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Mom was driving the truck and tried to fill it with gas, but it only took around $6 or $7 before it cut off. After that, she tried to start the car but it would not fire. It cranks but does not start.
It was towed to a mechanic where it started fine multiple times. The mechanic then took it to a nearby station where he put $10 and the same no-start happened. I don't believe he had a problem fueling it. He's trying to determine what is causing it, but I thought I'd post here to see if anyone has any ideas. Later the car will start fine and will start repeatedly.
I do not know anything else about the no-start condition, fuel pressure, spark etc. It just has happened twice now right after fueling. Plugs and wires, basic maintenance is up to date. I believe the truck has around 125K.
When your truck is in the no start mode, is the Check Engine light on? If so, does the CEL continue to be on when it starts normally? Either way, it may be worth your while to go to an auto parts store that offers free checks and have them pull the codes. If you have any codes stored, copy them and post them here so we can be of help to you.
The CEL is off with no stored codes. The mechanic has now been unable to duplicate the problem again for testing. I'm not sure that the truck will not have to be driven until the problem is replicated but am at a loss at what else to do.
I was just hoping that this was something that someone had experienced and could shed some light on, but thanks.
I thought I'd post on this again to see if anyone else had ideas. The truck did the same today. Stopped for fuel. Engine would turn over but no start. Allowed it to cool down for a while, perhaps 45 mins to hour, and it started like nothing ever happened.
No CEL.
The truck has been driven a few times with no issues, some with quick restarts after turning it off, some with time for it to cool down. It has not, however, needed fuel before now due to not being used much with the problem unresolved and for other reasons. Today it is refueled and does it again.
It happened with my parents driving it. I'll have to see if I can get it to duplicate it for me for testing, but I have not been able to duplicate it in the past.
So, it only does this after fueling up and at no other time?
Some things that come to my mind are: fuel cap not sealing right; something getting stirred up in the tank and momentarily blocking fuel flow; and fuel filter.
Cap is setting no evap code and seems to be fine. Fuel filter has been changed in recent history, but I don't have the mileage. It would certainly be something I'd change when working on it to rule it out. Fuel tank sediment is possible, but I wouldn't know without dropping the tank.
Is there anything on the vapor side that could cause it while fueling? Something in the fueling seems to be causing it either in the vapor or fuel pump. The first time the fuel cut off prematurely... Hasn't happened again yet.
Cap is setting no evap code and seems to be fine. Fuel filter has been changed in recent history, but I don't have the mileage. It would certainly be something I'd change when working on it to rule it out. Fuel tank sediment is possible, but I wouldn't know without dropping the tank.
You may be able to tell by checking the filter - you may have to cut it open, but I have seen filters plugged by sediment - to the point where there was just a tiny pinhole for the fuel to get through...
Just a thought...
Originally Posted by phil3402
Is there anything on the vapor side that could cause it while fueling? Something in the fueling seems to be causing it either in the vapor or fuel pump. The first time the fuel cut off prematurely... Hasn't happened again yet.
Possible I guess, but the only way I know to check it is to do a visual inspection of the vent tube/hose.
When it reoccurs try giving it a shot of starting fluid to see if it fires and runs till starting fluid is burned up. That would rule out the ignition . Also when it occurs has anyone tried holding pedal down slightly while cranking to see if it would start. Could be a getting flooded with gas vapors due to a defective evap system.
I haven't had it when it happened to floor the pedal with clear flood mode. It's definitely worth a shot. It's also exactly what I was just checking on Rock Auto, pricing on the evap canister and purge valve. I think this is on the right track.
If it hasn't been done lately a cleaning of the MAF sensor ( see link below) wouldn't be a bad idea also. Sometimes if mine doesn't fire up immediately I hold the pedal down slightly ( as opposed to wide open throttle) while cranking and that always seems to do the trick.
I suggest you take it to Ford to have the troubleshooting done correctly the first time. No point in wasting time chasing down ghosts.
Meanwhile, fuel truck with engine running is the obvious solution.
Static electricity might be causing a short in the fuel pump power system. Check with ether in air box the next time it happens, as was suggested earlier. Just put a can behind the seat right now then it's available the next time it happens.
Might be a fuel pump failing. Just let Ford chase it down. That would be how I would solve the issue.
I don't always have as much confidence in the dealership as some. Concerning the dealership on this one, they are the same ones that told the in-laws that their town car may need a new transmission after it was in a few times. 20 minutes under the hood and I found a misfire ... I have other similar incidents with different mechanics.
That said, this is my dad's truck. I finally got it to duplicate with no fueling involved. Engine cold. Hooked up the pressure gauge and no fuel pressure, no hum from the pump. Fuse good, swapped relays. Fuel pump is likely shot. Haven't been able to get it up in the air yet to check for power.
Now it looks like I'll likely need to find out which one of the many fuel pumps listed this thing needs ...
If fuel pump replacement is called for the easier way is to remove bed fasteners and fuel filler neck, unplug wiring harness and slide back bed to access the pump.
Mom was driving the truck and tried to fill it with gas, but it only took around $6 or $7 before it cut off. After that, she tried to start the car but it would not fire. It cranks but does not start.
It was towed to a mechanic where it started fine multiple times. The mechanic then took it to a nearby station where he put $10 and the same no-start happened. I don't believe he had a problem fueling it. He's trying to determine what is causing it, but I thought I'd post here to see if anyone has any ideas. Later the car will start fine and will start repeatedly.
I do not know anything else about the no-start condition, fuel pressure, spark etc. It just has happened twice now right after fueling. Plugs and wires, basic maintenance is up to date. I believe the truck has around 125K.
Thanks for any input.
Might be a fuel pump power relay heat soak problem, so try swapping it with a like power relay not needed to run the engine & see how it goes.
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