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Old 06-03-2001, 09:48 PM   #27
2FastLX
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Join Date: Feb 2001
Location: Mecca, Indiana
Posts: 1,419
Angry

All right. Now I'm really pi$$ed!

We checked everything we could think of over the last 2 days and we found a problem that is yet to be explained. My vacuum is only running 5 inches at idle
We checked the compression and it was between 140 to 150lbs. So we thought maybe it was because the rockers aren't letting the valves close all the way so we tested the compression with the car idling and it was fine. When you give it gas the compression drops to around 90lbs then goes back up at idle. Is that normal??

Any other suggestions on how to diagnose a low vacuum problem?

Thanks for all the help guys!!

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