Ford 7.3L Power Stroke (1999-2003) :: 2002 7.3L Will Crank Forever But No Start (bad Fuel Pump)
Jan 29, 2017
I just got delivered a 7.3L from down south. Batteries were dead so replaced both. Fuel was a couple notches above red line (much closer to red line than 1/4 tank) so I added about 7-8 gallons.
It will crank forever and ever...Won't start.
With starter fluid it starts but not strong enough to pump the pedal and rev it up to keep it idling.
I know s-fluid is bad but if I continuously spray with key turned forward it will run but as soon as I let go of key it shuts off.
20 degree weather and it was delivered to a parking lot so I cannot plug it in.
Was told to check filter cap, turn key, and see if it fills bowl with fuel....if not then it is fuel pump. Someone else mentioned that it could be bad crank position sensor? Does this sound like fuel pump?
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01 7.3. Cranks, won't start. Tank was at 1/4 but is full now. The lift pump runs, I can feel and hear that the motor is spinning when I cycle the key. I removed the fuel filter and cycled the key and get no fuel into the bowl. It looks like the lines are stainless from the pump to the tank so I doubt it is sucking air. I pressurized the tank with a shop vac and I get fuel coming into the filter housing. Am I missing something obvious? I have never seen an electric pump that would run and not pump fuel. I removed the suction line at the pump and don't feel any suction there.
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There was no power getting to the fuel pump on my 2002 Ford F250 73 diesel traced it back to the inertia switch no power in or out but I'm getting power at the fuel pump relay put the code scanner to the PCM and no communication....
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1/4 tank just kept cranking. Added some diesel and started right up thought it was bad fuel gauge. Went about a mile and shut down just off. coasted went got more diesel but this time cranked but no start. anti theft light was flashing too.
Towed home started right up after tow... Starting now... Tomorrow was going to change the fuel filter....
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I am installing a fuel pressure gauge into my 02 7.3 I went to the thread the sensor into the plug hole on the fuel filter housing and it wasn't threaded, turns out the sensor thread is slightly smaller and a different thread ... The directions say to install it into the filter housing or the lift pump ... So I'm assuming I have to go the lift pump direction of installing it but where the lift pump is or how to install the sensor into it while not throwing a code or causin problems ... A step by step and even pictures.
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I have a 2002 F-250 with a 7.3.
I have been having a no crank, no start issue off and on for a while. batteries are new, cables are new, connections are clean, and starter has been rebuilt and checked. I bought a "starter relay" which i thought was the top solenoid in this picture. I also replaced the lower solenoid in the picture. The bottom solenoid was replaced with what im sure is the correct replacement. The upper I think is wrong. It started but then shut down and will not restart. The upper solenoid also was very hot after it shut down.
Long story short what is the upper solenoid for? Im assuming its not the starter solenoid. If so where is the Starter solenoid on a 2002 7.3?
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This applies to a 2001 F-350 with 73,000 miles on the engine. Engine oil level is good, batteries charged, HPOP reservoir is full and passes Cody test with flying colors. Fuel pump runs for 20 seconds at key on. Start takes about 6 seconds. If I shut the key off and restart immediately it starts in under 2 seconds but if I wait about 30 seconds it's a 6 second start. Here is an AE that I ran on it, it has me stumped. FWIW it seems to start quicker when AE is hooked up. ?? An odd whir type of noise comes out from somewhere under the hood when I first turn the key on and when I clear the codes with AE.
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The relay for the fuel pump keeps going bad. Is this a sign my fuel pump is going ? I just replaced my 2nd relay ( lasted about 1 week ) 1st lasted 16 years. Or is there another issue to look at ?
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I own a 2003 Limited with the 6.8 V10. I drove the truck on Sunday and all appeared to be fine, gas gauge was setting just under a half tank. When I went to start it yesterday, it would not start. Strong crank, no start. I checked my fuse and it was fine. Fast forward to this morning, since I had kind of depleted the battery with attempting to start, I put my little jump start pack on it and gave it a whirl. Truck started fine but the gas gauge was sitting on empty. I had five gallons of gas in the garage so I added that to the tank then drove to the local gas station to add more fuel. I put another 10 gallons in the tank so it should have roughly 16 or 17 gallons in the tank. Gauge shows 3/4 tank but miles to empty is right around 175 miles which would seem right with 17 gallons in the tank. I suspect the fuel pump. I don't really want to spend $500 on the Motorcraft unit but was wondering if the group believes the Delphi or the Bosch units are quality replacement parts?
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2003 F-350 - 7.3. With the key in the on position there is zero voltage to the fuel pump. Fuel pump fuse is good. I traced the red with black tracer wire from the pump up through the firewall and to the safety inertia switch. The switch has continuity so it's OK. Then from the safety switch I traced the green with yellow tracer wire to a fuse block plug connector. Then I checked continuity from that connector out to the #40 fuel pump fuse and it's open.
So I then i checked from the fuel pump fuse to all the back connections on the back of the fuse block and there was no continuity to any of them. So I removed the back cover off the fuse block to expose any issues. I found two board mounted relays. Now, from the fuse I get continuity to one of the relay connections. So did Ford hide the fuel pump relay and make it non replaceable? Also if this is the pump relay then what circuit energizes it? I need to make sure before I replace the fuse block.
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I have a 2003 F250 and dont have power at fuel pump, or fuse #30. I put power directly to fuel pump and it worked and truck fired right up.
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I have an 04 Ford Explorer XLT 4.0 Flex Fuel. There has been loss of power to fuel pump. Relay and fuse both good, replaced the inertia switch...still nothing. Could a FPDM (fuel pump driver module) have anything to do with this issue? Or what should I check next? I am definitely at a loss as to what the issue could be! I know it is fuel related because I used starting fluid and it started right up and run for just a few seconds, so that should rule out ignition I think.
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So the other day my 20amp maxi fuse for my fuel pump decided to blow, put a new one in & everything has been going good since. Is it just a fluke or is this an indication my pump is going out? I inspected wires off the pump & connections for corrosion & that's good, fuel filter is also new about 2 months ago & I always run #1 diesel with a little additive in the winter.
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I was wondering if it is possible, due to budget, to perform the electric fuel pump conversion in steps. By that I mean could I remove the mechanical pump and install the electric pump on the frame, but retain the stock filter housing and regulator? I would use high pressure hose and run from the stock pump supply line on top of the engine to the fuel bowl inlet and then use high pressure to run to a three way fitting, and a bit more hose to join the fitting to the stock lines running to the head. later as budget allow I will replace the filter assembly and regulator and then the lines to the heads.
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I was driving my truck then all sudden truck started losing power then slowly died. I restarted it, it was a lil shacky then died again. Iunscrewed the fuel filter and looked in the housing and there was lil fuel in bowl i turned the key to on position and bowl did not fill with fuel looked as if it were shooting some bubbles up(air) could it be outta of fuel???
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Little background- this is my first winter in a diesel truck. When I purchased it- it had 4 glow plug codes. Everyone around me just told me to plug it in and fix it later, that if I plugged it in, glow plugs don't matter much.
Had hard starts all last week with temps down to -20, turns out my block heater wasn't turning on due to a bad cord. Replaced cord end today. Let the oil temp get up to around 60F according to torque pro.
Still had a long crank despite warmer oil (15ish outside). Batteries dip to around 10V when plugs are on, then cranks at around 11V. Lots of white smoke which I know is normal.
I still had to fight with it a little bit to get it to start, as soon as she was actually going- runs flawlessly, no lope, no smoke. Runs and drives flawlessly. If I turn it off, she fires right back up instantly every time without hesitation, until she cools off again.
From what I'm seeing I'm thinking my batteries are fine, and my starter is probably fine. Are glow plugs making this big of a difference even though the truck is plugged in?
Truck has 0 codes when warm, 0 blow by, drives fantastic, Just under 300k miles. The only thing I'm thinking of is the glow plugs need swapped. I have a set of ZD11s sitting in the truck waiting for a warm day.
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Where the fuel pump is located on a 2000 F-350 7.3L Diesel? Also, how complex is replacing this?
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Went to start my truck (2003, 7.3 F250) one evening and I found the headlights on. No keys in the ignition and the truck hadn't been driven for 2 days. There was a strong smell of plastic and or electrical components burning in the cab. The truck started without a problem. I shut it off and the lights remained on. Cycling the MFS and light switch would not turn the lights off. I had to disconnect the batteries and leave it till time allowed for trouble shooting.
I've had it in my shop for three months now and this is what I've found so far.
-Source of the burn smell is coming from the fuse panel. More specific it's coming from a bulkhead that plugs into the panel. One pin connected to a White wire with 2 purple traces. I've traced this wire to one of 2 small relay packs in the engine compartment next to the driver side fender. I've replaced the relay this white/purple wire connects to as a precaution. This did not remedy my trouble.
-The local ford dealer told me this relay was for the A/C clutch. I located a 10amp fuse in position 10 and removed it. The headlights finally turned off.
-I started the truck and the A/C compressor clutch still engaged and ran. Smoke began to pour from the fuse panel once again. I killed the truck and head lights remained off. All done with the fuse in position 10 removed.
Here's where it gets weird!
-With the key/engine off and I turn the headlight switch on and MFS to low beam the fuel pump is running. Change the MFS to high beams and the fuel pump turns off.
I've looked over the wiring harness and there are no noticeable problems indicating multiple wires being shorted. How are all these issues related?
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I am in the process of replacing the complete front end on my 02 CC 4x4. Im replacing the hubs the lockers all seals and spindle axles. complete brakes with power stop and stainless brake lines ......I am going to switch back to the original automatic lockers. I am curious if has a simplified one line for the vacuum routing from the pump to the hubs?
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I have an 02 f250 230,000, first 7.3. I've owned it since Oct and put less than 6,000 miles on it. I have another cold crank no start. New glow plugs and Glow plug relay last weekend. Worked fine that weekend. It sat all week, then crank no start fri night, it was like 70 degrees for the high that day. Plugged it in over night and it started. Did not fire right up cranked it for a couple seconds. I drove it all day, started every time. Valve covers have 5,000 miles on them. Fuel Filter heater fuse not blown. But don't know how to check it for sure. And don't know where to go with it from here. Getting frustrated with crank no starts. No troubles found.
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I got a 2000 7.3l with 400,000 miles on it that decided to just not start anymore after I parked it for a couple days. Its always been a hard starter due to needing glow plugs but I can deal with that. it doesn't even try to fire anymore. I replaced the CPS (my tack bounces when cranking). The ICP has oil in the plug so I just unplugged it for now till I replace it.
I pulled the IPR and cleaned it really good and bench tested it with 12 volts and could here it clicking so I put it back in. I can get under the drivers door with the key on and hear the fuel pump running. I gain oil pressure on my dash gauge when cranking. I check all my fuses. my WTS light comes on . I just don't have any fancy scan tools to make this easier. Also just cause I was feeling lucky I just went out and bought 2 new batteries for it yesterday so we are good there.
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