Intermittent Stalling
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Intermittent Stalling
Hello all! I have a 2010 F150 SuperCrew 5.4L XLT with just over 100k miles. The other day I was sitting at a stop light and didnt notice till the light turned green that the engine died. I put it in neutral started right up put it in drive and carried on, no further issues. 3 days later I was on my way to a friends house and it died at a stop sign. Had trouble starting but once it did I drove for about 5 miles with various stops and no issues. Then it started dying at ever stop and had more and more difficulty getting it started again. Finally got to the friends house and let it sit for about 30 minutes. Had trouble starting but once it did I drove about 12 miles home with no issues.
Drove around Monday no issues. Tuesday no issues. Today is started acting up again.
Drove 25 miles to work and when I came to a stop after exiting the freeway it died and continued to do so until I got to work. Had a hard time keeping it running at slow speeds just to get to a parking spot.
After work I fired it up with no problems and drove home with no issues.
Troubleshooting so far...
Took it to O'Riley's Monday and got the P0150 and P0130 error codes.
Visual inspection of wiring to MAS and PCM, as well as any tubes and hoses in the engine bay. Nothing cracked broken or visibly damaged. Visually inspected the O2 sensors no evident damage to wiring. Visually inspected the PCM relay and found the very slightest bit of corrosion, cleaned and swapped it with the starter relay just to see if the problem follows.
Not getting any lack of power, no decrease in fuel efficiency, no misfiring or rough idling.
Stopped at the dealership and they offered to take it for a day and "look it over" Being a former aircraft mechanic and having dealt with many intermittent faults I know what a pain this can be so I was a bit reluctant to leave it with the dealership without a hard fault.
Having done some reading I know that the fault codes dont necessarily mean the O2 sensors are bad and that it could be a multitude of things causing those errors to show up.
Although I believe it is unrelated the guy at O'Riley mentioned the B1676 Battery Pack Voltage Out of Range error code as well.
If anyone has a suggestion I would love to hear it.
BTW I already suggested trading it in on a new ecoboost mustang but that idea was shot down by the wife.
Drove around Monday no issues. Tuesday no issues. Today is started acting up again.
Drove 25 miles to work and when I came to a stop after exiting the freeway it died and continued to do so until I got to work. Had a hard time keeping it running at slow speeds just to get to a parking spot.
After work I fired it up with no problems and drove home with no issues.
Troubleshooting so far...
Took it to O'Riley's Monday and got the P0150 and P0130 error codes.
Visual inspection of wiring to MAS and PCM, as well as any tubes and hoses in the engine bay. Nothing cracked broken or visibly damaged. Visually inspected the O2 sensors no evident damage to wiring. Visually inspected the PCM relay and found the very slightest bit of corrosion, cleaned and swapped it with the starter relay just to see if the problem follows.
Not getting any lack of power, no decrease in fuel efficiency, no misfiring or rough idling.
Stopped at the dealership and they offered to take it for a day and "look it over" Being a former aircraft mechanic and having dealt with many intermittent faults I know what a pain this can be so I was a bit reluctant to leave it with the dealership without a hard fault.
Having done some reading I know that the fault codes dont necessarily mean the O2 sensors are bad and that it could be a multitude of things causing those errors to show up.
Although I believe it is unrelated the guy at O'Riley mentioned the B1676 Battery Pack Voltage Out of Range error code as well.
If anyone has a suggestion I would love to hear it.
BTW I already suggested trading it in on a new ecoboost mustang but that idea was shot down by the wife.
Last edited by Soscure; Jun 1, 2016 at 07:24 PM. Reason: forgot something