I know this has been discussed, but I've haven't found any definitive answers, so here goes: My 90 GXE has been slow shifting when cold, even in this mild fall weather. It seems it holds the rpm's for a few moments before finally upshifting. Also, it's slow to downshift and seems to build rpm's before dropping into the next lower gear. This tranny's been rebuilt ~6 or 7 years ago. In really cold weather (below 35F) it won't upshift into 3rd until it's been running for about 2 miles. Definitely temperature related there. It's also on occasion, locked into 3rd and won't downshift until I shut down, restart and get going again, but this is very infrequent and usually happens in the morning. The power light flashes about 16x and then goes out. I can't find any diagnoses for 16 quick flashes in the shop manual.
This is what I'm thinking it could be:
-dirty valve body (I took it out and cleaned, then flushed fluid about 4 years ago. Have changed fluid 2x since)
-intermittently faulty or sticking shift solenoid
-worn oil pump not providing enough line pressure
-bad/old tranny temperature sensor (inside valve body)
-too thick ATF (using Dexron III) Maybe different, thinner fluid??
NissTech, do you have any experience and/or answers for these symptoms? Thanks for any help or direction anyone might offer!
Chris
90 & 94 GXE's