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#4044944 - 01/26/20 05:40 AM Door locks not working.
yourself Offline
Over the Hill

Registered: 06/06/10
Posts: 1227
Loc: British Columbia
Seems that when i hit the power door lock button on the drivers door switch panel, only my rear doors lock and unlock. The front doors do nothing. I also cannot lock or unlock the car with my key. The key goes in but will not turn. Any ideas?
_________________________
1989 Crown Victoria LTD: Men in Black Replica, 5.0 HO swap, Powerdyne BD-10 Supercharger with 8 lb pulley, 3.73 Gears,Trac Lok ,P71 Aluminum Driveshaft

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#4044946 - 01/26/20 06:26 AM Re: Door locks not working. [Re: yourself]
Old_Guy_Stu Offline

Over the Hill

Registered: 04/28/19
Posts: 1491
Loc: Cleveland, OH
Lube the latches real good. Pull the door panels off to really get the lube in there. Start with Blaster or Liquid Wrench, follow with lithium grease. If you work the key back & forth while you're doing this, it should free up.
_________________________

1988 CVLX Formal Roof (Love Boat) POTM July 2019 & Aug 2020, 54K
E-code lights w/ relays, LEDs w/ switchbacks, 15x8 Ansen slots w/ 255/60 BFG's, Kenwood stereo, various hacks.
1988 CVLX (Destroyer) 1998-2001 driven to death 202K
1988 Squire (Chris Craft) 1996-1998 junkyard rescue driven to death 199K

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#4044950 - 01/26/20 10:06 AM Re: Door locks not working. [Re: yourself]
BigMerc96 Offline
I know nothing
Posting Addict

Registered: 06/05/10
Posts: 19860
Loc: I can see Detroit from here!
Chances are, the door lock actuators are frozen/seized up. Really common on a box. The way the linkages are set up, a seized power lock actuator will prevent any of the lock linkages from moving, including the lock cylinder. My buddy's '91 wagon had this problem on both front doors and the tailgate. Due to no budget at the time, the lock actuators were just disconnected from the latch, that way the doors could be locked/unlocked manually and the rear window on the tailgate could be rolled up/down with the key .
_________________________
-Steve

2006 Audi A6 ~132k miles, stock.
1998 Mercury Grand Marquis LS HPP ~100k miles, slowly acquiring modifications.
1997 Town Car Cartier ~145k miles, Ported Plenum, Gutted Airbox, Contour E-fan Retrofit, Dual exhaust with Magnaflows, cats deleted, MSD Ignition, KYB Gas-A-Justs, P71 front bar, air ride reinstated, Projector retrofit, Caddy 4-note horn retrofit, Wood rim steering wheel retrofit, holistic weight reduction as the parts fall off..
1996 Mercury Grand Marquis GS 117,485mi. R.I.P. 7/14/12 frown

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#4044964 - 01/26/20 02:37 PM Re: Door locks not working. [Re: yourself]
yourself Offline
Over the Hill

Registered: 06/06/10
Posts: 1227
Loc: British Columbia
Thanks!
_________________________
1989 Crown Victoria LTD: Men in Black Replica, 5.0 HO swap, Powerdyne BD-10 Supercharger with 8 lb pulley, 3.73 Gears,Trac Lok ,P71 Aluminum Driveshaft

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#4047340 - 02/14/20 08:12 AM Re: Door locks not working. [Re: yourself]
minux Offline
Member

Registered: 07/10/19
Posts: 125
Loc: Baltimore, MD
I wound up replacing everything, but +1 to lithium grease. WD40 makes their speciality line and just make sure you buy something that lubricates.

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