6.2 will not start after sitting warm.
#1
6.2 will not start after sitting warm.
I have been fighting with this issue for a couple months now, it fires with no hesitation when cold but if I drive it and let it sit for an hour it will just crank and not fire. The truck has 180,000 miles, injection pump was changed 6000 miles ago, injectors are original, fuel filter is new, mechanical lift pump has 6000 miles also. Does anyone have any insight?
#2
#3
#5
I changed out the original cables with some AC Delcos, it definitely sped up the cranking but I still have the same problem and it’s getting worse, now after ten minutes of the truck being turned off it will just crank and not start, I seen my mechanical lift pump was wet when I was under the truck so the plan is to change that out today along with the rubber hose connected to it. I’ve also poured cold water on the injection pump and that didn’t do anything.
#7
I had something similar happen to another yruck i fixed urs ago and the fuel shut would work finevwhen cold and truck would run fine until he shut off. The fuel shut off would close but wouldn't reopen when it was hot. Once it cooled down it would would work. I don't know if you could accurately test a intermittent problem on those. Maybe check around and see if you could get one reasonably. But don't use anything aftermarket . I know thats preached alot on these . But I'm here to tell you. You will pull ur hair out if you don't use A/c delco parts on these. Which I'm sure you have seen this b4.
Thread
Thread Starter
Forum
Replies
Last Post
klein444
Chevy/GMC 6.2L and 6.5L
13
06-20-2015 11:48 PM
icy767
Diesel In Distress - Support Ticket
11
12-15-2009 11:00 PM