Question about 1999 Chevrolet K1500

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I have a 1999 Chevrolet Suburban 1500, 350 V8, automatic. The engine cranks, starts and then immediately dies. Fuel pressure is low (about 50 psi) and decreases slowly after engine stops. Have already replaced the fuel filter, fuel pump and fuel pressure regulator. Could this be caused by faulty fuel injectors in the fuel meter body?

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  • 170 Answers

Check the fuel system
pump, regulator, fuel pressure damper , return valve
when the key is on the system needs to be pressurized and maintain pressure, if you dont have this , recheck your fuel system
if everything is ok, than cranck the engine and look for injector fault

Posted on Nov 07, 2017

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Posted on Jan 02, 2017

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Colin Stickland

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SOURCE: ford focus fuel pressure

you are interferring with something you know nothing about,dont you have an annual vehicle inspection to check that vehicle conforms to whats on the paperwork,or are using this just for track .as a vehicle with this sort of modification with no cat on either is illegal to use on the road.the brakes cant cope with extra power the suspension ,the chassis in fact everything is not designed for this if you want a faster car buy a nice jag or a porsche evan consider ferrari or lamborgini

Posted on Nov 12, 2008

Anonymous

  • 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

Anonymous

  • 116 Answers

SOURCE: 1999 chevy blazer wont start

THE FUEL PUMP IS BAD.

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

william moody

  • 713 Answers

SOURCE: 1992 Chevrolet Suburban 1500 350 backfiring and headers glowing

You probably have a clogged up exhaust system building backpressure on the engine. Check your mufflers and catalytic convertors if you have them something is restricting the exhaust.

Posted on Sep 08, 2009

paul nowicki

  • 541 Answers

SOURCE: My 4.3 vortec engine in my s10 blazer won't start

try the ignition module. if it is bad it does not send the signal for the the throttle body injectors to spray feul.

Posted on Oct 23, 2009

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1 Answer

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Fuel Pressure
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Y132: System pressure while idling (PSI).
Y133: Fuel pump pressure (PSI) with return line briefly restricted.



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