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Vans & Minivans Chevy Venture Chevy Venture Check Engine Light, Misfiring
85 messages, Last post on Apr 13, 2009 at 7:20 AM
You are in the Chevy Venture Forum. Your Host is Karens
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Replying to: fleastiff (Apr 22, 2008 7:03 am)
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Replying to: 442dude (Apr 22, 2008 7:29 am) It seems you may indeed be correct. The Autozone guy said there were two codes: P0301 and P0301-Pending. >I really find it hard to believe that your motor is shot based upon the info so far Yes. I'm a bit doubtful too. Worried about it though. Surely a coil sounds cheaper than a new engine. I got new wires and new plugs and a tune up, but I don't think that included a new ignition coil. Things like crankshaft sensors and cam sensors and timing chains are beyond me though, but even those things sound cheaper than a new engine! |
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Replying to: fleastiff (Apr 23, 2008 2:31 pm) So there's only a misfire on 1 cylinder...not 3...Here's what I think: 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... 3. PCM - the computer could be fried...but I doubt it... 4. Bad head gasket...but you already said before that your oil looks good with no coolant in it so I doubt this one too... I wish you the Best of luck...the more I research, the more it leads me towards the fuel injector or the ignition coil for cylinder # 1...the Venture has 3 coils...I hope I have helped, even just a little... John
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Replying to: 442dude (Apr 23, 2008 3:38 pm) New Clue: At slow speeds and just after starting it is noticeably misfiring but as soon as I shift into REVERSE, boy does it get worse!! Far, far noiser and much more vibration! Now I don't know if its relevant or not but one of the occasional drivers of the vehicle does have a habit of shifting from reverse to drive while still slightly in motion! (Yeah, I hate it. Don't think its a good thing to do. Don't know if its relevant to this problem though!). I wonder if the AutoZone giving the codes only for Cylinder 1 means that Cyliners 3 and 4, which also had compression of less than 100 when tested, are now improved? For various logistical reasons, I've not yet been able to get a tank of high-test into it yet, but will do so ASAP.
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Replying to: fleastiff (Apr 25, 2008 9:34 am) While shifting into drive while the car is still moving into reverse is typically not a good idea, I don't think that it caused this problem... It makes sense that reverse would amplify the problem as reverse is ofter a "higher" gear than 1st gear so the misfire would be more obvious. cylinders 3 & 4 have probably not improved but the car should still run acceptably even with compression numbers that are varied...
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Replying to: 442dude (Apr 23, 2008 3:38 pm)
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Replying to: ul00173 (Apr 25, 2008 7:39 pm) A sequined yellow top worn by a cute model; A Fuel Additive concentrate; A Fuel Injector Cleaner. I've figured out I should use the Fuel Injector Cleaner. Sure sounds like its going to be a cheaper solution to go to an auto parts store and buy the Techron stuff than to pay 4500 for a new engine. Thanks guys. I'll let y'all know what happens. In reading about that Techron Fuel Additive Concentrate, I saw mention of a claim that it also cleans the Fuel Sender. As I've had a wildly variable fuel guage for a long time, this product too might be a sensible thing to try as well. |
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Replying to: fleastiff (Apr 21, 2008 10:31 am)
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Replying to: ul00173 (Apr 25, 2008 7:39 pm) Thanks for all your help on this ... I sure prefer buying a double pack of STP Fuel Injector Treatment than paying 4500 for a new engine! |
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Replying to: louied87 (Apr 26, 2008 7:53 pm) |
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