RobG

My truck has become very hard to start lately. I don't drive it often since I go most everywhere by motorcycle. But when I do, it's becoming a problem. It'll crank and not start, or it'll sputter and die, or it'll sit there and sputter like it wants to die. Sometimes giving it throttle works, other times it kills it. Once it's running, it runs fine. MPG is the same, power is the same, etc.

Over Christmas, I had this problem, and I attributed it to bad fuel. I drained the fuel filter, put in a fresh cartridge, and got some fungicide, and a fill up with fresh fuel and it was fine. But then it came back again a couple weeks ago. I put more additive in it but it hasn't really helped.

Do these things have a lift pump that goes bad like on the 2nd gens? I'm wondering if that's it. I checked for codes and there was a P0477 (low voltage on engine brake) but I doubt that's it. I have a PacBrake PRXB, but it works fine.

Thanks!

Rob

rockhound

rob they do have a lift pump

hard start could be a lot of things, if it is sitting for a long time try cycling key through the wait to start cycle more than once, and see if that doesn't help,

i only use my rig to pull my fiver for the most part anymore. it also sits. i think maybe the fuel system just drains down after sitting for weeks on end and the rails etc are dry or not pressured up anyway. your fule supply line could also be draining down, air in the line?

I could be way off base,

RobG

I'm starting to think it's draining down. But it's never done it before, so I'm wondering what seal in the fuel system is the most likely culprit. I've had this truck for six years, and it spends a lot of time sitting, and it only started doing this in the last six months or so.

Rob