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Well if the truck ran for 10 mins plus, i would be skeptical of the IP, how did it sound running? Was it solid and smooth or very rough, if it was smooth, i would doubt the IP. Just sounds damn weird! I am not in the know as to what it is specifically, but i would doubt the IP if it can run on its own that long.
Sounds like air intrusion to me.
you messed around with the pump and lines, got the air out.
what ever the leak is was better, but still lose.
The truck ran tell it rattled lose and got air in again.
If it is not that than maybe the IP wire is lose.
Good enuf for the click test but cranking the motor rattles it so it does not give power to the IP solenoid.
were are you? if you are close i will come look at it for you.
Not cranking fast enough.
Air intrusion that you cranked the engine long enough to replace the air with fuel.
Or the injection pump is actually going bad.
I'm still going to say IP. Seen your exact problem on two other trucks when I was working with Camden Automotive Diesel service, and my truck done it as well. Could spin and spin and spin and it wouldn't crank (even with battery booster to ensure batteries had enough output). They would fire off every time with ether and would run til the cows come home but would not start on their own (glow plugs was the first I checked) If it was air I agree it should start after some point unless you have a GIANT air leak and one that big would be losing fuel somewhere. On all three trucks I have experienced this with, once I replaced the IP's the problem went away and started as they should on half a rotation after GP cycle.
bump on this last post, i wouldnt know what to look for but initially if he is offering to reimburse that would make me feel a lot better. Anyone else?
I'm still going to say IP. Seen your exact problem on two other trucks when I was working with Camden Automotive Diesel service, and my truck done it as well. Could spin and spin and spin and it wouldn't crank (even with battery booster to ensure batteries had enough output). They would fire off every time with ether and would run til the cows come home but would not start on their own (glow plugs was the first I checked) If it was air I agree it should start after some point unless you have a GIANT air leak and one that big would be losing fuel somewhere. On all three trucks I have experienced this with, once I replaced the IP's the problem went away and started as they should on half a rotation after GP cycle.
I hope you read this part in my post. Check the glow plugs first before you finally comdemn the IP. I wrote this on the assumption that you already have done this.