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Old 08-18-2014, 09:47 AM
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Is it worthwhile to hook up a vacuum gauge to the intake manifold to see if there is

edIT: OK, to finish off the title... ...a vacuum leak?

I was thinking of doing this, but I had someone tell me yesterday that that would be pointless and that a smoke test is the only way to see if there are any vacuum leaks. Does this sound right?

(My struggles with the Buick continue...)
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Old 08-18-2014, 11:21 AM
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No, a vacuum gauge won't help you find vacuum leaks. Smoke test is the way to go. Is it the 3.1?
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Old 08-18-2014, 12:17 PM
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Quote:
Originally Posted by tjts1 View Post
No, a vacuum gauge won't help you find vacuum leaks. Smoke test is the way to go. Is it the 3.1?
Yes, and if you're getting at the intake manifold gaskets, I have those on hand and am planning on replacing them this week or the next .

I'm going to explore the fuel system first, though.
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1982 300SD -- 211k, Texas car, tranny issues ____ 1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod

2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."
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Old 08-18-2014, 01:22 PM
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Spray carb cleaner all around the intake gaskets. If there is a leak, rpm will change.
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