Took a trip up to Flagstaff yestrday to hit the slopes. Truck ran fine the whole way up the hill( I live in Phoenix and Flag is about 150 miles away and a good climb) when we got done it just cranked. It was probably close to 50* outside and the truck had only sat for about 7 hours. Checked for codes w/ Pred and nothing. Tried to check fuel pressure, said command was 463kpa IIRC( I may have miss read I was alittle pissed at the timeCensored ) and actual was 0. It was getting dark and I really had no tools so on the hook it went. This morning the dealer confirmed no start (by service writer) then tech went to look at it "She fired right up". Now story is high resistance across fuel filter, That one is maybe 10k old and I have a pre-OEM Cat on it too. So would a "dirty" filter allow it to not start one time and "Fire right up" the next??? WTF!! To top it off, I had to be back in Phoenix this mornig so I got a rental, didn't get the call until I was back at home. What should I do take spare filters back up there and change them or what??

Do you have a remote start?

Nope!

A while back...some other members mentioned similar thing happening...going up into the mountains and would not start after sitting up there....but in their case it was a loose OEM filter. They mentioned that they had to tighten them down because they were loosing prime.

Now if you lost prime..you would have to prime it to get started....It sounds like that the tech just tried to start it and it worked.

Either way...just make sure your filters are on tight both the OEM and the CAT.

Had a similar thing happen over the 1st. Towed my 38 foot toyhauler up to the mountains in AZ. Using 4Wd to pull the beast through the mud I finally made to camp and turned the truck off. A few minutes later tried to start it all it did was crank. Tried a few more times and still nothing. Opened the hood and pushed the Prime twice and she fired right up. Haven't had it happen again. Must be a ghost...Jim


03 2500 HD D/A CC/SB LT, Juiced Stock Everything Else
If you call these trucks stock..

Well, I picked it up tonight and it started every time I stopped on the way home. I'll change both filters tomarrow and see if it happens again. Strange it would lose prime,if that is what happened, the fuel system has not been touched since I put the Cat filter on about 8k miles ago. I had gone up here a couple of weeks ago for a day trip and no problems then, it was quite a bit colder then IIRC. Making that drive three times in one day really sucks, any of you that have made it once can feel my pain!!-:t

O-rings don't like cold. The fuel filter can loose it's seal in the cold and regain it when it's warm. Tightening the filter and priming when it's below 0, dark and windy sucks (at least my 2002 had an underhood light) but that's what you need when fuel pressure is zero.

More than likely the diagnosis of high resistance across filter was due to pulling fuel through two filters which resulted in a higher than normal vac reading.

I could see o-rings getting hard if it was real cold, but it was 50* outside, coolant temp was 77*, and fuel temp was 64*. I replaced both filters and the Cat had a uniform dingy look, but still a yellow tint to the element, and the OE was only dirty about 1/2" up with the normal stripes.

Well, so much for my theory, but zero fuel pressure means loss of prime to me.

Had the same thing happen to me once. Towed a 10,000 lb toybox from Denver area to Rob Roy Reservoir in Wyoming. Camped our for a long weekend at about 10,000 feet. Got a no start when it was time to go home, opened the hood, took two pumps on the primer pump and started up. I was thinking that it might have been a combination of the cold nights, high elevation, and 30 miles of rough road with a fuel level of less than 1/2 a tank that allowed some fuel foaming that endied up concentrating in the fuel filter. I have a Nictane preOEM filter. Never had another problem.

The lose of prime idea did come to me during this whole mess, but it was after it had been towed and I laying wide awake in bed at the hotel wondering WTF!! BTW removing the J/A setup in the parking lot with only a #3 phillips screwdriver(which does'nt fit anything,but my board bindings) is real fun. After the filter change it still ran all day with no problems..??