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Vacuum

Tiny
MAROHDC
  • MEMBER
  • 1988 OLDSMOBILE 98
  • 228,000 MILES
Hi I have an 1988 oldsmobile 98 and iwant to know why it idolates sumetime and sumetimes it dont I also dont know it has a vacuum leak so could you be able to tell me how to check the vacuum leak and where to look ok and I have another problem I would like to know why when I brake or before I brake all the way it has a little jump to it and at the same time it idolates to
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Wednesday, August 15th, 2012 AT 3:10 AM

1 Reply

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Often you can hear a vacuum leak at idle, it will be a hiss sound, you can listen with a piece of rubber tube to your ear and the other passing around inlet manifold gaskets and vacuum switches, if there is a leak you will hear it quite clearly, please describe the brake problem with a bit more detail, I don't quite follow what you mean by a little jump.
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Wednesday, August 15th, 2012 AT 8:01 AM

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