LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

What are the symptoms of a bad egr valve??

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Old 07-17-2003, 03:14 PM
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What are the symptoms of a bad egr valve??

b/c it seems like my passenger one has a ticking noise to it and my car has a weird stutter cruisin around town sometimes so any ideas
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Old 07-17-2003, 03:23 PM
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I take it back its not the egr valve its the air diverter valves the things that have the rubber hoses on it that go ontop of your manifold or headers
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Old 07-17-2003, 03:40 PM
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If the AIR pump were to run in closed loop somehow, it would throw off your A/F ratio by a lot, as read by the O2 sensors. You'd run really rich.
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Old 07-17-2003, 06:30 PM
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well it runs good at wot just misses down low sometimes. Should i start by checking my gas milage?? I will be removing the air and egr soon anybody with any tips on that?
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Old 07-17-2003, 11:02 PM
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Re: What are the symptoms of a bad egr valve??

i had an egr valve go out and it caused the rubber hose connected to it to melt. then it started ticking. i have removed my egr system now. you will need some computer programming to turn off your ses light and get better performance.

mark
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