hello
This is my first post but i have found a lot of useful info here so thanks guys.
I have a 1987 4x4 4.0 I6 mpi that i have been rebuilding for the past few months. i got it running well but now i have had major problems in the last few weeks.
When the engines cold it puts to much fuel in, it misses backfires and shudders badly if you push the gas pedal down. the tail pipe smells strongly of fuel.
Run it for 15-30 mins and it will run fine. i also get only about 12 mpg right now.
I have rebuilt or replaced (with in the last 800- 1000 miles) nearly everything in the truck.
engine was fully rebuild as was the transmission and transfer case
new injectors, fuel pump, regulator, every sensor except the oil pressure
new computer (bendix), Ignition Control Module, coil, plugs, wires, cap, and rotor
About the only thing i haven't replaced is the starter and alternator both tested and working fine.
i can't find the problem and it's driving me nuts.
Thankful for any help or wisdom anyone might have.
P.S. i just replaced the temp sensor fyi
side note on my mods to the truck
Rusty's Trail Bumper
4.5 inch lift ( Rusty's leaf spring pack kit )
285/65R18 BF Goodrich TKO 2
Anyone know where i can get bigger axles 44's or 60's (what to look under in the junkyard)??