nolimit

Okay people I need some suggestions. !988 3.0 rebuild. First I got it back together and had oil presure problem. New oil pump was bad. Now that that problem has bee solved. I have the motor back in and everything seems to be checking out alright but no fuel. I have good fire to the plugs,checked the relay inside the left kick panel and it's operating the solenoid resistor checks out . Is ther anything I should check before dropping the tank to check out pump. Thanks

mt_goat

Do you have the AFM connected and the tubing in place? The flap door in the AFM turns on the fuel pump as air is sucked through it.

nolimit

I have it connected but not to the throttle body. do I need connect the whole air intake system. Thanks

mt_goat

Yeah, without the connection to the TB the AFM flap won't get sucked open to turn on the fuel pump. 11th commandment: Thou shall have no air leaks between the AFM and the engine.

nolimit

Thanks Goat I'll try that.

nolimit

Okay everything is hooked up still no fuel. Anything else I might try before dropping the fuel tank to check pump. Thanks

nolimit

Still have problems. This a 1988 4x4 truck 3.0 I've done more checking and don't think I'm getting juice to the fuel pump all the wiring looks fine. What else should I be checking I feel like it's something obvious. Please help

mt_goat

Does the flap move ok in the AFM?

nolimit

Yes everything seems to be operating

abecedarian

all your fuses are good?

4Crawler

iTrader: (3)

Try the fuel pump test jumper or open the flap in the AFM with the ignition on:
http://www.4crawler.com/4x4/CheapTri...shtml#FuelPump

nolimit

All fuses good but inside the driver side kick panel there is a black box that has several wires going to it but there is an orange wire with a inline fuse coming from the box connected to nothing any idea. Thanks

nolimit

See what ya'll think. I've tried everything that's been suggested. If I hook a hot wire direct from battery to hot leg on fuel pump will it hurt anything.
Thanks

mt_goat

Well, that would make the FP run all the time. It can be dangerious if you get in a wreck or something to have the fuel pump running with the engine off. When my engine swap was first completed I had a wiring issue that ran the pump anytime the key was on, I drove like that for a while before it was corrected. The unused fuel just gets returned to the tank by way of the fuel return line, unless there is a failure of the system somewhere.

mt_goat

If that does get it going you might want to check to see if someone has installed a fuel cutoff switch somewhere that you don't know about.

nolimit

Thanks I just what to get it up and running I'm not giving up on finding the true problem.