09 Yukon fuel pump/control

[chopperwalker]

My wife drove through a large puddle. The sel came on shortly after. It killed a little while later. I net her and it stared for me prob 5 minutes after it killed.

Got it home and checked codes. All related to fuel pump or fuel control model. Next day I checked and there were less codes and I drove around the neighborhood no problem. Drove it that night too. Talked to service desk at local dealer and asked about a recall related to module and water for my year but my Vin doesn't match up. They didn't have room til Monday so we agreed it might literally dry up and be fine.

It didn't. killed on my just now. Starts intermittently but won't stay on if it does. Couple revs at best. Got towed to local shop that's closed.

My question is how can I determine if its the fuel pump assembly or the module? And if its module, does it have to be programmed? My goal is to knock this out today if possible, but don't want to waste my time if it needs the dealer anyway.

Thanks
Chris



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[scribble]

If you are around 100k i would suspect the fuel pump as that seems to be there magic number of when they quit working.

 

[chopperwalker]

I'm at 175K. Its at the local shop now for diagnosis

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[scribble]

Maybe a faulty ecm or even a relay may be going.


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[chopperwalker]

So my local shop said the fuel pump is good, but the ECM was going crazy. They can't program it and said the dealer needed to do it. I had it towed to the dealer, but apparently the local shop cleared all the codes. This matters bc they dealer found nothing wrong. They couldn't reproduce the problem. The suv started and ran fine and not codes came back up. They kept it a couple days and found nothing. So two shops and two tows and zero dollars and zero repairs. Not sure if this is good or bad

It happened to rain heavy here last night, but I didn't hit any big puddles. I feel like I'm playing Russian roulette.

I read about a recall for 09 Yukons related to this. The dealer replaces the whole ECM assembly due to a seal going bad and water being able to ********* causing stalls and no-starts. However, my VIN misses the recall by about 4000 builds.

Not sure what to do from here but wait until its an issue again.