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I have a 2003 GMC Savana G3500. This only happens sometimes when I try to start it. It flutters and feels like it wants to shut off. After trying several times to see if it goes away, I will drive it for a couple minutes and I will turn it off. Then when I restart it, it starts up normal. I have changed fuel pump and fuel filter 8 months ago.

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  • Cars & Trucks Master
  • 12,223 Answers

Please RUN the scanner/computer for easy diagnostic and fix it.
You can have faulty sensor+ignition coil +PCM+BCM+wires spark+etc.
see the diagram attached.
God bless youI have a 2003 GMC Savana G3500. This only happens - 7c457ca5-12c4-4450-981d-a203c955dbf3.jpg

Posted on Jul 10, 2013

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Posted on Jan 02, 2017

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SOURCE: 2001 GMC Savana G3500 won't start

what about his gas pump reset button.

Posted on Jun 21, 2008

  • 2 Answers

SOURCE: 2000 GMC Jimmy will not start

The oil presure switch does have some bearing on the problem but my suggestion is to change the coil. I had a the same problem with an astro van. I changed everything that you have described and it fixed the problem just for a little while and then all of a sudden did it again. I changed the coild and the cold start swithch and never had the problem again.

Posted on Nov 29, 2008

Papa Chan
  • 56 Answers

SOURCE: 2003 GMC Duramax Diesel won't start

I see that you had the injectors replaced 20,000 miles ago. I would still check the oil to make sure it is not overfull. The new injectors could be bad. If the oil level is not overfull then get a paper towel and touch the dip stick tip on the paper towel while oil is on the dip stick. If it's only oil it will not spread. If it has diesel in the oil the oil with spread. If this test doesn't show the injectors to be bad then you have three other possibilities. The FICM (fuel injection control module), the fuel pressure regulator, or the injection pump. It's hard to pinpoint what the problem is without running more tests and the only way to run those tests is with the computer the dealership has. Just so you know your injectors are still under warranty until 100,000 miles. Most likely you will have to take it to the dealership to get you truck fixed. I hope this helps you some.

Posted on Jan 05, 2009

PitVipermd
  • 54 Answers

SOURCE: 1991 Dodge Dakota v-8 would not start...

Not good...you did more than I would have done...sounds like its time to take it to a qualified repairman and have him diagnose the problem(s).

Posted on Apr 24, 2009

  • 148 Answers

SOURCE: 96 gmc sierra hard to crank after 12-14 hours

that has a votec engine in it the fuel pressure is droping at knight and it takes 60 psi before the injectors will fire most likely cause fuel pump ,leaking injector ,or a feul pressure regulator

Posted on Jul 14, 2009

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CLICK on the following LINK. It has all the Diagrams for your Belts that you will need.
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