New Owner:1970 Mark III windows slow

Power windows, power lock, power seats, radios, heaters, fans, motors, relays, air conditioning, and other accessories or wiring-related items.

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Mike2051
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New Owner:1970 Mark III windows slow

Post by Mike2051 »

I just picked up a 1970 Mark 3 yesterday, and the windows are very slow. When you directly attach power to windows, the motors work great. Could this be a voltage regulator problem? Gas gauge, interior lights, heater also not working. I will search forum, but I also need my 3 meaningful messages! I'm at the point of looking into the "rabbit hole", not sure if I want to go in.
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elcad70
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Re: New Owner:1970 Mark III windows slow

Post by elcad70 »

Try cleaning the switch contacts. Start with the drivers first.
1970 Mark III Lincoln
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Lee
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Re: New Owner:1970 Mark III windows slow

Post by Lee »

elcad70 wrote: Fri Apr 05, 2024 7:06 am Try cleaning the switch contacts. Start with the drivers first.
I’ll second that motion. If that does not improve things, I’d next look at the frame to engine grounding strap for high resistance (which must be done while a high electrical load is in operation).
1930 A Coupe
1941 LC Coupe
1968 XR-7 (my great-grandfather’s)
1962 LC Sedan (owned 35 years & driven 100k+ myself)
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LithiumCobalt
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Re: New Owner:1970 Mark III windows slow

Post by LithiumCobalt »

Switches are likely funked up. Also, the grease for the tracks
Has inevitably become sticky and/or hard over time.
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Current: 1971 Mark III, 2012 MKZ AWD, 2016 F-150 Platinum
WANTED: 1969 Continental sedan, 77 Continental Town Car w/opera window delete, 76 Fleetwood Brougham
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