Question about 2002 Chevrolet Silverado 1500

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2002 Silverado 4.3 engine will crank but not start

The engine cranks for minutes but never fires. I know the fuel pump is working.

Any ideas

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  • Anonymous Feb 13, 2009

    Same problem I am having. Replaced the MAP Sensor and it will crank now but will not run for more than a couple seconds before stalling. If I give it gas it runs rough.

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5 Suggested Answers

  • 239 Answers

SOURCE: 1997 Chevrolet Silverado Fuel System

Hello Johnholley
I am wondering do you hear the fuel pump when you just turn the key into the on run position not crank just in run and listen and see if you hear the fuel pump run for a second, If you don't hear it you will want to check for power at the fuel tank, and have some one cycle the key while your under the truck with a test light. Hopefully you have power and you hear the fuel pump run. Now if you do hear the fuel pump running then the next thing you will want to check is for spark, It could be the ignition module or pickup coil. check out those thing and I am sure you will be able to figure out whats going on. If you don't get back to me and we can try a few other methods. I sure hope that helps you out johnholley. and thanks for using Fix Ya Bear001

Posted on Jul 20, 2008

tommyboinow
  • 324 Answers

SOURCE: fuel pump relay 2002 Jaguar x-type 2.5

in the mass fuse box, under the dash, unless you have the manual you will not beable to tell wich one it is.. get a chiltons repair manual or a haynes...

Posted on Nov 26, 2008

  • 7 Answers

SOURCE: 1988 ford ranger 4x4 2.9L only cranked,changed

possible fuel pump relay

Posted on Mar 06, 2009

  • 54 Answers

SOURCE: 96 Chev Silverado having to crank 3 - 4 times before start

Well the only thing i can think of is when your fuel is below half a tank the pressure relief valve and a rubber hose between the pump and the fuel line is exposed. Its possible your fuel is leaking back into the gas tank as it sits overnight, ect. You may want to perform a fuel pressure check when the the gas is at 1/4 tank and been sitting for awhile, pressure should hit 55 seconds after key is turned to run position.

Posted on May 13, 2009

  • 12 Answers

SOURCE: 2002 chevy express 3500 turns over but wont start,

CHECK YOUR CRANK SENSOR AND CAM SENSOR.

Posted on Jul 29, 2009

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When i turn the key the engine cranks over but does not start, if i continue to crank it for a minute or two then it will eventually start and drive just fine. any ideas?


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