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clogged fuel filter?

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Old May 27, 2003 | 10:03 PM
  #1  
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Default clogged fuel filter?

I need help with a couple of problems that have occured after h/c work.
1. while car sits at a stop light the rpms would drop lower than 500 and then bounce back to 900(reprogrammed to 900)----- solution, GM fuel injector cleaner.
2. now it has a hard time starting again after sitting for a short time(gas station) it turns over but will not stay running?
Could it be a clogged fuel filter or bad throttle body?

The car runs great while driving, plenty of get up.
thanks Dave
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Old May 28, 2003 | 06:56 PM
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Default Re: clogged fuel filter? (NICEDRV)

Dave, I would give the fuel filter a try. You don't say how many miles on your car. Nice Vert, BTW! :thumbs:

You may also have a tuner (or you if you have the programmer) go through your settings again. These crazy computers :crazy: somtimes have a mind of their own.

Good Luck! :cool:
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Old May 28, 2003 | 08:13 PM
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Default Re: clogged fuel filter? (MYBLU71)

11,500 miles on the car. Yes I have contacted my tuner and will see him next week. Are there any relays that I should look at? I do not get any codes.
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Old May 28, 2003 | 09:12 PM
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Default Re: clogged fuel filter? (NICEDRV)

Don't think it's going to be a relay. Sounds like something A/F related based on what you're saying. Could be an individual injector leaking or "puddling" causing erratic idling and an over-rich conditon on re-start. Definitely get the diagnosis from your tuner as to what's goin on here in the air/fuel department.

Robert
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Old May 28, 2003 | 10:35 PM
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Default Re: clogged fuel filter? (LoneStarFRC)

thanks LoneStarFRC, I will mention it to my tuner.
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Old Jun 4, 2003 | 09:53 AM
  #6  
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Default Re: clogged fuel filter? (NICEDRV)

NICEDRV, be sure to give us an update on what you find... :yesnod: :yesnod:
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Old Jun 4, 2003 | 02:39 PM
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Default Re: clogged fuel filter? (LoneStarFRC)

Don't think it's going to be a relay. Sounds like something A/F related based on what you're saying. Could be an individual injector leaking or "puddling" causing erratic idling and an over-rich conditon on re-start. Definitely get the diagnosis from your tuner as to what's goin on here in the air/fuel department.

Robert
:iagree:
Also, usually when a filter goes (which is very seldom now days), at WOT the car will hesitate, but at normal throttle it runs good.
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