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tim · 01-22-2006

It would probably be better to do a leak down test if you cant get the car up to operating temps first. A leak down test will give you more information too if there is actually a problem.

And yes, you are supposed to hold the throttle plate wide open when you do a compression test.

01-22-2006	#2
tim .. Join Date: Oct 2005 Location: Mondovi, Wi Posts: 1,326	Re: Lame'O compression test question......? It would probably be better to do a leak down test if you cant get the car up to operating temps first. A leak down test will give you more information too if there is actually a problem. And yes, you are supposed to hold the throttle plate wide open when you do a compression test.