Hello,

Any help and advice will be greatly appreciated. Two weeks ago I got the dreaded P1778 code with 156,000 on my 2013 quest SL. I dropped the transmission pan and replaced the stepper motor, which was right in front of me. After replacing and filling with cvt transmission fluid, I took the van for a test drive. Everything drove great and even shifted better than before. A week later on a road trip the van started to not shift out of first gear when stopping for breaks on the road trip. Once I pulled over and shut off the van for about ten minutes, I would start driving and everything was good until the next exit I took or slowed down from highway speed (70mph). So last night, the first day being back home after road trip, I drained some of the transmission fluid. Now when I replaced the stepper motor and re filled the trans fluid I filled it to the top of the hash marks when the engine was cold. After my test drive the dip stick still showed at the top of the hash marks warm. So now I'm wondering if I overfilled the transmission. Now since I've drained some out the dipstick shows fluid between the two notches for cold but at the bottom of the hash marks. Then I started the van, let it warm up to normal temps and shifted through out the gears. When I checked the dipstick while the engine was running, the fluid level was at the very bottom tip of the dipstick. So cold or engine off the fluid is between the notches but just under the hash marks. When the engine is running, warm and after shifting through the gears the fluids are at the very bottom of the dipstick tip. Where should the fluid level be at and should I be paying attention to the fluid level either hot or cold? Please any help or clarification. I've looked at the Nissan factory service manual and it doesn't specify where the fluid should be at on the dipstick other than the add and full marks.