2000 Chevy Venture Engine will not start

2000 CHEVROLET VENTURE
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OGB5
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Engine Mechanical problem
2000 Chevy Venture 6 cyl Front Wheel Drive Automatic

My Chevrolet venture will not start. the engine fan belt fell off because the harmonic balancer was bad. my mechanic welded part of the harmnic balancer, since then the engine will not start. I have changed the harmonic palancer and the crank position sensor yet the engine will not start. Electric current does not get to any of the spark plugs. What can i do
Sep 9, 2010 at 7:14 PM
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RASMATAZ
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CHECK FOR SPARK

If factory tachometer is connected to coil tachometer terminal, disconnect tachometer before performing tests. When removing spark plug wire from spark plug, twist and pull on boot. DO NOT pull on wire.
Using Spark Tester (J-26792), check for spark at each spark plug wire. Leave other wires connected while checking for spark. Check spark plug wire resistance on suspect wires. Ensure resistance is to specification. See appropriate SERVICE & ADJUSTMENT SPECIFICATIONS article.

IGNITION COIL POWER SOURCE
CAUTION:

DO NOT insert DVOM leads into ignition coil connectors. Connector terminals may be damaged. When using DVOM, ensure lead contacts front edge of terminals only.

Turn ignition on. Check ignition positive voltage circuit of ignition control module for battery voltage. If battery voltage is not present, check fuse for ignition control module circuit. If fuse is not open, check for open in circuit between fuse and ignition control module.
Sep 9, 2010 at 7:36 PM