Pirate 4x4 banner

98 TJ no fuel to rail

1K views 7 replies 3 participants last post by  SCOTT@TEOR 
#1 ·
Here is what I have.

98 TJ 4.0 No fuel to Injector Rail and no reading on fuel gauge.

Already dropped tank and check to make sure it worked. Pumped fine. Also checked Fuel pump relay. Wiring seems to be fine, no shorts or cuts.:confused:

I am at a loss.
 
#4 ·
No pressure at the rail means:

1. fuel pump no worky (Is it installed correctly? not backwards?)
2. fuel filter clogged up
3. The FPR inside the tank is at full open and not allowing fuel to enter the fuel line to rail.

No pressure, is no pressure. Thats what I come up with.
 
#5 ·
I agree but all that was check, evarything is new inside the tank, unless I got a bad unit. Check it in a bucket of gas befor I put it in the tank to make sure it pumped.

Almost to the point to where I thing the line itself is clogged up.
 
#7 ·
If the fuel sending unit came unplugged just a little bit to where it still looks like it is plugged then this will happen.
It happened to me on the trail. The gas gauge dropped way below E and i wasn't getting pressure.
 
#8 ·
After a little more research, I see it could be the pcm.

I am going to check the sending unit install and connections one more time. volmeter it all back out to make sure I am not going to ground somwhere in the circuit.

Here is hopeing for simple fix...
 
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top