So I hit all the threads on window regulators and motors but didn’t see what I am currently experiencing. 1998 Discovery. Drivers side window.
So has anyone ever experience a “blown window regulator gear box”? I just want to make sure I’m not missing something before going and ordering a new motor.
Any other tests?
Thanks.
- Get in the vehicle, put the window down just fine.
- Get home, press the up switch - and I hear the motor spinning endlessly but no movement.
- Press the down switch, motor stops accordingly.
- Press the up switch motor spins, no movement.
- Pull window regulator - as expected 2 blown plastic guide wheels.
- Order new window regulator - assuming busted guide wheels are the problem.
- Install old motor on new regulator.
- Bench test and motor operates regulator. Clearly motor has torque based on the way it kicks when engaged.
- Install regulator in door.
- Press the up switch - motor spins, no movement.
- Press the down switch - motor spins, no movement.
- Pull regulator and motor.
- Separate motor/gearbox from regulator.
- Separate motor from gearbox. Motor is a worm gear. Plenty of torque when engaged.
- Place screwdriver where worm gear goes and block drive wheel.
- Grab pinon gear and can turn with fingers - not easy but don’t need pliers either.
So has anyone ever experience a “blown window regulator gear box”? I just want to make sure I’m not missing something before going and ordering a new motor.
Any other tests?
Thanks.