Low Fluid level. If the car has a three-speed automatic, the torque converter clutch solenoid is locked up. Unplug it from the transmission, and see if it still dies when put in gear.
no revs
you would need to change the differential gears to change the gear drive.
Mechanical failures causes incorrect gear ratio in the VW Touareg. Lots of torque is what causes the incorrect gear ratio in VW Touareg.
I went crazy looking for the door jamb switch on my 2001 Denali. It's attached to the locking mechanism inside the door. The latch has a gear which drives a mating gear that activates the switch. When you pull the door handle, the latch opens and the gear moves.
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This engine does not have a timing belt, it is gear-driven. Possibly, you have broken gear teeth, causing the timing to be out of order.
bog down in first gear and then it strtes to shift
low gear oil or gears are worn.
Pitting= Too high surface pressure on gear or lack of lubrication
check your crank gear it is worn out replace the gear and key
the metal wears down from the gear turning metal against metal
Gear shifting has little to do with batteries, or your car's electrical system. If your car is stuck in one gear, your clutch (on a manual) or even worse, your transmission, might be going out. The dead battery might be just a coincidence.