Question about 2002 Chevrolet Venture

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I have a 2002 chevy venture van it runs but backfires thru the exhaust was running fine but not now. Idles really rough use to just do it when the underside got wet

Posted by Geannie Havens... on


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First have the computer scanned . Most part houses will do it for free. The miss fire codes will tell you where to look. It can identify which cylinders are miss firing or not firing at all. Identify the bad cylinders and pull the spark plugs and run a compression test on them to make sure they are ok. No compression means a problem like a burnt valve. Make sure that the firing order of the plugs are correct.

Posted on Aug 01, 2019


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SOURCE: Running rough and stalls during wet weather otherwise runs fine.

Your ignition coil is cracked. Replace it with a new OEM unit.

Posted on Jan 12, 2009


Richard Scordino

  • 6982 Answers

SOURCE: my 2003 chevy venture idles rough when i starts

"trick" spark plugs are just that. You can only make one spark at a time so therefore regardless of the number of contacts, that's all you spark. Put the right ones back in and make sure you have the right wires on the right plugs.Also make sure you didn't disconnect any vacuum hoses while you were working!

Posted on Oct 07, 2009


  • 112 Answers

SOURCE: rough loud engine sound when van idles

sounds like your lifters

Posted on Dec 05, 2009


  • 15 Answers

SOURCE: car idles and runs rough intermittently after engne is warm.

one of you air line pipes could have collapsed or split which will cause a problem with idling and performance and it will give no smoke signs

Posted on Feb 13, 2010


Ray Wagner

  • 2 Answers

SOURCE: 2002 chevy trailblazer has rough idle

There are numerous things that can caise a vehicle to idle rough. Could be a throttle posistioning sensor. pcv valve, dirty fuel filter, worn spark plugs and wires, possible O2 sensor. If the vehicle has not had a tune up yet, I would recomend one. Even if it doesn't fix your issue, the vehicle is ten years old and probably needs on anyways. Start there, then rule out the cheaper stuff next. pcv valve and fuel filter, inexpensive and it's probably time anyways. If you are getting an engine code, stop in to advance auto. They'll plug it in for free. If your still having problems, you may have to break down and tajke it to a mechanic to get plugged into a real diagnostics machine.(probably run you around $100)

Posted on Feb 12, 2012

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For this types of problem,there are few help inks to troubleshoot the problem.Click the link below to go through the troubleshooting procedure to resolve the issues :----Idles rough and quits when gas pedal is pressed less? idles rough?
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My 2003 chevy venture idles rough when i starts

yes if it didn`t do it before you replaced with the different plugs

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Chevy 350 express van 2000 runs great idles rough

If it does not do it in park or neutral, it could be a number of things. One being a sticking Torque Converter Clutch solenoid (TCC). It could be that it needs a simple tune-up. How often does this problem happen?

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Venture van started running rough and barely starts

It sounds like you caught the fuel pump just in time. I would take it to you local mechanic to check it out.

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