This is my first post here. I searched around and read a lot of info on hard cold starting but I don't have a solution to my problem yet.
The truck is a 2004 (late) F-250 with about 255,000 miles on it. My parents bought it new and I got it 2 years and 20,000 miles ago.
Lately it has been in the low-mid 30s in Michigan and the truck is having a hard time starting in the cold. I plug in the block heater every night and it starts great in the morning, but after sitting in the parking lot at work for 9 hours it will barely start. I get white smoke and it will fire occasionally but not enough to run. I can usually get it running after about 20 minutes of cranking and waiting for glow plugs, but a couple times I had to jump start it.
When the truck had 105,000 on it, the dealer did the head gaskets and I don't remember what else. Over $5000 in work.
New batteries, FICM
and starter right before I got the truck. (20,000 miles ago)
New alternator 3 months ago.
New glow plugs and harness on passenger side a few weeks ago. The driver's side tests ok , <2 Ohms.
Rotella 15w-40 oil and Motorcraft filter has about 5000 miles on it. I plan on changing it to 5w-40 this weekend.
New fuel filters about 10,000 miles ago.
Running SCT "Street" tune. MBRP 4" exhaust with resonator.
Here are some parameters during cranking according to my SCT tuner:
Battery voltage: 9.5-10V
pressure: over 1000psi
Based on all this I don't think it's a problem with any of this:
Any ideas what the problem could be?
It does have the factory injectors, do you think they could cause this?
Thanks in advance