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Old 11-10-2010, 07:12 AM
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Brake issues

I have a 98 sport that I have been working on for a while now and have gotten to a problem that I have no idea how to months ago I swapped in a 8.8 and prop valve from a grand cherokee and life was great. I lost the dash brake light but I was not too concerned. (It would not come on with the parking brake either) For the past week the brake peddle makes a slow fade to the floor if I make any foot pressure changes. It starts out normal but will fade if the foot pressure changes at all. Iam almost sure this is two different issues. I checked manafold vac. pressure and it is 18IN all day long. (sounds good to me) My guess is booster but I am not sure. Any suggestions will be most appreciated. Mike
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Old 11-10-2010, 07:49 AM   #2
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X2 on the booster

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Old 11-10-2010, 08:00 AM   #3
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Sounds like your master cylinder is bypassing.
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