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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
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Replying to: jasonkarch (May 13, 2008 7:33 pm) 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... |
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ok thank you very much guys i wil look into it this weekend any certin plugs you guys recomend????????????
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Replying to: jasonkarch (May 14, 2008 8:05 pm) |
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Replying to: 442dude (Apr 25, 2008 9:42 am) The missing and consequent stalling does not seem to be getting worse and maybe its even stalling less now, but it sure is not over. IF it persists much longer, I'm going to try removing the wire from the spark plug on that number one cylinder to see if it suddenly gets more noisy or not. I know a bad coil is rare, but its possible.
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Replying to: fleastiff (May 21, 2008 11:27 pm) It still makes an awful racket while backing up though. I conclude that the various fuel-injector treatments have helped but not yet cured the problem. I intend to continue with the two remaining bottles that I have and then will see what my options are.
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Replying to: fleastiff (May 29, 2008 3:36 am)
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Replying to: 442dude (May 29, 2008 4:43 am) That has been my secret fear: that if one or two bottles didn't cure it, ten additional bottles won't cure it either because its more than just a clogged nozzle. >pull the spark plug on the cylinder that's misfiring and see how it looks Well, I can look in the owner's handbook to figure out which cylinder is number one and I can compare that new plug to nearby and equally accessible spark plugs or just look at it and try to figure out if it looks clean or fouled or what. Its going to be a real project though ... no wrenches much less spark plug wrenches. A pair of pliers, a hammer, some socket wrenches ... thats about it.(And it would probably take me an hour just to find where those tools have wandered off to).
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Replying to: fleastiff (May 29, 2008 6:00 am) Most service manuals have a picture guide to let you know what is going on with a spark plug based on what it looks like so you don't have to compare it to others...I'm sure you could find the pic online but getting to the plug would be your 1st challenge anyway. The condition of a spark plug tells a lot about how the engine is running...if the injector is leaking through, the plug will be full of carbon, if its clean & dry, its not seeing much fuel... The more I read, the more it tells me that you need to pull the plug and see what's going on in there to find out the issue without guessing any more...the other check would be to check the resistance of the injector with a multimeter to check its electrical condition...I don't have the specs in front of me, would have to look them up later...
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Replying to: 442dude (May 29, 2008 6:49 am) I have a feeling that this means loosening engine mounts or something like that and then re-tightening them. This might be beyond the limits of my tools-on-hand, physical strength and courage. >the other would be to check the resistance of the injector with a multimeter Now that sounds like its a bit less arduous a task. Does one do this while the engine is running? How do I get the fuel injector naked so it can be tested? |
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I have a 98 venture that has developed a bad misfire. I scanned it and all 6 are misfiring at different times. You can be driving and try to hold a speed and it goes to misfiring. Speed up quick and the misfiring goes away. Tested ignition mod. and orielly says it is ok.
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