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Joined: Aug 2011
Posts: 4
Jason_Oh
New Member
Jason_Oh Aug 5, 7:54am - #446794 
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Joined: Aug 2011
Posts: 4
California
Engine sounds like a diesel when under 3k rpm?

Hi, so i bought this used celica GTS several months ago. phenomenal car...everything's in pretty good condition. Except i've noticed that the engine seems to make this diesel engine noise when revving under 3k rpm for gears 2 and up unless i accelerate SUPER slowly.
It makes the sound in 1st gear until like 1500 rpm also.

The sound's been progressively getting worse.

i've done an oil change (mobil 1 synthetic extended) w/ mobil 1 filter, and seafoam. I don't know if it always sounded like that because maybe i was too excited and didn't notice before. But i don't remember hearing anything like that. It first started sometimes, and now it does it almost frequently. But it's also weird because sometimes it doesn't make the sound at all.

Anything above 3k rpm and it sounds normal.

Thanks!
Joined: Aug 2011
Posts: 4
Jason_Oh
New Member
Jason_Oh Aug 11, 3:32am - #446981 
New Member

Joined: Aug 2011
Posts: 4
California
BUMP!

No one knows what' i'm talking about?
Joined: Oct 2011
Posts: 9
celica123
Member
celica123 Nov 14, 5:07am - #448560 
Member

Joined: Oct 2011
Posts: 9
USA
it could be bad oil, or sluges start to build by in the engine head. hope this help
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