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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: tattooedflesh (Jul 14, 2007 6:19 am) |
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Replying to: demonfatcat (Jun 29, 2007 2:01 pm) |
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Hi, guys. I'm new here but I'm hoping someone will help me with my Venture '98. It all started about a month ago with a P0302 and a camshaft sensor fault codes.The van was running rough and barely stayed alive at idle. Long story short, I fought with it and replaced the CS sensor and spark plugs and wires.It ran fine for about 3 weeks until last week when it started with this Cylinder no. 5 misfire code.It is running like on 5 cyl. instead of 6, no backfire though.When I had the cyl. 2 misfire , just changing the spark plug seemed to make the difference.Unfortunately I would have to rotate the engine again to get to no.5.I remember I really made sure all plugs and wires on the back side were fitted perfectly, knowing that it would be tough getting to them again. Today I checked the air filter and it was not blocked or dirty; also did a vacuum test and came up with perfect results, which is kind of weird considering how rough it's running... Anybody have any ideas where I should go from here? Thanks in advance for any help... |
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Wife hit a curb...Check Engine Light came on...I rechecked the O2 sensors (just replaced within 5 mos) and mechanic checked O2 and said it was fine...They think it is ECM/PCM. Any thoughts or am I out $500 when I have to go get an emissions test to replace?
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Replying to: zeke41 (Jan 04, 2008 6:54 pm) |
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2000 Chevy Venture. Suddenly the ServiceEngineSoon light started flashing and engine was running rough, particularly at slow speeds where the light would stay steady-on rather than flash and engine would almost 'die' at a stop light but ran reliably at freeway speeds with no indication of overheating or smoking at all. Added a few gallons of higher quality gasoline and drove to a quick oil change place where the mechanic broke the positive battery post because he refused to use the Remote Positive Terminal for the battery check. Engine would not start and car was towed to mechanic who replaced wiring and replaced spark plugs which had been in bad shape and had very wide gaps. Now cylynders 1 3 4 each misfire and have less than 100 lbs compression, all others have 150 compression. Runs much better but mechanic thinks there was recent overheating and I need a new engine. I'm not doing the 'new engine' when its running well even if it misfires alot. Temperature guage had not indicated overheating when this started, though I had added a cup or so of Prestone coolant a few weeks earlier when I noticed the plastic chamber was empty. Anyone have any ideas as to what is wrong with it? And what I should do???
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Replying to: fleastiff (Apr 21, 2008 10:31 am) First of all - people who work at quick oil change places are not mechanics...let them change the oil and MAYBE replace your air filter...that's it... How many miles on motor? What were the codes that set the service engine soon light? The blinking ses light meant a severe misfire condition which can damage the cat converter...Need the other codes to help you further...misfire codes are not always a big deal...autozone will read them for free, then post them here...Is the light still on? Any sign of coolant in engine oil???? How is it running now???
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Replying to: 442dude (Apr 21, 2008 12:12 pm) Yeah, their guy did a 'free battery check' without realizing their is a Remote Positive Terminal. >How many miles on motor? 72,000 or so. >What were the codes that set the service engine soon light? I don't have a Secret Decoder Ring. Are the codes displayed somewhere? Mechanic didn't say nuttin' 'bout no codes. >Is the light still on? Only when the engine runs. >Any sign of coolant in engine oil? Not that I know of, but since quick lube placed did the oil change they probably wouldn't have even noticed. >How is it running now??? Runs better than it did but it still misses on 1,3 and 4cylynders. Mechanic still wants 4,500 for a new engine installation which I think is uncalled for when its not yet given up the ghost.
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Replying to: fleastiff (Apr 21, 2008 1:15 pm) check your oil - if it looks like a chocolate milkshake, its got coolant in it....if so...start saving up.... there are no shortcuts....you need the codes to determine what the car is trying to tell you is wrong, then you might be able to come up with a fix and deal with the problem...the stored codes are what tells your dashboard to light up the check engine light to let you know there is a problem...until you get them read and post, not much anyone here can tell you with any degree of intelligence...
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