Thanks to everyone who has contributed to this thread so far. I've been digging into this issue on my 07 Yukon Denali- 125k miles. Some facts on my vehicle-
10k miles on rebuilt transmission
Engine operating oil pressure is measuring roughly 10-12 PSI at idle, 20-30 psi on highway from 2k-3k rpm. Oil Pressure went up after oil change by a few psi each.
I have replaced the Cam position sensor
Mobil 1 5W-30, M113A Filter (change described in timeline below-)
After stall failure described in this thread I have the most luck with waiting 20 mins and flooring the accelerator when I go to start it again.
Stalling has occurred on 4 occasions-
- Mid November- First after a 2 hour drive on the highway as I got off the exit it started to sputter a bit. Parked it for an hour. Went to start it up and it just spun the starter motor as described many times in this thread. Floored the accelerator and got it to fire up. Drove two hours on the highway home without issue
- One month (Today)- Bought a trailer that weighs about 2500 pounds. First time it happened 15 minutes after being in tow mode through some back roads at less than 40 miles per hour as I stopped at a stop sign.
- Second time today- as I completed the 30 minute journey from item 2 as I came off the highway in Tow Mode.
- Oil needed to be changed, so I changed it hoping it would help solve the problem. I change the oil and filter at this point
- Third time today- as I bring the trailer to its final destination just as I coast into the driveway after a 25 minute drive in tow mode.
- Drop the trailer off and I drive it 30 mins back making 2 additional stops and have no issues whatsoever
I had hoped and planned to take this new trailer on a road trip this weekend. I have until Saturday to get it ready. Any recommendations on some steps I can take to reduce my risk on taking this trip?
Any and all feedback is appreciated.