Jun 252015
 

Having to spray primer in throttle body in order to start..have replaced crank shaft censor,fuel pump..we have tested battery also…tested fire on spark plugs..im thinking its sometgin to do in throttle body…we have cleaned battery terminals also…plz help

  One Response to “2004 Chevy impala 3.4”

  1. First off if the check engine light is on please post the codes. If there is a vacuum leak or failed or false signal from a sensor the ECM may be keeping the injectors from spraying fuel.
    Have you tested to see if the injectors are firing? That would be important to know.
    This is the type of probe tool I use. You just touch the tip of the probe to the side of any fuel injector while someone is cranking over the engine and it blinks when firing. Quick and easy to use.

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