03 Suburban dying while driving

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03 Suburban dying while driving

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Chevrolet Forum >> Chevy Trucks, Vans & SUV's >> Suburban >> 03 Suburban dying while driving

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03 Suburban dying while driving - 8/11/2007 12:37:10 PM

mtinok

Posts: 3
Joined: 8/11/2007
Status: offline

We've been having a problem the last few days with our '03 dying while we are driving down the highway at 65-75 mph. Put it in neutral and it will start up on the first or second try before you can even get pulled onto the shoulder, but it continues to do this. Anyone have any idea what this could be?

Post #: 1

RE: 03 Suburban dying while driving - 8/11/2007 2:02:08 PM

shannon1313

Posts: 3
Joined: 8/3/2007
Status: offline

Does it only happen when you are at or below a 1/4 tank of gas? I have an 02 that does the same thing but only when it gets at or below a 1/4 tank of gas. I had the dealership check out the fuel pump and they found nothing wrong, we put new fuel filter on and flushed the engine, but everything keeps checking out fine. I'm begining to believe it's a computer problem.

(in reply to mtinok)

Post #: 2

RE: 03 Suburban dying while driving - 8/11/2007 2:06:49 PM

mtinok

Posts: 3
Joined: 8/11/2007
Status: offline

It does it even at just under a full tank. We're starting to think it's a computer problem as well. He's on the highway in Missouri and it happened 4 or 5 times in about an hour span. He stopped at a rest area, got lunch, and he said it's running like a champ now, so we'll see what happens. I have a feeling it'll be at a dealership come Monday. Thanks!

(in reply to mtinok)

Post #: 3

RE: 03 Suburban dying while driving - 8/13/2007 8:17:37 AM

vf171

Posts: 41
Joined: 5/24/2007
Status: offline

Tell them to check the crankshaft position sensor. What size is the engine? we have an '02 8.1L and it was doing this about 2-3 times a day. Replaced it and all is well now.

Good luck

(in reply to mtinok)

Post #: 4

RE: 03 Suburban dying while driving - 8/13/2007 8:20:48 AM

mtinok

Posts: 3
Joined: 8/11/2007
Status: offline

I'm not entirely sure what the engine size is, but I'll definitely have that checked. Thanks!

(in reply to vf171)

Post #: 5