Nissan Maxima not shifting into O/D
2001 Nissan Maxima about 207k miles
Previously it did have some bad shifting issues
P0744 and wash shifting very bad
Fluid was very dark. At 202k miles I did drain and fill and a 2nd drain and fill at 205k miles
ATF both times looked black but 2nd time looked a little better. Shifting got a lot better both times. It use to have issues with 1-2 shift and starting from complete stop.
At 206k miles I pumped out about 16oz
ATF and added 16oz cab is seafoam trans tune
Very soon after it was shifting a lot smoother
And the 1-2 shift issue was smoother
And later in starting from a complete stop
After adding seafoam vid
2nd drain and fill vid with Lucus and valvoline maxlife synthetic ATF
Now it’s not shifting
into O/D D4 consistently but other shifting
Is a lot better
Plans in about 700 miles do another ATF drain and fill but with out additives to see how it is
I will be using full synthetic ATF
Could this be also be
transmission fluid temperature sensor failing
Throttle position sensor (TPS) failing
Fluid too think from first 2 drain and fills using Lucus additive.
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