Question about 1996 Chevrolet Blazer

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I have96 blazer will start and run if i prime carb with gas but

If i let it set all night long it wont start in the morning without priming the carb with gas we have changed the fuel pump but the problem still exist could this possibly be a cold start problem?

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  • Anonymous Mar 15, 2014

    runs great and starts when warm

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  • 91 Answers

Did you also replace the fuel filter with the pump?

Posted on May 28, 2009

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Could this be a cold start problem


defective fuel pump the check valve is allowing it to lose prime replace fuel pump.

May 28, 2009 | 1996 Chevrolet Blazer

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Engine wont start without priming with gas first, then runs well


i have the same problem on a 98 jimmy 4.3 4x4.
i replaced the fule pump and have good pressure.
new wiers & coil (good spark) no MIL & no codes.
will only start when primed. it will run & drive all day
with no problems.
but once it has been turned off (warm or cold) i will
have to prime it once again to start it.
i have another engine that was in it before it spun a bearing.
it ran fine so i know all parts are good.
i swaped the mass air flow and throttle body but i still have
to prime it everytime to start it. am i forgetting something?
should i swap out the intake with the injectors?
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Sounds like the inlet valve isn't seating properly and allowing the carb bowl to drain out overnight. Make sure the needle valve is not binding and that the float tang is bent properly to set correct float level. Also, make sure carb to manifold nuts are securely tightened.

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checked fuses , #9 fuse for fuel pump was loose.

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