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Rough Idle - Have Tried Just About Everything - Stumped!


NickBA-XR6T

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  • Member For: 13y 8m 17d
  • Gender: Male

To check if it the booster causing bad brakes you need to clamp off all brake calipers. First two or so pumps of the pedal with the car off will determine If its causing the bad brakes ( still sh*t pedal)

The check if the booster has a vacuum leak ( normally associated with bad brakes, but not always) spray solvent or a similar product around the booster and associated vacuum lines. If the revs increase periodically or it splutters a bit you have found your problem.

Sometimes you can hear a loud hissing noise of the vacuum pulling the solvent in.

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