2nd Gen. Dodge Ram - No Drivetrain Discussion for all Dodge Rams from 1994 through 2002. Please, no engine or drivetrain discussion.

brake pedal drifted down

Old 11-09-2002, 10:18 AM
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brake pedal drifted down

I got the old pedal drift this morning after idling for a few seconds waiting for a prking spot. I was backing in and the pedal slowly went down. I see these dodges don't have the GM hydro boost set up so am i to assum that the maste cylinder is going bad ?? thanx , DAVE
Old 11-09-2002, 11:41 AM
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Re:brake pedal drifted down

Well, I have been told that the &quot;drift&quot; is normal with the diesel. Anytime that I hold my foot on the brake, it will go slowly to almost the floor. A mech told me that this was normal...something to do with the vaccuum boost and the ABS, I think.<br><br>Frightened me the first time, too.<br>george
Old 11-10-2002, 12:02 AM
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Re:brake pedal drifted down

well I thought it was just me it happened to because I replaced my master cylinder to no avail...<br> If you wait afew seconds the vacuum builds up and the light shuts off.<br> I'm just wondering if there is a exhaust port on the vacuum pump that gets clogged up to reduce the rate at which the vacuum builds?
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