Door window slow

[bobfather]

Bought this car in 2002 and still haven't got around to fixing the slow drivers door window. I've had the door card off and lubricated the runners but it's still slow. The power is very low under load so I'm planning to add a new dedicated +ve feed and ground wire. Is there any advice for this job? How do people feed a new wire in? Where's the nearest ground point?

[bobfather]

Penelope Stopit said:

Before getting involved with upgrading wiring or fitting relays for better power supply, check to see how well the window works when you connect the window motor directly to the cars battery, reverse the connections for up and down

Mind your fingers, always connect the motor up first and then the battery when your hands are clear

Disconnect all car wiring from the motor before getting to work

That sounds like a good plan

[bobfather]

N7GTX said:

Spray the runners with WD40 or similar and if it improves then probably the runners as said above.

I've had the door card off and lubricated the runners, there was negligible improvement but the slowness persists