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Anonymous
Anonymous Posted on Jul 18, 2009
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97 chevy 4.3 liter no spark no fuel pump running.

97 chevy 1500 truck 4.3 liter no spark, no fuel pump running.

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  • Anonymous Jul 18, 2009

    WE REMOVED THE RELAY COVER, FOR THE FUEL PUMP AND PUSHED DOWN ON THE CONTACTS.AND THE FUEL PUMP RUNS.THE ENGINE CRANKS OVER BUT WE HAVE NO SPARK AND FUEL PUMP NOISE RUNNING.SEEM LIKE IT IS MISSING A SNIGLE TO THE COMPUTER TO TURN THEM ON.

  • Anonymous May 11, 2010

    Is there power electrically going back to the fuel pump . Is the battery charged and has good power and ground. Is the engine turning over ? A possible solution is the ignition switch is not sending signal to the computer to activate the system.

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  • Posted on Jul 21, 2009
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4.3 and 2.8 motors have a ceramic module in the distributor. if you have alot of miles on the truck, and there is no spark, that module is usually the culprit. easy to replace with a nut driver and some dielectric grease. mod is located in the distributor when you take the cap off look straight dowm and its right there.
also check eec relay and fuse. that will also cause the prob.

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  • Posted on Nov 27, 2009
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