LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

idle prob - sound like bad TB bearings?

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Old 06-23-2006, 10:58 PM
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idle prob - sound like bad TB bearings?

k- i think ive finally narrowed it down... for life of me cant get my idle to stay steady at 850... finally after finding vacumn leak and cleaning the iac and the entire TB ive got her idling at 850....


that is untill i bring the rpms over 3k.. .then idle wont go below 1400.... looking to borrow friends TB end of week, but anything else i should be checking?
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Old 06-23-2006, 11:31 PM
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Re: idle prob - sound like bad TB bearings?

Can ya blip it real quick and it come back to an idle?
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Old 06-24-2006, 12:09 AM
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Re: idle prob - sound like bad TB bearings?

off and on - sometimes that helps and will drop it to about 1100... other times it does nothing-

tommorow ill get the idle high and try and push the throttle blades down and see if the rpms drop... guess that would answer my question...
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Old 06-24-2006, 01:39 AM
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Re: idle prob - sound like bad TB bearings?

Originally Posted by kingman109
off and on - sometimes that helps and will drop it to about 1100... other times it does nothing-

tommorow ill get the idle high and try and push the throttle blades down and see if the rpms drop... guess that would answer my question...
did u do the IAC mod on teh slp air foil?

i dont c that making it idle high but just a thought, hope u figure it out tho

good luck ken
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