Chugging noise at start up

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08-26-2001, 06:18 PM

MacGyver

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Join Date: Dec 2000

Posts: 373

I posted this problem a couple months ago...no one really knew what it was and appartenly niether do a few mechanics...

when i start the car after it's been sitting 8+ hours, it makes a chugging noise until the engine is warmed up...it sounds like a bad valve tap, but only for a few minutes until it gets warmed up. The drive belts were replaces 8 months ago...i brought it to a couple mecahnics (one is usually real good) but they said they didn't notice it or it's normal, but it never made this noise before and i don't know why it would start now...

one more note...it's a 97 max and i'm coming up on the 120k service...i switch to sythetic oil at 100k

08-26-2001, 06:35 PM

Sonic

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Location: Westchester County, NY

Posts: 8,765

That noise is coming from the passenger side of the engine near the cylinder banks? Sounds like the timing chain to me. Try a heavier oil and see if it disappears.

08-26-2001, 06:55 PM

MacGyver

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Quote:

Originally posted by medicsonic
That noise is coming from the passenger side of the engine near the cylinder banks? Sounds like the timing chain to me. Try a heavier oil and see if it disappears.

yea...it's coming from the passenger side...seems like it may be coming from somewhere by the drive belt...i use 5-30 now...you think 10-30 would help or maybe the timing chain is getting worn?