booster. I just replaced the one on my girlfriend's Golf and it caused all the symptoms you have described. The vacuum leak causes the engine RPM rise and the brakes to lose their power assistance.

Get it checked out by a brake specialist. NOW!


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post #5 of 5 (permalink) Old 06-26-03, 04:05 AM
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Yep definately sounds like a booster problem, if its not a leaking diaphragm you might need to add a vacuum tank.
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