I jacked my 2001 Nissan Quest off the ground to change the strutes.
Which was done without a problem, but when I lowered the vehicle
it will not drive in any gear, and in all the gears it is in, all it does is
grind from the transmission.
I checked the fliuds and linkage, and both are fine. I am about to change
the trans fliud and filter, what I am needing to know is what else it could
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Could be a bad coil,ignition module, crankshaft sensor, distributor cap, distributor, ignition rotor or a broken timing belt. It could also be that there has been a loss of power or ground to components in the ignition system or even a bad Engine Control Module.
Well, there's a Pin that holds the transmission gears in place when you've got the car in park. This Pin blocks the gearbox from moving... either the pin isn't fully engaging the gearbox, or it's just broken.
If it's not engaging, it's just a question of adjusting the shifter linkage. That can be fixed relatively quickly.
However, the accompanying grinding sounds really make it sound like it's broken.
Safely jack the car up, use jack stands, then using your jack and a piece of 2x4 wood between the jack and the engine block raise the jack until you just touch the engine. then loosen the motor mount bolts, before you remove the bolts raise the engine up slightly to take the weight off the mounts. then remove motor mount bolts and install new mount, install bolts tighten per torque spec by manufacturer and lower engine, remove jack and jack stands. done.
Get a piece of 2x4 and a floor jack. Support the bottom of the engine with the 2x4 under the oil pan. Slightly raise the jack untill slight tension is felt. Loosen the top motor mout bolts and remove the mount. Install the new mount lower the jack and retighten the mount. Do the same for the rear or bottom mounts witch ever applies. HTH
If you have a way to get it off the ground (i.e. ramps) then its a snap. First, go buy the proper part, drive it up on the ramps and set the parking brake. Then look for any cables and wire harnesses that are connected to the transmission itself and disconnect them, remembering where they go. Next is to have a floor jack under the transmission to hold it while you loosen and then take the transmission mount bolts out. Lower the transmission down and change the clutch plates. Follow the same procedure in reverse and it shouldn't take you too long to have it back on the road with a new clutch done by you!
sounds like your automatic transmission is failed and grinding itself up. How often have you had the transmission fluid changed? You are going to have to REPLACE the transmission and not even try to repair it. Once they start grinding things up , they are not repairable.
THE ORIGINAL VIBRATION MAY HAVE BEEN TIRES.IF THE LUG NUTS WERE NOT TORQUED BY HAND BUT OVERTIGHTED W/AN AIR RATCHET THE ROTORS MAY HAVE BEEN WARPED.TAKE IT BACK TO WERE THE TIRES WERE INSTALLED AND ASK THEM TO CHECK IT OUT.