2004 Duramax throwing fuel??

Question

We just got back from a 400+ mile trip with our 5th wheel and found that a lot of unburned fuel had blown into the bed. We remove the tail gate while towing. Also, a lot of fuel streaks are on the front of the trailer. My question is this: Is it normal for unburned fuel to be thrown out the exhaust on the DMax? I have to assume it came through the exhaust since it had a lot of soot mixed with it. Also, milage has dropped drastically. On previous tows from St. Louis to Bristol, TN, I was getting about 11.5 mpg. On this trip, it was only about 9.7 mpg. I would take it to the dealer, but all the mechanics are on strike in St. Louis area. Any ideas?

Thanks for any replies.

Bill

Randd01 · Accepted Answer

They are having a lot of fuel related issues with the new Duramax. There is afix unfortunately they are so backed up they cant get the repair parts fastenough. Call your dealer and get on the list. You should also notice that yourcrankcase is filling with fuel also. If you need to drive it I would change theoil every week till you get it fixed or your gonna dilute your oil and causepremature engine wear. Suks don't it?

ph17314 · Answer

It must be nice to buy a  NEW vehicle and put all those old vehicle problemsbehind you...Paul

Randd01 · Answer

Ya sometimes I wish I kept my old 95!

jmpulse · Answer

That is not normal.  Sounds like something fairly major.  You can go here,  and look in/ ask questions about it.Jody

Bill · Answer

I've checked the crank case and oil levels is staying right on FULL. Will contact dealer, but all their mechanics are still on strike. So far, I only have about 14K on the clock so lots of warranty left. Would be nice to have it blow now, as long as I'm close to home without the

5th wheel behind me.

Will post the outcome when I get it.

Bill

Randd01 wrote:

Tony Kimmell · Answer

It's just fate taunting you for not buying a REAL diesel... ;-)-Tony

2004 Duramax throwing fuel??

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