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Engine sounds like a diesel when under 3k rpm? #446794 Aug 4, 11:54pm Aug 4, 11:54pm
Joined: Aug 2011
Posts: 4
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Jason_Oh OP
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Jason_Oh OP
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Joined: Aug 2011
Posts: 4
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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!

Re: Engine sounds like a diesel when under 3k rpm? [Re: Jason_Oh] #446981 Aug 10, 7:32pm Aug 10, 7:32pm
Joined: Aug 2011
Posts: 4
California
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Jason_Oh OP
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Jason_Oh OP
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BUMP!

No one knows what' i'm talking about?

Re: Engine sounds like a diesel when under 3k rpm? [Re: Jason_Oh] #448560 Nov 13, 9:07pm Nov 13, 9:07pm
Joined: Oct 2011
Posts: 9
USA
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celica123
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celica123
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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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