Motor bad already!!!!

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Dec 23, 2011 | 11:53 AM

#51

mongorat427

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From: pittsburgh

Quote:

Originally Posted by Gremlin85

Okay. Now that's cleared up

Sounds like a spun rod bearing. Put your stock ecu back in, drive it for a day and then take it back to the dealer.

I agree.

Dec 23, 2011 | 12:21 PM

#52

sLAsh

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From: Burlington, Ontario

Quote:

Originally Posted by Gremlin85

I think it might be faint enough that he can't hear it while in the car driving.

aahh, that makes sense now.

Dec 23, 2011 | 01:38 PM

#53

Mike08ss/tc

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From: Plattsburgh, NY

Just my luck. I guess it will be time for motor build but got to get my fbody back together first.

Dec 23, 2011 | 01:54 PM

#54

Matt M

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From: Grand Rapids, MI

I would put an oil pressure gauge on the motor to see if the pressure is too low at idle. There could be an issue with the oiling system allowing oil pressure to bleed off unless the RPMs are increased.

Also, you need to determine if the noise is louder or quieter with rpm and with/without load. Also, rule out the flywheel if possible.

Dec 23, 2011 | 07:37 PM

#55

tomj77

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From: canada

maybe its a bad strut. lol

Dec 24, 2011 | 11:23 PM

#56

RyRidesMotox

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From: Carlsbad, CA

Quote:

Originally Posted by mikej

stop using cheap home made tunes and you wont have this problem...why didnt you go with gm stage 1 kit and still be warrantied

That is some funny **** right there... lol... yea throw a GMS1 tune on something that has more knock that any half way decent aftermarket tune would have.

Quote:

Originally Posted by Mike08ss/tc

The shop foreman knows what is done to my car. The knows is not heard when the car is being drove only when sitting with car idling around 1800

1800rpm idle? must be the WOT BOX.... ok ok I kid.

Maybe try tossing it on a dyno and stand next to it... you might be able to hear it better that way. But as everyone said already, if you spun a bearing, its an oiling issue. If you take it in and they find out you ran the wrong oil, your screwed. They wont warranty it.