2.7 ecoboost stalls, dies after towing
#1
2.7 ecoboost stalls, dies after towing
After several hours of towing a 5000# travel trailer @ 65-70 mph, the engine will stall and die after coming to a stop. It will restart, but will only run for a second or two before it dies again. Check engine light does not come on. It will start and die like this repeatedly. To get going again, it will stay running if I hold throttle open a little and take off quick. Took to dealer to get it checked twice. No codes are found, dealer can't replicate problem. Says they can't do anything to fix.
This is very disconcerting , as we travel to some remote places, don't want to get stranded.
I've found two other reports of this problem in these forums, but no solution was reported. With millions of these on the road, others must be having similar issues.
Any new information on this issue?
This is very disconcerting , as we travel to some remote places, don't want to get stranded.
I've found two other reports of this problem in these forums, but no solution was reported. With millions of these on the road, others must be having similar issues.
Any new information on this issue?
#2
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#3
#4
The last one I saw that was similar was some issue with the radiator. IDR, whether they flushed it or replaced it, but they were able to run a test on the radiator to determine that its function was sub-standard.
Speculation was that "something" had been embedded in the radiator, and was restricting flow.
Speculation was that "something" had been embedded in the radiator, and was restricting flow.
#7
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#8
#9
There is a similar thread in this section.
It is my suggestion you consider that it may be "vapor lock" of the fuel.
Towing requires a lot of energy to be expended; we all know that. And the 2.7L is a very power-dense engine to begin with. So consider what happens ...
- towing generate high heat loads
- slowing or stopping the vehicle greatly reduces airflow which would otherwise be dissipating heat energy from the engine bay
- low fuel conditions (not a full tank) reduces the available mass to "cool" the fuel, prior to being sent up for it's return trip to the engine bay (the lower the fuel level, the less fuel mass to absorb heat before heading back to the engine
I don't have one of these trucks, so I cannot help replicate or offer any specific advice. But I'd suggest tracing the fuel lines and seeing if they travel close/near any heat sources like headers, cats, turbos, heads, etc; anywhere heat will be concentrated.
Two generic suggestions:
1) add insulation anywhere you can to shed heat away from the fuel lines
2) consider putting a fuel cooler in the supply side of the fuel line; many generic ones to choose from in the aftermarket (a good tube/fin cooler with perhaps 75 sqr-in or more would likely do fine
I cannot assure you that vapor lock is the cause; but it just makes sense given the conditions both threads speak of.
It is my suggestion you consider that it may be "vapor lock" of the fuel.
Towing requires a lot of energy to be expended; we all know that. And the 2.7L is a very power-dense engine to begin with. So consider what happens ...
- towing generate high heat loads
- slowing or stopping the vehicle greatly reduces airflow which would otherwise be dissipating heat energy from the engine bay
- low fuel conditions (not a full tank) reduces the available mass to "cool" the fuel, prior to being sent up for it's return trip to the engine bay (the lower the fuel level, the less fuel mass to absorb heat before heading back to the engine
I don't have one of these trucks, so I cannot help replicate or offer any specific advice. But I'd suggest tracing the fuel lines and seeing if they travel close/near any heat sources like headers, cats, turbos, heads, etc; anywhere heat will be concentrated.
Two generic suggestions:
1) add insulation anywhere you can to shed heat away from the fuel lines
2) consider putting a fuel cooler in the supply side of the fuel line; many generic ones to choose from in the aftermarket (a good tube/fin cooler with perhaps 75 sqr-in or more would likely do fine
I cannot assure you that vapor lock is the cause; but it just makes sense given the conditions both threads speak of.
#10
new engine
After several hours of towing a 5000# travel trailer @ 65-70 mph, the engine will stall and die after coming to a stop. It will restart, but will only run for a second or two before it dies again. Check engine light does not come on. It will start and die like this repeatedly. To get going again, it will stay running if I hold throttle open a little and take off quick. Took to dealer to get it checked twice. No codes are found, dealer can't replicate problem. Says they can't do anything to fix.
This is very disconcerting , as we travel to some remote places, don't want to get stranded.
I've found two other reports of this problem in these forums, but no solution was reported. With millions of these on the road, others must be having similar issues.
Any new information on this issue?
This is very disconcerting , as we travel to some remote places, don't want to get stranded.
I've found two other reports of this problem in these forums, but no solution was reported. With millions of these on the road, others must be having similar issues.
Any new information on this issue?
#11
Stalling while towing
Although I have not tried it yet, you can log what you engine is doing as its running using Forscan and OBD link MX. You will have to download the Forscan app for android and purchase the OBD link MX.
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#12
2.7 ecoboost
I I just had the same issue over this last weekend family day passing a vehicle when all of a sudden it just died shifted down by the time I stopped it wasnt running anymore engine light flashing restarted it and it was only idling at half speed got it towed to nearest Ford and today I got a voiceail saying bank 1 cylinders are all dead and worst of all I just got heads replaced 2000 km ago because the TSB issue the were having with them
#13
#14
2.7 issues
my issue was solved sprocket for timing chain broke at the crankshaft not letting time chain turn which shut down one of the heads valve stayed open Pistons came and hammered on to the valves fixed was basically new motor after 28 days I finally got my truck back with no compensation for me and being stranded in Alberta so I'm finally back home in Saskatchewan
#15
Same thing is happening to mine as well. Usually after towing for 200 plus miles at highway speeds