Truck won't start

[truckie481]

My friend has a 03 lb7, he started it this morning and plowed the drive, later in the afternoon he went out and it won't start. Batteries are six years old so I told him I would think about new ones and check to see if you lost prime. The temperature is about 29 deg F so we don't suspect gelling. The engine turns over but does not fire. Should I have him check some thing else? He lives 40 miles from me so we are doing this over the phone for now, any help is greatly appreciated.

 

[83GMCK2500]

We had an 02 L7 for a little while, the seals were going out in the fuel filter head/primer. Sometimes after sitting it would leak enough air in to keep it from starting. Without cracking the bleeder I would push the primer down about 3-5 times and it'd start after that.

 

[truckie481]

Trucks running, water in the fuel.

 

[BudTX]

Glad that you got it figured out.

 

[Ed HD]

Throw some Power Service Diesel 911 in the fuel, and run it as dry as possible, then buy from a different station, preferably a truck stop or heavily truck trafficked place, that has a lot of turnover in fuel.

 

[truckie481]

911 went in as soon as we saw the water.