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cold start issues. can't find a deffinate cause 

 

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 Post subject: cold start issues. can't find a deffinate cause
Posted: Sun Feb 04, 2007 2:31 am 
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just first thing as i pull out of the drive in the morning, if i dont give her the beans and keep the revs up, the engine stutters and chugs a bit. while idling its fine and rev the engine to the s**t house and its fine. drive off? same thing.

i just replaced the oxy sensor (unrelated) and a week later when the problems happened a cracked spark plug (piston 3) and replaced the leads yesterday and found lead 3 had infinite resistance (not working).

i haven't noticed any big power drop or anything and when its hot she's fine. its not the head gasket either. also experiencing slightly higher and lower voltages than usual at start. ??? other then that the gear changes are sometimes a little more rough then i remember but maybe because the engine isn't putting out the best power. fuel economy is still good too.

how hard is it to blow a dissy in an EL? reset the ecu? s**t injector? i know its not the head gasket.

 

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Posted: Mon Feb 05, 2007 9:27 pm 
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bump. someone must have an idea?

 

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Posted: Mon Feb 05, 2007 9:31 pm 
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how old were the leads ?

 

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Posted: Mon Feb 05, 2007 9:33 pm 
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they were stock with 76000. resistance was good except for piston 3 that was shot.

its got brand new leads on it now

 

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Posted: Mon Feb 05, 2007 9:35 pm 
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& how old were they before ?

 

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Posted: Mon Feb 05, 2007 9:37 pm 
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yeah, the old ones on the el were 8 years and the new ones came in the top gun box. brought them last week

 

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Posted: Mon Feb 05, 2007 9:41 pm 
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prolly just a shot lead.
my car sometimes runs so bad cold it won't go up hills, just needs warming up on cold mornings which you would already be doin to avoid engine damage wouldn't you ;) ?

 

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Posted: Mon Feb 05, 2007 10:50 pm 
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no, they are brand new leads i just put on. it deffenetly not the leads

 

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 Post subject: Re: cold start issues. can't find a deffinate cause
Posted: Mon Feb 05, 2007 11:02 pm 
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fiftyone wrote:
its not the head gasket either.

I love it when people say that...
Why so sure?

 

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Posted: Mon Feb 05, 2007 11:08 pm 
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your headgasket may be weeping a small amount of coolent into the cylinder(s) over night. hence why you don't expereince any issues once warm

 

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Posted: Tue Feb 06, 2007 12:50 am 
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i know what it would do. ive had a hydrocarbon test done on the system. i know the mechanic and he said 'deffinetly no hydrocarbons'

as much as i'd like to think its not the head gasket its looking like it is, i know. but that test has given me a little shread of hope. so im trying to be optimistic.

plus, it would run rough from the start yeah? ive sat there for a minute revving the s**t out of the engine and it doesn't miss a beat. drive down the road, still does it. so im thinking something else.

 

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