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massive issues with daily driver

4K views 1 reply 1 participant last post by  comrade red xv2 
#1 ·
Firstly, hello everyone, I am new to the forum, and need some help with my truck.

Long story short, I am navy stationed in OK, and traded my d21 for this truck with a friend who was moving to California, as this beast wouldn't pass their emissions, so history on the truck is kind of spotty, here is what i know after a month of driving it:

At some point, it was a 5.7(?) when you run the vin, that is what the build was.

It has 206k miles, and overdrive trans.
In the cold it needs to be started a few times as it would cut off after a minute or so.

Sunday night, i filled up the rear tank, on my way home, the O/D light began flashing, and the transmission started jumping gears, and the engine started jumping revs, before finally shutting off and not starting again. Monday, i started troubleshooting and had no fuel pressure on the rail. So, since i could hear both fuel pumps priming, i replaced the fuel filter, now i have plenty of pressure, but the truck starts after a few tries, and then runs erratically, revving up and down, chugging, and dying. sometimes it runs for ten seconds, and sometimes, ten minutes. So, in trying to get it to my house, it kept dying when i would hit the brake, and somehow my friend got it home without the brakes. The distributor, plugs, and wires are all good, and i can find no vacuum leaks anywhere. I have unplugged the MAF (assuming it is the big plug on the left of the intake manifold where the hoses go in) the IAC, and EGR, with no change in how it runs. This is my first throttle body injection vehicle, if it was modern, or even carbuerated, i could keep troubleshooting, but it is cold outside and i am out of ideas.

Thanks for the help ahead of time,
Liam.
 
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