Question about 1989 Chevrolet K1500

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Throttle body is not getting any fuel but sounds like the fuel pump is working

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Ive got the same problem in my 87 chevy r10 from what ive read its the fuel pump i tried changing the throttle body, and the fuel injectors and it doesnt seem to be the problem im getting gas to the line but i dont think its enough pressure ill be changing the fuel pump and ill let you know.

Posted on May 14, 2010

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Posted on Jan 02, 2017

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jagjeffery
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SOURCE: throttle body injectors not fiering but there is fuel pressure

the injectors are fired thru the engine cotrol module but it gets its signal to fire from the pick-up located inside the distributor if you are loosing injector pulse only the ignition module is bad if you are also loosing spark when you loose injector pulse your pick up is causing the problem if you replace the pick-up i recomend you change the ignition module when doing so because they work together and you have to remove the distributor to change the pick-up

Posted on May 31, 2009

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SOURCE: No Fuel at throttle body

If you think it's the pump ... Find your owners manual to find locations of fuses and relays ... First is this vehicle on level ground? Does it have sufficient fuel level (1/8 tank or more) then have an assistant turn on ignition switch to run position (not start) while you listen under the tank to hear a pump ... it may only make a noise for a few seconds ... is there fuel getting to the throttle body at the input line (it could be the injector) if there is fuel pressure at the throttle body/injector it may be the injector itself) >>>If no sound is heard ... first check for power at following locations >>> Fuses >>> Fuel pump relay >>> harnesses/connectors going to the tank from the front all the way back >>> connector at pump (tank likely will have to be emptied and removed, and you would rather avoid this if possible) >>>pump ... I don't suspect filter, as I've never had one suddenly fail completely

Posted on May 09, 2009

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SOURCE: no fuel getting to throttle body / installed new

are you geting power to the fuel pump?? On some vehicles the electric fuel pump primes when the ignition is switched on to acc (i.e when all the dash lights come on etc) and on other vehicles the fuel pump doesnt start untill you turn the ignition over to the "start" position. Id check the fuel pump was acutally getting power and go from there

Posted on Jun 30, 2009

  • 56 Answers

SOURCE: truck cranks but won't start

Check the fuel line it may have a small hole that is allowing air in. If air is getting into the line the fuel will flow back into the tank. Happend to me one day and it turned out to be the clamp.

Posted on Jul 20, 2009

  • 507 Answers

SOURCE: 1998 chevy tahoe 4x4 wont

fuel pump or fuel pressure regulator. When you turn the key do you hear fuel pump run? If not odds are the pump is bad.

Posted on Aug 23, 2010

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