2018 3.5 eco long crank but starts and runs fine
12-15-2023, 04:09 PM
#1
2018 3.5 eco long crank but starts and runs fine
Hi all,
I noticed recently that when the truck is cold, it can take 3-4 seconds for truck to crank before starting. Everything then runs as normal except auto stop\start has message of "unavailable". Once started, I can immediately shut off the truck, and it restarts normally, auto stop\start works normally. This extended crank is only after the vehicle sits several hours.
Yesterday for the first time, it did the extended crank and lit the check engine light, however cruise control, etc. all worked as normal (I mention cruise control only because in my limited experience, CC is one of the first things to be disabled for "serious" faults).
Troubleshooting:
My Torque app detected P00c6 code. Based on reading here, I listened to truck as I turned key to "run", and I don't hear any noise like the tank pump which I am pretty sure I always used to hear. I checked the "power train control module" 10-amp fuse in slot 16 and it ohmed good.
I cleared the code and ran it today. It has done the extended crank twice (once first start of the morning, and then after about sitting 10 hours at work) - no check engine light so far.
I am thinking low pressure fuel pump in gas tank, or fuel pump control module over the spare tire? Any input to further isolate is greatly appreciated. 93k miles on vehicle. Thank you!
I noticed recently that when the truck is cold, it can take 3-4 seconds for truck to crank before starting. Everything then runs as normal except auto stop\start has message of "unavailable". Once started, I can immediately shut off the truck, and it restarts normally, auto stop\start works normally. This extended crank is only after the vehicle sits several hours.
Yesterday for the first time, it did the extended crank and lit the check engine light, however cruise control, etc. all worked as normal (I mention cruise control only because in my limited experience, CC is one of the first things to be disabled for "serious" faults).
Troubleshooting:
My Torque app detected P00c6 code. Based on reading here, I listened to truck as I turned key to "run", and I don't hear any noise like the tank pump which I am pretty sure I always used to hear. I checked the "power train control module" 10-amp fuse in slot 16 and it ohmed good.
I cleared the code and ran it today. It has done the extended crank twice (once first start of the morning, and then after about sitting 10 hours at work) - no check engine light so far.
I am thinking low pressure fuel pump in gas tank, or fuel pump control module over the spare tire? Any input to further isolate is greatly appreciated. 93k miles on vehicle. Thank you!
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JG Delta (03-08-2024)
03-08-2024, 05:35 PM
#2
2019 Lincoln Navigator long crank after sitting
Hi all,
I noticed recently that when the truck is cold, it can take 3-4 seconds for truck to crank before starting. Everything then runs as normal except auto stop\start has message of "unavailable". Once started, I can immediately shut off the truck, and it restarts normally, auto stop\start works normally. This extended crank is only after the vehicle sits several hours.
Yesterday for the first time, it did the extended crank and lit the check engine light, however cruise control, etc. all worked as normal (I mention cruise control only because in my limited experience, CC is one of the first things to be disabled for "serious" faults).
Troubleshooting:
My Torque app detected P00c6 code. Based on reading here, I listened to truck as I turned key to "run", and I don't hear any noise like the tank pump which I am pretty sure I always used to hear. I checked the "power train control module" 10-amp fuse in slot 16 and it ohmed good.
I cleared the code and ran it today. It has done the extended crank twice (once first start of the morning, and then after about sitting 10 hours at work) - no check engine light so far.
I am thinking low pressure fuel pump in gas tank, or fuel pump control module over the spare tire? Any input to further isolate is greatly appreciated. 93k miles on vehicle. Thank you!
I noticed recently that when the truck is cold, it can take 3-4 seconds for truck to crank before starting. Everything then runs as normal except auto stop\start has message of "unavailable". Once started, I can immediately shut off the truck, and it restarts normally, auto stop\start works normally. This extended crank is only after the vehicle sits several hours.
Yesterday for the first time, it did the extended crank and lit the check engine light, however cruise control, etc. all worked as normal (I mention cruise control only because in my limited experience, CC is one of the first things to be disabled for "serious" faults).
Troubleshooting:
My Torque app detected P00c6 code. Based on reading here, I listened to truck as I turned key to "run", and I don't hear any noise like the tank pump which I am pretty sure I always used to hear. I checked the "power train control module" 10-amp fuse in slot 16 and it ohmed good.
I cleared the code and ran it today. It has done the extended crank twice (once first start of the morning, and then after about sitting 10 hours at work) - no check engine light so far.
I am thinking low pressure fuel pump in gas tank, or fuel pump control module over the spare tire? Any input to further isolate is greatly appreciated. 93k miles on vehicle. Thank you!
03-10-2024, 08:46 AM
#3
I found a YouTube video where someone with similar experience found the fuel line inside the tank was chaffed and had a small hole preventing it from operating as needed; hoping that is all it is.
Let me know if you get it fixed. Best!