need so help
Post Fiend
Joined: Dec 2010
Posts: 10,121
Likes: 3
From: Orrville, Ohio
You should see something close to 20 PSI while cranking. Stuff some rags down there as fuel may spray a little when you're testing or removing the gauge, but you should see pressure while cranking.
It sounds like the fuel pump is moving fuel, though, as you said it filled the filter housing, but it's still best to confirm with a pressure gauge.
Any chance the IPR connector got bumped loose while you were working in the valley? Or that the fuel bowl wiring harness (which has the IPR wiring in it) didn't get reconnected? I guess I'm assuming you had the bowl out while you were replacing the pump...
It sounds like the fuel pump is moving fuel, though, as you said it filled the filter housing, but it's still best to confirm with a pressure gauge.
Any chance the IPR connector got bumped loose while you were working in the valley? Or that the fuel bowl wiring harness (which has the IPR wiring in it) didn't get reconnected? I guess I'm assuming you had the bowl out while you were replacing the pump...
Laughing Gas
Joined: Jan 2016
Posts: 910
Likes: 96
From: Fl.
If you disconnected the fuel lines from the back of the heads, I would think it is going to take some cranking to fill the heads with fuel and build pressure. How much cranking have you done? Keep the batteries charged.
Lead Driver
Joined: Apr 2016
Posts: 7,211
Likes: 1,341
From: Bahstun
took mine a while to prime but not long to start up once primed
are you getting any smoke when cranking?
hopefully you didn't disturb the GPR wires, its a bit cold out to start with out GP unless its heater is plugged in
are you getting any smoke when cranking?
hopefully you didn't disturb the GPR wires, its a bit cold out to start with out GP unless its heater is plugged in
Thread Starter
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Fleet Mechanic
Joined: Nov 2007
Posts: 1,263
Likes: 11
From: DARTMOUTH MA
Ok. So i THOUGHT i was getting fuel to the fuel bowl. But im not.
So im thinking it was never the fuel pump?
But anyway i have a new fuel pump.
So is there an issue in the fuel tank or tanks.
If i just switch tanks wouldnt that fix the issue?
I need help. Ty
So im thinking it was never the fuel pump?
But anyway i have a new fuel pump.
So is there an issue in the fuel tank or tanks.
If i just switch tanks wouldnt that fix the issue?
I need help. Ty
Lead Driver
Joined: Oct 2003
Posts: 8,476
Likes: 37
From: Madison, WI
How have you determined that you're NOT getting fuel to the fuel bowl? Earlier you said the fuel bowl overflowed. That would indicate at least the primary stage of the pump is filling the fuel bowl.
You did reinstall the filter, right?
You did reinstall the filter, right?
Thread Starter
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Fleet Mechanic
Joined: Nov 2007
Posts: 1,263
Likes: 11
From: DARTMOUTH MA
just a question. can I draw fuel from a 5 gallon can? run a fuel line from the right side of the pump to the can? would that give me any answers on whats going on? ive been without my truck close to a month. a little frustrated.
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