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Chevy Venture Check Engine Light, Misfiring

85 messages,  Last post on Apr 13, 2009 at 7:20 AM

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What is this discussion about? Chevrolet Venture, Van


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#44 of 85
Re: 99 venture here [442dude] by jasonkarch
May 12, 2008 (5:18 pm)
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Replying to: 442dude (May 10, 2008 8:07 pm)

ok i came up the code po 304
#45 of 85
Re: 99 venture here [jasonkarch] by 442dude
May 12, 2008 (6:06 pm)
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Replying to: jasonkarch (May 12, 2008 5:18 pm)

PO304 - Cylinder # 4 misfire detected...Check these for cylinder # 4
 
fouled or bad spark plug
bad spark plug wire
clogged injector
ignition coil bad
 
good luck
 
 
#46 of 85
99 venture by jasonkarch
May 13, 2008 (4:46 am)
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ok i am some mechanicly inclined but not to sure on where clyinder #4 is is it in front or back i think its in back
#47 of 85
Re: 2000 CHVY VENTURE CHECK ENGINE LIGHT ON [442dude] by smpowe
May 13, 2008 (4:58 am)
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Replying to: 442dude (May 07, 2008 9:46 am)

Thanks for the advice. I will follow up and have the transmission fluid and filter changed.
#48 of 85
Re: 99 venture [jasonkarch] by 442dude
May 13, 2008 (5:50 am)
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Replying to: jasonkarch (May 13, 2008 4:46 am)

# 4 is the front middle - boy are you lucky...
#49 of 85
Re: 99 venture [442dude] by jasonkarch
May 13, 2008 (7:33 pm)
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Replying to: 442dude (May 13, 2008 5:50 am)

thank you very much guys i will look into it tomorrow and agian thank you. if it is the coil do i have to replace the whole thing??????/
#50 of 85
Re: 99 venture [jasonkarch] by 442dude
May 14, 2008 (11:58 am)
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Replying to: jasonkarch (May 13, 2008 7:33 pm)

There are 3 coils...without having the book in front of me, I'm pretty sure that you can replace only the bad one...
 
Usually the problem isn't the coil...check other things 1st
#51 of 85
Re: 99 venture [jasonkarch] by fleastiff
May 14, 2008 (12:51 pm)
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Replying to: jasonkarch (May 13, 2008 7:33 pm)

This upthread message shows a way you might use to test the coil:
1. - Clogged or dead fuel injector...no gas=no fire...
2. Bad coil - If you're getting fuel, I'm not convinced you're getting a good spark at cylinder # 1...if I remember right...the car idles very rough...take off the spark plug wire for cylinder # 1 and start the motor...can you tell any difference? If its no worse, maybe you've got a bad coil...
#52 of 85
99 venture by jasonkarch
May 14, 2008 (8:05 pm)
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ok thank you very much guys i wil look into it this weekend any certin plugs you guys recomend????????????
#53 of 85
Re: 99 venture [jasonkarch] by 442dude
May 15, 2008 (4:58 am)
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Replying to: jasonkarch (May 14, 2008 8:05 pm)

Nothing but platinum, preferably AC-Delco - you don't want to have to change these more than once every 100,000 miles...the P/N is in the owners manual...

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