1990 Chevy Lumina APV

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  #1  
Old 11-03-07, 09:13 AM
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Unhappy 1990 Chevy Lumina APV

Any help for my van? It cranks over, but with no fire. I've replaced the coil, distributor cap, rotor, spark plugs and wires, even a new battery. Still no start up. Can any one give a little help?
 
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  #2  
Old 11-03-07, 10:51 AM
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I would check it for spark at the coil. Run a plug wire from the coil to a spark plug and ground the plug with a pair of vice grips just above the threads. Have someone spin it over and check at the plug for spark.

If nothing, pop off the distributor cap and spin it over to see if the rotor is turning. If no, you have problem with the distributor itself or the dist drive in the engine. Open the oil fill on the valve cover and see if you can see the rockers moving when you turn the motor over.

If everything moves, check at the coil input terminals for current with key on. If you have current there, but no spark, and everything moves, you probably have a bad pickup coil or crank sensor.

This should get you started.

Hope this helps,

Bob
 
  #3  
Old 11-03-07, 08:10 PM
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It's definitely a spark problem and not fuel related? Fuel pump is running?
 
  #4  
Old 11-04-07, 11:01 AM
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I have replaced a bunch of crank sensors on these things for this problem. I would say it's probably gonna be your problem if there is no spark. Also, it could be a faulty ignition module.
 
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