01SLE
Member
- Joined
- Mar 22, 2014
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2015 SLT 4x4 49k miles
I'm guessing this is a fuel pump but if anyone has any other ideas please let me know. Only issue I've had with this truck is on cold starts it would take 2-3 seconds of cranking to start which is odd for any well running, newer vehicle.
I drove about 110 miles yesterday and 3 miles from home I was making a right hand turn into at an intersection and I lost almost all engine power. Engine stumbled around 300rpm and I limped into a parking lot before it died completely. Felt like half the cylinders quit.
I sat there about 3 minutes on my phone setting up road side assistance. It was hot as hell here, 119 degrees yesterday, so I wanted to move the truck into a shady parking spot. I hit the start button and it cranked for a good 5 seconds and fired up to a normal idle. I moved the truck 50 feet and it ran fine and shut it off. After another few minutes I wondered it I could just make it home because of the heat. The truck started right up and I hit the road. After 1 miles, the same thing happened and I pulled off the road. Tried to start it immediately and it cranked for 5-6 seconds and turned over into a stumbling idle at 300rpm before dying.
I waited another few minutes and tried again and 5-6 seconds of cranking into a smooth idle and made it another mile. CEL came on this time when it died. Did this one more time before getting home.
So basically the truck would start and run for a few minutes after a few minutes of sitting but not immediately after dying.
It absolutely felt and acted like a fuel delivery problem and the CELs are P2635 Fuel Pump A Low Flow, P018B Fuel Pressure Sensor B Circuit Range/Performance, P0506 Idle Air Control System RPM Lower Than Expected (pending fault), and a B2AAA (pending fault).
Seemed as though the fuel pump would overheat and stop. After a few minutes of cooling it would run then heat up shut off again. Fuel level was just over half a tank when this happened. Because of the previous cold starting issue, it makes me think that there's always been an issue with the fuel pressure delivery either a pin hole leak somewhere in the system causing fuel to drain back into the tank from the lines while off or the pump has always been weak.
Are fuel pumps covered by the 100k drivetrain warranty? I'm guessing not.
Any decent write ups/videos on 2015+ fuel pump access? I'm assuming I'll be dropping the tank
I'm guessing this is a fuel pump but if anyone has any other ideas please let me know. Only issue I've had with this truck is on cold starts it would take 2-3 seconds of cranking to start which is odd for any well running, newer vehicle.
I drove about 110 miles yesterday and 3 miles from home I was making a right hand turn into at an intersection and I lost almost all engine power. Engine stumbled around 300rpm and I limped into a parking lot before it died completely. Felt like half the cylinders quit.
I sat there about 3 minutes on my phone setting up road side assistance. It was hot as hell here, 119 degrees yesterday, so I wanted to move the truck into a shady parking spot. I hit the start button and it cranked for a good 5 seconds and fired up to a normal idle. I moved the truck 50 feet and it ran fine and shut it off. After another few minutes I wondered it I could just make it home because of the heat. The truck started right up and I hit the road. After 1 miles, the same thing happened and I pulled off the road. Tried to start it immediately and it cranked for 5-6 seconds and turned over into a stumbling idle at 300rpm before dying.
I waited another few minutes and tried again and 5-6 seconds of cranking into a smooth idle and made it another mile. CEL came on this time when it died. Did this one more time before getting home.
So basically the truck would start and run for a few minutes after a few minutes of sitting but not immediately after dying.
It absolutely felt and acted like a fuel delivery problem and the CELs are P2635 Fuel Pump A Low Flow, P018B Fuel Pressure Sensor B Circuit Range/Performance, P0506 Idle Air Control System RPM Lower Than Expected (pending fault), and a B2AAA (pending fault).
Seemed as though the fuel pump would overheat and stop. After a few minutes of cooling it would run then heat up shut off again. Fuel level was just over half a tank when this happened. Because of the previous cold starting issue, it makes me think that there's always been an issue with the fuel pressure delivery either a pin hole leak somewhere in the system causing fuel to drain back into the tank from the lines while off or the pump has always been weak.
Are fuel pumps covered by the 100k drivetrain warranty? I'm guessing not.
Any decent write ups/videos on 2015+ fuel pump access? I'm assuming I'll be dropping the tank