Hi starter sticks sometimes, have to take battery lead off to stop. new starer motor 12 months ago. could it be a relay in fuse box?

The problem could also be caused by the pinion jamming on the shaft, I would remove the starter & make sure the pinion has free movement on the shaft - lubricate the starter shaft lightly & try the starter off the vehicle with a battery but hold on tight as the torque reaction is pretty strong & don't let it spin for too long.
It could also be the solenoid itself sticking??
Cheers

You need to establish if the fault is in the switching circuit or power supply. Does it happen every start? Get someone to operate the key while you check for power on the solenoid switch terminal. If it holds power on this terminal, the fault will be external. Keep in mind, if starter continues to crank, you will get a back feed out the switch terminal. I tend to disconnect the wire, and use a small jump wire between the terminal and wire. When the fault occurs, remove jump wire, if it still cranks, it's not key switch, relay, etc. One of the biggest causes of starters staying engaged is low battery voltage- the contacts stick together due to the low voltage. As Free Spirit says, the pinion may be sticking out on the shaft, but that is a mechanical fault, not electrical, so while the pinion may jam in mesh, disconnecting the battery shouldn't be necessary, as the solenoid would still be releasing the contacts. The internal plunger spring will allow the contacts to disengage, even if the pinion is stuck out. A starter of that age shouldn't be sticking, unless you have a really bad clutch, or water/ dust etc. is getting up in the bell housing. Do you take you van off road, eg building sites.

Hi, that must be the problem, low battery, I put a new one on yesterday because the old one would turn the engine over slow. the starter started sticking 3 months ago. it would only stick some times. thanks for replies, and your time. This forum is so good!!!