Cold start problem, could use some help.

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Sep 8, 2004 | 11:07 AM

v8maro

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From: Commerce, MI

Cold start problem, could use some help.

Ok, this only happens when the car is first started and when cold. I'll start the car, the cam has a little surge to it because it's large, then I take off to go to work. Well, sometimes, not all, when I take off, the car falls flat on it's face, push the gas and it feels like a huge miss-fire, don't know how to explain it better, put the gas down and it studders, shakes, surges, clutch chatter, u name it. If i let off the gas and then rev up higher and pull the clutch out slow, it will barely surge, then get going. After a few minutes of driving, the car starts to behave like normal.

I want to check a few things and I want to see what you guys have to say:
Plugs, are they fouled? Oil covered? - will check.
How can I check to see if it's my clutch that is bad?
Could this be fuel pump/filter related?

Any other ideas you guys think I am missing?

Car doesn't seem down on power so I dont think it's a spring or pushrods.

thanks
-Steve

Sep 8, 2004 | 06:18 PM

v8maro

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From: Commerce, MI

anyone?

Sep 8, 2004 | 06:34 PM

Scalpel

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From: Lexington, Ky

Oxygen sensor.

Sep 8, 2004 | 06:41 PM

v8maro

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From: Commerce, MI

Hrm, didn't think of that one. What puzzles me is that no codes are going off, that makes me think the clutch could be the problem

Sep 8, 2004 | 06:47 PM

Scalpel

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From: Lexington, Ky

It's not the clutch.

What you described is what I have seen on 3 different LS1 cars, they didn't throw codes for the O2, either.

Sep 8, 2004 | 06:50 PM

Scalpel

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From: Lexington, Ky

If you want to test the clutch. Get on the highway, get to 55-60MPH in 6th gear and punch it. If the RPMs don't shoot up then your clutch is most likely fine.