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Hi. There is a THEFT light in the instrument cluster. It normally comes on and then goes off when the key is turned ON. When you turn the key ON is the theft light blinking rapidly? Or does it come on for 3 seconds then go off?
Have you checked the fuel cut-off switch? And by that I mean to you have power going into and out of the switch to the fuel pump?
I dont have access to a phone for calls right now. I can leave the chat if you want to wait for someone to take a call. Or you can continue to ask me here.
Did you check the fuel cut-off switch?
Ok. That could be a problem.
Let me check exactly where it gets power from
What motor is in your truck
what motor is in the truck?
At this point you need to go to the fuel pump relay in the fuse box under the hood. remove the relay. with the key ON, check for power on terminals 30 and 86 of the fuse box.
terminal 86 of the relay. WHen you remove the relay, it says which terminals are which on the relay. Check for power on terminal 86 and 30 of the fuel pump relay. Power needs to be on those 2 terminals for the relay to work. And I need to go offline for a few hours. I can send you an offer for the wiring diagram to view yourself and work off of until I get back later. Up to you.
Who said that we are done working on it?
I need to go offline for a few hours.
The website does offer a service for sending service manual information. I just put that out to you. You can wait and continue later on if that is fine.
I will get back to you. You can feel free to continue checking for power on the 2 terminals of the relay.You can also respond to update me on any progress you make. That is why I was letting you know of the pdf offer so you can continue. Also check fuse 10 (20amp) in the fuse box under the hood.
Ok. Signing off now. Talk to you later.
Ok. The relay may be bad, or the pcm is not grounding pin 85 of the relay, to activate it. If you want, to check the circuitry, put a jumper wire across terminals 30 and 87. Then check if you have power at the fuel cut-off switch and see if the pump runs and the truck starts.
You said there is no power at the fuel cut-off switch. How can the fuel pump turn on?
And you said it starts with starting fluid. Sounds like you are getting no fuel.
That makes no sense. You may want to double check. And make sure the pressure at the rail is enough to fire the engine. Also did you try stepping on the gas when it would not start?
Have you tried disconnecting the mass air flow sensor connector and starting it?
WHen was the last time the spark plugs were replaced?
I am not sure. If you spray starting fluid it starts. You are not getting fuel. Dry plugs equal no fuel. I think you need to verify your fuel pressure. You may have a corroded wire not getting the fuel pump 12 volts. Just enough to get some fuel but build no pressure.
It might be worth replacing the plugs.
Have you verified power on one of the wires at the fuel injectors? with the key on.
If the noid light was flashing when you were cranking it, then it means the injectors are firing. But if the plugs are dry you are not getting fuel. You may want to check the fuel pressure with a gauge, or even remove the fuel rail from the engine, and see if fuel is actually spraying out. Maybe the injectors are clogged?
Depends what got into the fuel. You need to try something and figure out why fuel is not getting into the engine.
I already suggested checking the fuel pressure. I am going to opt-out and open the question back up to the list of experts and perhaps someone else will have a direction to go. Thank you.
You need between 30-45 PSI of fuel pump pressure. If you don't have a fuel pressure tester borrow one, purchase one or rent one and check the fuel pressure. Also, type in your engine vin number and/or tell if this is a gas or bi-fuel engine.
The 8th digit of the vehicle vin would be the engine digit or engine vin number. What is the 8th digit, a 3, L or Z?