Question about 2004 Chevrolet Silverado 1500 Crew Cab

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Just revived an 87 chevy G20 that had been sitting for years. what is the best way to burn out/remove carbon build up in motor?

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  • jacob wilson
    jacob wilson Oct 18, 2013

    only 60,000 original miles. sat for approx. 2 years

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  • 379 Answers

First of all if its been sitting for a long time you wanna drain the gas tank and put new gas in it then change the oil unless it hasnt been siting for to long anyway the way to get anything out of your engine is to pull the spark plugs and crank it over if anything is in the block the compresion of the engine will spit it out

Posted on Oct 18, 2013

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Posted on Jan 02, 2017

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SOURCE: Electronic Control Module Installation 1994 G20 Chevy Van

I just had the same problem. If it is a regular van try under the driver seat in a plastic box. If it is a conversion van try in a pannel just behind driver seat on side of van wall behind a pannel that looks like a vent.

Posted on Apr 09, 2009

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SOURCE: best way to remove and

Not sure which one you need to replace (there are several but the r&r is the same. Welsh plugs are generally not easy to get at. Removal is simple....take a screwdriver and put it into one side of the cup and strike the back with a hammer and the plug will turn sideways. You can easily grab it with pliers.
You need a straight shot at it to install the new one. Usually you can put a large socket inside it and drive it in. If you cannot get in there to do that you can use a rubber replacement plug. Just put it in the hole and tighten the nut in the center. The plug will expand and seal. As far as objects in your way, if you can't get in there with either method, you will need to start removing things 'till you can.

Posted on Feb 27, 2011

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