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shawn plaster Posted on Dec 15, 2015

Why does it crank, then die as though losing prime?

Replaced fuel primer assembly still the same. and the fuel gauge quit at the same time could this be an ecm problem

5 Related Answers

Anonymous

  • 36 Answers
  • Posted on Jan 08, 2009

SOURCE: starts then quits

Try the ignition control module located under the distributor cap $30 - $60. This is one of two parts on this truck that will cause it to not run or shut down after running for only a short time. The other is the fuel pump I think it is safe to rule that out as your problem

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Molson02536

Harvey N Tawatao

  • 3854 Answers
  • Posted on Jun 26, 2009

SOURCE: 92 CAMARO Z28 5.7 TPI CRANKS IDLES, GOES DEAD

Have you tried to pull any DTC codes. Here is a link for you so you can pull some codes, but you may have a bad Ignition Control Module (ICM) it's around $40.00 at Auto Zone and they can give you the step by step instruction to replacing it with common tools. The ICM is common to go bad after a few years due to time and corrosion. It's location is under the rotor in the distributor, as it heats up if fails or any changes in the engine speed. Check the wires to make sure there are no damages. Keep me posted be glad the help. http://www.troublecodes.net/GM/

Anonymous

  • 255 Answers
  • Posted on Aug 17, 2009

SOURCE: 1987 Chevy R10 project truck won't start

check the float on the carb is stuck shut not letting fuel in

Anonymous

  • 42 Answers
  • Posted on Nov 04, 2009

SOURCE: 1994 Chevy Blazer problems. Car starts and runs

Have you checked the battery after it died. I would check and see if the alternator is putting anything out. If its not, then i would look into the pink and brown ignition wire that runs the alternator and gauges and such. If any problems with this wire those very things happen. Hope this helps.

Anonymous

  • 2926 Answers
  • Posted on Jan 17, 2010

SOURCE: '94 chevy camaro z28 losing power while driving,

Has this GM tech ran other diagnostics after there first repair procedure went down in flames. At this point, you need to take this vehicle back to them and have someone check this engines performance on a scanner. THAT THEY SHOULD HAVE DONE IN THE FIRST PLACE. You paid them money to do a job, and they failed, so now they owe you. Don't let them push you around either.

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I turn ignition to ready position. The fuel pump engages and prime's the line. I then start the engine. Engine starts and runs for a max of 15 seconds. As soon as the engine cuts out the fuel pump...

The crank sensor is a good candidate. Pretty common failure on jeeps.
To clarify, the fuel pump is on all time during engine cranking, and during engine running. When the engine cuts off, the pump will also be stopped. But, you will not lose pressure in the fuel lines and fuel rail immediately. The check valve in the pump is supposed to hold fuel pressure in the system for a good time-about 20 minutes. The pressure should bleed off very slowly.

Your fuel pump and fuel system is probably good, but if you really lose prime (or pressure) that quickly, then there is a problem. Best way to check is with a fuel pressure gauge after the engine cuts out. Or, if you have the test port schraeder valve on the fuel rail (looks like a tire valve), you can use a screwdriver to press the center of the valve. If gas squirts out, you do have fuel pressure, prime is not lost, fuel system is good, and you can assume problem is in the ignition circuit, not a fuel problem. Probably the crank position sensor.
Good luck, Casey.
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2001 impala starts and dies It usually starts the second time and stays running. also stalls intermittently while going down the road. have replaced mass air flow sensor, crank sensor, removed throttle...

this sounds like a fuel issue, sometimes can be difficult to diagnose because its obviously being intermittant. whether its a fuel pressure regulator or the pump itself, i feel the most likely cause is the pump itself losing prime and thats why you have to try 2 times or more to crank because you are creating pressure from the fuel tank everytime you try to crank, this would also be a possibility as to the shut off if its getting hot than shutting down and than your able to start it back up. i would put a fuel pressure gauge on the vehicle and watch my fuel pressure readings to make sure they are staying true. if the fuel pump checks out than it will be an ignition or computer issue, i hope this helps
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