Question:

4.3 chevy blazer/bravada cranks but wont start?

by Guest2580  |  12 years, 8 month(s) ago

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fuel pump is good, got gas got sparkcranks but won't start. checked injectors replaced pressure regulator, tested crank sensor...? help!

 Tags: 4.3, blazerbravada, chevy, cranks, start, wont

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  1. Guest2915

    I would advice you to use the  injectors spray when your car starts cranking and is not starting. Do  check the injector feed circuit at the injector plug. One wire should have battery voltage on it with key on. The ECM pulses the other wire to ground to fire the injectors.

    Injector test light plugged into an injector plug should flash when the engine is cranked over. If there is no flash, this means that the ECM is not working or isn't getting all the signals it needs to fire the injectors. Possible distributor module or pick-up coil problem.

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