Trouble

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05-22-2010, 11:59 AM

Ryan hilsgen

Newbie

Thread Starter

Join Date: May 2010

Posts: 3

Trouble

My lt1 is idling up and down with nothing steady about it. Could it just be the spark plugs? I dont know any history on the engine

05-22-2010, 12:12 PM

craby

April 2011 ROTM

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Join Date: Mar 2009

Location: Tokeland, Washington

Posts: 21,645

first good step is to have it scanned for trouble codes. what yr car?

05-22-2010, 11:47 PM

95slvrZ28

Overdrive Member

Join Date: Aug 2006

Location: Boulder, CO

Posts: 4,496

My initial thoughts would be the IAC or the TPS. If you have any codes, like Craby suggested, you should get them scanned.

05-23-2010, 07:46 AM

Grandpaswagon

2nd Gear member

Join Date: Dec 2009

Location: Goldendale, WA

Posts: 711

And there can be codes stored without the SES light being on.

05-26-2010, 06:28 PM

rwing7486

1st Gear Member

Join Date: Jun 2006

Location: Rochester Hills Michigan

Posts: 162

has the SES light come on ever before? like when this first started happening? even if your SES light came on and turned off, your computer will store that code and you will be able to see any codes u have thrown

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