Power door locks

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Apr 29, 2003 | 03:24 PM

ldcattle

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Joined: Mar 2003

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Power door locks

I need some experts opinion....
My 99 F150 4x4 power door lock on the drivers side has just started malfunctioning. When I hit the button, it acts as though it wants to go up or down, but it's as though it's in a bind.

I pulled the door panel off thinking it may be sticking or binding, but that didn't help. There does not seem to be anything touching the rod that might keep it from working.

Any new suggestions?

Apr 29, 2003 | 03:43 PM

f150-az

Senior User

Joined: Apr 2003

Posts: 262

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From: Tucson

Power door locks

Might be the actual switch itself. My mom's minivan did the same thing, and she just replaced the switch and it worked fine.

Apr 29, 2003 | 03:45 PM

AegisSailor

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Joined: Sep 2002

Posts: 772

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From: White Sands, NM

Power door locks

Well, to test the switch just short the leads together with jumper or a metal screwdriver. Can you operate the lock manualy easily? Does it feel like it's in a bind?

Apr 29, 2003 | 04:38 PM

ldcattle

Thread Starter

Freshman User

Joined: Mar 2003

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Power door locks

I don't think it is the switch because not only does the other side work perfectly, but the drivers side moves as if it wants to go up or down, it just doesn't!

And yes, you can manually operate it.

Apr 29, 2003 | 07:11 PM

Racerguy

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Joined: Aug 2002

Posts: 12,679

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From: BC, Canada

Power door locks

The most common problem is the door lock actuator.
They are a bit of a pain to replace...you have to pull the whole latch assembly out.

Apr 29, 2003 | 08:29 PM

dilas

Tuned

Joined: Mar 2003

Posts: 498

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From: Santa Fe

Power door locks

I have similiar power lock problem on my F150 Lariat. It's been intermittent for a while. The driver side works just fine, but the passenger side shows some "sticky" response. Whenever I press the power lock button, the drivers side would response on any first press, but for passenger side, it would response after second or even third press. Is there a way to test before going overboard with removal of door panel along with switch or the door lock actuator. Would a spray of WD-40 help? I'm not having serious problem yet to perform any basic troubleshooting.

Apr 29, 2003 | 10:40 PM

Racerguy

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Joined: Aug 2002

Posts: 12,679

Likes: 15

From: BC, Canada

Power door locks

Not sure that WD40 will cure it but I dont think it can hurt.
Spray a whole bunch into the latch and see what happens.
The actuator is built into the latch on the newer trucks.