I suggest replacing your MODULATOR VALVE on the transmission. This valve, under pressure from the engine, controls how the vehicle shifts. It is possible that the valve is good, and you just have a leak in the rubber hose that connects to the valve. I have not heard any issues from the 02' Nissan Altima about the transmission. If the valve is disconnected from the hose, you should notice some smoke either from the transmission, or under the hood by the exhaust.(NOT ALWAYS NOTICEABLE) Second, the automatic transmission has several internal components, that if one fails, can cause a cascade of issues. The TORQUE CONVERTER under cyntrifical force, converts the power from your engine, into a hydrolic pump that feeds the transmission. If this becomes clogged, the transmission will not shift correctly. A transmission flush might cure your shifting issue. During the flush, replace the transmission filter. As if his is clogged for any reason, it will not supply enough fluid to the transmission, and could cause permanent damage to the transmission.I hope this helps. Good luck.
SOURCE: 1990 300zx 2+2 Non Turbo
That means the transmission is going into Limp mode - something's wrong that is making the car believe it can be damaged by the speeds the upper gears will allow you to reach. For starters, check the fluid level (or just change it - it's not a bad idea), and disconnect the battery for an hour or so to put the ECU into relearn mode - this will clear current fault codes and allow you a fresh start to see if the condition reappears, or if it was a fluke failure of some part that caused the car to repeatedly go into limp mode.
SOURCE: 1998 nissan altima gxe -ignition problem
Hi what is happening is that your turn off your car and left the wheels turned to one side and specially if your car is parke in a hill what you have to do is to force the steering wheel to the same direction of your wheels this will free up the ignition switch it is going to be hard let me tell you but it will work and this is why your shift don't work once you have the ignition switch free then your shift will work again
SOURCE: 2002 Altima engine won't start, but key does turn in the ignition
Is there a clicking sound? The first thing that I would check is to make sure that the starter motor is getting voltage. If it is getting voltage then I would say that the motor is bad and needs to be replaced. If it is not getting voltage then it could be a bad fuse, relay, or a bad ground. All of these are probabilities. The last thing that I would check for is a bad ignition switch especially since the accessories come on.
SOURCE: timing marks for a 2002 nissan altima 2.5
Hello! I have attatched a figure showing proper timing chain and gear orientation. Hope you find this information helpful!
SOURCE: 2003 Nissian Altima the steering wheel is hard to turn
Either your rack and pinion has gone out or your power steering pump is bad, or out of fluid.
As you stand in front of you car with the hood open, look down and to the left. You are looking for the pwer steering pump resevior. It will have 2 hoses coming out of it and a cap that has a picture of a steering wheel.
Open that and you can check the fluid.
Please let me know what you find.
http://repairhelpcenter.blogspot.in/2012/02/car-will-not-move-when-in-gear.html
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http://technoanswers.blogspot.com/2012/01/mercedes-benz-transmission-sticks-in.html
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Transmission not engaging in first
gear?
http://technoanswers.blogspot.com/2012/01/mercedes-benz-not-engaging-in-first.html
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Vehicle only goes
in First gear?
http://howtobyme.blogspot.com/2011/11/chrysler-pt-cruiser-only-goes-in-first.html
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Car is stuck in park
and the shift will not move?
http://howtobyme.blogspot.com/2011/08/car-is-stuck-in-park-and-shift-will-not.html
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Engine will not go out of park mode?
http://technoanswers.blogspot.in/2012/02/2002-nissan-sentra-will-not-go-out-of.html
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Car stuck in park?
http://technoanswers.blogspot.in/2012/02/nissan-sentra-stuck-in-park.html
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Car will not come
out of Park?
http://howtobyme.blogspot.com/2011/11/car-will-not-come-out-of-park.html
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Automatic
transmission will not go into high gear?
http://howtobyme.blogspot.com/2011/11/automatic-transmission-will-not-go-into.html
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Car wont downshift
sometimes?
http://schematicsdiagram.blogspot.com/2011/12/car-wont-downshift-sometimes.html
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Transmission
will shift into drive?
http://schematicsdiagram.blogspot.com/2011/12/buick-park-avenuetransmission-will.html
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Auto wont shift
from park?
http://schematicsdiagram.blogspot.com/2011/12/ford-taurus-wont-shift-from-park.html
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Car Transmission
will not go into Park mode?
http://schematicsdiagram.blogspot.com/2011/12/car-transmission-will-no-go-into-park.html
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Shift indicator
directly goes to 2nd when key is turned ON?
http://schematicsdiagram.blogspot.com/2011/12/shift-indicator-directly-goes-to-2nd.html
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Third gear missing
and engine losing power?
http://schematicsdiagram.blogspot.com/2012/01/third-gear-missing-and-engine-losing.html
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Vehicle has whining sound in gear?
http://technoanswers.blogspot.com/2012/01/chevrolet-silverado-has-whining-sound.html
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Hard to shift gears on Manual
transmission?
http://technoanswers.blogspot.com/2012/01/hard-to-shift-gears-on-manual.html
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Car hard shift at slow speeds?
http://technoanswers.blogspot.com/2012/01/car-hard-shift-at-slow-speeds.html
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Automatic transmission shift lever
hard to move on cold mornings?
http://technoanswers.blogspot.com/2012/01/automatic-transmission-shift-lever-hard.html
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Gear shifts hard?
http://schematicsdiagram.blogspot.in/2012/02/2000-nissan-maxima-shifts-hard.html
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Vehicle noticed sluggish
delayed shifts while driving?
http://schematicsdiagram.blogspot.in/2012/03/vehicle-noticed-sluggish-delayed-shifts.html
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This will help.
Thanks.
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