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Guest Message by DevFuse

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Vacuum test for restricted exhaust

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1 reply to this topic

#1 frag


    Soob shade tree mechanic

  • Members
  • 1,777 posts
  • Montréal, Québec, Can.

Posted 28 September 2003 - 12:01 PM

A few days ago I promised someone (searched for the post but did'nt find it) I would post the procedure to test for a clogged converter with a vacuum gauge.

I'm finally back home so here it is:
Connect the gauge to the intake manifold (dowstream from the throttle).
«Run the engine at about 2500 rpm for about 15 seconds. If vacuum drops during the period and does not incrase when you close the throttle, you're almost certainly looking at a restricted exhaust.»
Hope that's not to late to help.

#2 93leg


    USMB Regular

  • Members
  • PipPipPip
  • 37 posts
  • Hanover, PA

Posted 30 September 2003 - 11:46 AM

Well, I'm going to give it a try once I find a good vacuum gauge. I hope I can soon find something, because winter is approaching and I don't have a heated garage. Thanks Again.

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