What causes stiff gears in the morning in Nissan Pathfinder 2006 model? on 1996 Nissan Pathfinder

When the engine heats up the problem disappears.

by in Tacoma, WA on August 29, 2013
2 answers 2 comments
ANSWER by on August 29, 2013
Wrong type (viscosity) lube in transmission is one thing it could be. Hydraulic clutch problem is another, one or the other is about ALL it can be. Does it shift ok, or better, with the engine OFF while cold? Does the clutch pedal feel different after it warms up (more pedal)? If it is difficult to put in first or reverse when cold, try pumping the clutch pedal to see it it helps. Post results for more info.
COMMENT by on August 29, 2013
Thank you, yes the gears shift very easily when the engine is off.
COMMENT by on August 29, 2013
You have a clutch problem, i have seen this brfore, on the one I fixed it was the slave cylinder! This one would refuse to shift into gear until you pumped the clutch pedal SEVERAL times. It would then be ok the rest of that day until next morning,same thing! You just asseum it's because the engine warms up, actually it is the act of just using the clutch that makes it start working for that time. All of this is just my theroy, i could be completely wrong!! Let us know what you find out.
ANSWER by on August 29, 2013
wrong oil in trans, its poss to thick and shifts hard until fluid gets warm and thins out