Question about 1989 Chevrolet G20

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Replaced cylinder heads now van wont start! - 1989 Chevrolet G20

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You did something wrong, probably timing chain or valve adjustments

Posted on Jun 05, 2010

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SOURCE: my 2001 ford transit van wont start, i have

check if the coil is supplyin current to the engine or check ur timing belt

Posted on May 03, 2010

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You may have a warped head and a blown head gasket allowing water into a cylinder. This will disable the spark plug. Remove the plugs to check for water on the tip. If there is any water or oil on it then you have a warped head.

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MORE LIKELY NEED A DRB SCAN TOOL TO RELEARN CAMSHAFT POSITION SENSOR BECAUSE CMP SENSOR IS IN THE CYLINDER HEAD.ANY TIME CMP DISCONNECTED.YOU HAVE TO RELEARN CMP POSITION SENSOR TO THE PCM.CODE SCAN A SEE WHAT FAULT CODE YOU ARE GETTING.

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My 1995 chevy van with a 305 eng. starts good get up to25 to 30 mph start to bog down bad at frist i thought it was leaking antifreeze but no little water coming out of tail pipenow my van runs bad when...


check the vans oil to make sure the oil is not foamy or has a whitesh color to it, if so, then it is getting antifreeze into the oil, but if the oil checks out fine, then remove the spark plugs 1 at a time , and examined them to make sure they don't have any antifreeze on them, while you have the plugs out, give each cylinder a compression test to see if any of the cylinders have low readings, if so, and the other cylinders had good readings, then i would suspect a blown head gasket, or a cracked head, or block, also if all of the above checks out ok, then i would check the fuel filter, and if it hasn't been replaced, it could be stopping up on you , and not allowing the proper amount of fuel to be properly distributed to your vans engine. hope that this information has been helpful to you.

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