Idle Problem

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Jan 19, 2009 | 04:56 PM

christrusler

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Idle Problem

i have a 2000 camaro z28, today i was pulling onto the road, gave it a little gas, car took off, then started sputtering, then engine died, i coasted off the road, car didn't want to start, finally got it started, i have to hold the gas about half way down to keep it idled, and running, once i let off the gas the car dies.... Any ideas ?? Please help this is my DD

Jan 19, 2009 | 05:06 PM

coolformula

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MAF, TPS, IAC.

Need to check the codes.

Jan 19, 2009 | 05:16 PM

christrusler

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what is IAC ?

Jan 19, 2009 | 06:27 PM

LS6427

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Idle Air Control

Top sensor that screws onto the TB on the drivers side. Two hex screws hold it on and it has a plug into it.

Jan 19, 2009 | 07:43 PM

christrusler

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on another forum someone mentioned they thought it might be the fuel pump ,?

Jan 19, 2009 | 07:56 PM

LS6427

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Fuel pumps do fail slowly sometimes and not all at one time. Does it prime when you turn your key to the "on" position?

If it starts the pump is working at some level. I'd lean more toward a dirty fuel filter or injectors, but you never know.

Howl ong has it been since you changed the filter?

No SES codes? A failing Crank Shaft Position sensor can do that to the engine too. Get a scan for free at Advance Auto or PepBoys.

Jan 19, 2009 | 09:08 PM

christrusler

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changed fuel filter in july, i can hear the pump priming, a buddy came over, and we can hear a noise at the engine, i'm going to check the push rods, valves tommorrow morning

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Jan 20, 2009 | 01:50 PM

LS6427

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Quote:

Originally Posted by christrusler

Pulled the valve cover, found a valve retainer or "keeper" came off #4 , pushrods look fine, rocker's look fine.

Just ordered the keepers 0.19 cent part is holding me down

You think that caused all that stuff.

Jan 20, 2009 | 04:10 PM

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christrusler

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parts come in , in a couple hours, will post the results

Jan 20, 2009 | 09:33 PM

#11

christrusler

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Got a bent valve, got to pull head

Jan 24, 2009 | 06:21 PM

#12

christrusler

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Pulled the head, had a bent valve, replaced the valve, also had a bad lifter. All is good !!!! Before, the car had a knock to the engine... and it's GONE... Sounds beautiful