Just got truck back from so warranty repairs, oil leak, small fuel leak, and bad glow plug replacement. Dealer had it about a week checking it out thouroughly while doing those repairs. Got it back Thursday morning and ran like a champ all day!! Friday morning went out to start it and it turned over but not one single cylinder fired. Cranked several times for a minute or 2 before stopping for about 5 minutes. Came back out 5 minutes later and cranked it, a cylinder or two fired until enough fired to start the engine. No smoke, exhaust was clean. Ran really rough while driving off for about a minute until it gradually smoothed out and ran fine. Again, no smoke. Drove for about 10 minutes until ariving on job. Truck sat for about 20 to 30 minutes. Cranked longer than normal until starting rough again, clearing up one again after about 30 seconds to minute of driving, again no smoke. Did this about 4 or 5 times until finally it would hardly run over 5 to 10 mph and took about 30 seconds just to get to that speed. Drove straight back to the dealer where he immediatly put it on the computer, checked the fuel filters and etc. 3 injectors showed bad on the computer.

My question is why would no cylinders fire at all at first then enough fire to start the engine and only 3 injectors show bad with no warning. If 5 were still good wouldn't those 5 have fired when I first cranked the truck instead of getting absolutely nothing?

 

Check your ficm plugs and push all wires into each plug before plugging them back in. Check ficm voltages as posted on here. I HIGHLY doubt it is your injectors.

 

He put it on the computer, said FICM checked out

 

Check your ficm wiring harness plugs and wires and disconnect each injector harness at the valve cover and push each wire into the plug and plug in again.

 

Scheduled for injector replacement tommorrow, guess they'll check the wiring harness at that time.

Don't guess the fuel leak repair would've caused a problem. It was a bad gasket at the engine mounted fuel filter, very minor leak but was enough to show up on the front of the engine, steering linkage and power steering equipment.

 

You mention a "small fuel leak" in your first post. What was leaking and what was done to fix it? Did they check your fuel pressure?

Edit: ok i see your post about the leak now. I still wonder if the fuel pressure was checked

 

yes tell us exactly what the ticket states for the original visit

 

OK, let me find the ticket.

 

We just want to see if they may have contaminated the oil/fuel system

 

OK, it says "Check for fuel leak. Advise. Added black light dye to fuel system. Fuel pressure regulator housing leaking. Installed kit. Steam cleaned."

FP number 3C3Z-9T517-AG
Description KIT - P 508796

 

If it were mine I would check fuel pressure to make sure nothing went wrong with the regulator kit installation.

 

It looked like he had some kind of gauge on it somewhere near the on engine fuel filter. I assume it was a fuel pressure gauge, but I don't know for sure.

 

They probably tested the fuel pressure, but wouldn't hurt to ask them to double check, just in case.

 

Does anybody find it odd that none of the cylinders fired for the first minute or so, then it started to gradually fire some until it started 5 minutes later?

 

sounds like you were sucking air.