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2007 Chevy captiva 2.4 no fuel pressure

We have tested the fuel pump and it is working beautifully, however there is no pressure towards the injectors. we have started the car up by putting fuel in the throttle body so it is running. and suggestions as to what the problem could be?

Posted by Anonymous on

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Posted on Jan 02, 2017

  • 99 Answers

SOURCE: 1999 chevy blazer fuel problem

probably not fuel filter . probably going to have to remove the upper intake and replace the fuel injector spider(fuel inj assebly) if it is droping fuel pressure it is leaking into the upper manifold

Posted on Nov 30, 2008

  • 116 Answers

SOURCE: 1999 chevy blazer wont start


if your losing fuel pressure after the pump runs the drain back valve in the pump has failed.

and i doubt that you are seeing enough fuel pressure to run a vortec engine.

low fuel pressure equals a non running vortec

Posted on Apr 11, 2009

  • 316 Answers

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

  • 4088 Answers

SOURCE: 1987 chevy s10 2.5l tbi will not start. changed

That eliminates the crankshaft and camshaft position sensors. Have you checked the fuel injector itself for an open winding or stuck valve plunger? There should not be a steady 12 volts to the injector--if good injector, it would be spraying fuel steadily into the throttle body. But at least the engine should try to run if poorly. Take the injector out, dry it off with air, and intermittently apply 12 volts to one terminal while grounding the other. You should hear a click from inside every time you touch 12 volts. If not, replace it. If it does, it may be plugged with debris. Try blowing through it in reverse with compressed air.

Posted on Jul 17, 2009

  • 811 Answers

SOURCE: 1999 chevy blazer fuel pump cycles when key is on

check or replace fuel pump relay

Posted on Sep 27, 2009

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