I have a 2001 Duramax, 4WD, 4Door Dually with Allison Tranny.

It keeps popping the SES light and my code reader shows a P0093 code, but says it's "unkown". Any ideas on the problem?

Thanks,

Alan

P0093 Fuel System Leak Detected - Large Leak Generic OBDII Code

(from another post)

Go check this post out: http://dieselplace.com/forum/showthread.php?t=18032&highlight=P0093

I'll check some of the items in the post tonight to see if I have fuel in crankcase, etc.

When the SES light comes on it keeps running but I lose power, and it won't run over 2000 RPM. As soon as I reset it comes right back.

However, I sometimes feel an intermittent hesitation, and was wondering if it could be injectors or the injector pump.

The odd part about the code you posted P0093 Fuel System Leak Detected - Large Leak Generic OBDII Code is that I have note detected any decline in my fuel mileage. As a matter of fact, I got a 15.88 the other day and I usually get closer to an average of 14.95. I am a log freak and keep track of every tank of fuel and service. Also I change the fuel filter just 3K ago, and change it every 10-15k.

Also, is this problem covered under the 100K warranty?

injectors!!!!!!!!!!

OK, it's the injectors, is it a warranty covered issue? I'm just short of 80K miles.

Thanks,

Alan

Yes.

yes.