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Re: GM 3400 spark plug deposit
Posted to Technical Discussion Forum on 8/21/2005 6 Replies

Hi Again, The oil sucking venture was in Friday with 1300 miles added since the original post. I blocked off the PVC, breather, and dipstick tube with a vacuum/pressure gauge. At idle the gauge stayed at zero. Repeated revs slowly brought pressure to 1 &1/2 ps... Login to read more.

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