engine pop

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Oct 6, 2003 | 06:03 PM

thinksnow

Thread Starter

Tuned

Joined: Sep 2003

Posts: 491

Likes: 1

engine pop

Once in the while just after I start my engine I hear a pop from the right side of the engine. It only does it once the everything is normal. Any clue?

Oct 6, 2003 | 06:49 PM

Oneof6

Senior User

Joined: May 2002

Posts: 290

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From: Birmingham, Al U.S.A.

Internal damper door shuts when the temp control is set in AC mode and all the vac has leaked off. Takes a few seconds for the vac pump to get going after you start then it thumps. Normal, if it bothers or startles you just put the selector in OFF when you shut down for the night.