Notices
1997 - 2003 F150 1997-2003 F150, 1997-1999 F250LD, 7700 & 2004 F150 Heritage
Sponsored by:
Sponsored by: Auxito

Power Doorlock Problem

Thread Tools
 
Search this Thread
 
Old Oct 7, 2009 | 09:18 AM
  #1  
SteevenH's Avatar
SteevenH
Thread Starter
|
Senior User
Joined: Aug 2009
Posts: 304
Likes: 2
Power Doorlock Problem

99 F250 LD 5.4 4x4
I have a problem with both door locks. Depress the buttons , lock or unlock and theres a click but nothing happens. Put the truck in gear and both locks lock. I still have to unlock them with the door handles or key. I thought that it might be bad solenoids but why do both doors lock when in gear? Any suggestions?
 
Reply
Old Oct 7, 2009 | 02:30 PM
  #2  
gtiguy's Avatar
gtiguy
Freshman User
Joined: Oct 2007
Posts: 29
Likes: 0
sounds werid im not expert but does your truck have some kind of aftermarket theft system?
cuz i know alot of cars that when you put them into drive they lock
just throwing that out there
 
Reply
Old Oct 7, 2009 | 03:50 PM
  #3  
SteevenH's Avatar
SteevenH
Thread Starter
|
Senior User
Joined: Aug 2009
Posts: 304
Likes: 2
Addendum to doorlock problem

Here is some additional info on doorlocks. Not only do they click but
they move slightly . If the solenoids are bad it seems strange that
they would move the locks when the vehicle is put into gear.
 
Reply
Old Oct 7, 2009 | 03:51 PM
  #4  
eallanboggs's Avatar
eallanboggs
Elder User
Joined: Jan 2008
Posts: 605
Likes: 1
Do some voltage measurements to verify what you're saying. Voltage at solenoid in gear and out of gear.
 
Reply
Old Oct 9, 2009 | 05:28 AM
  #5  
Eatonpcat's Avatar
Eatonpcat
Posting Guru
Joined: Feb 2007
Posts: 1,612
Likes: 2
My 2001 f150 has the same issue at times, but before it annoys me to the point of looking for the problem, it starts working again. How lazy we all have become w/power locks and key fobs... Never use the key to unlock the door until the locks started screwing up.
 
Reply
Old Oct 9, 2009 | 06:37 AM
  #6  
redwood's Avatar
redwood
Elder User
Joined: Jun 2004
Posts: 747
Likes: 2
From: Pelahatchie, MS
Could be a voltage drop from the lock switch that's not happening with the signal from the gear indicator....
 
Reply
Old Oct 9, 2009 | 07:13 AM
  #7  
eallanboggs's Avatar
eallanboggs
Elder User
Joined: Jan 2008
Posts: 605
Likes: 1
Both door locks work, but only in gear. That says the problem is COMMON to both sides. What is in common? The locks themselves seem to be functional since they work properly when in gear. I'm looking for a control module. Time for Alldata or Mitchell
 
Reply
Old Nov 17, 2009 | 02:27 PM
  #8  
RA112222's Avatar
RA112222
Cross-Country
Joined: May 2008
Posts: 51
Likes: 0
Same issue. Key will mechanically unlock the doors (Truck has no keyless entry). However from inside the truck, the electrical door switch will only lock the doors, not unlock them. Not sure what keeps the "unlock" part of the switch from working. If I punch the switch real quick the unlock part will work sometimes. I'm looking for a control module also, or I'll check out the actuator next.
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

 Verdad Gallardo
story-1

10 Best Ford Truck Engines We Miss the Most!

 Joe Kucinski
story-2

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

 Brett Foote
story-3

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

 Michael S. Palmer
story-4

10 Most Surprising 2026 Ford Truck Features!

 Joe Kucinski
story-5

Top 10 Ford Trucks Coming to Mecum Indy 2026

 Brett Foote
story-6

5 Best / 5 Worst Ford Truck Wheels of All Time

 Joe Kucinski
story-7

Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!

 Joe Kucinski
story-8

Every 2026 Ford Truck Engine RANKED from WORST to FIRST!

 Michael S. Palmer
story-9

The Best F-150 Deal of Every Trim Level (XL through Raptor)

 Joe Kucinski
Old Nov 17, 2009 | 02:31 PM
  #9  
TRAINHORNMAN's Avatar
TRAINHORNMAN
Elder User
Joined: Aug 2009
Posts: 583
Likes: 0
From: SOUTH TAMPA
you must have something aftermarket in there..do u use a key fob made my ford?

What i think it is..is your switch is messed up for the doors..but ur after market puts it into lock which means the actuators must be good..

try this:
throw the truck in gear...should lock it...

put it back in park..should unlock it..
if not try turning the car off but dont open the door and see if it unlocks itself?
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
John90
1997 - 2003 F150
4
Oct 16, 2012 10:42 PM
jjs2032
Explorer, Sport Trac, Mountaineer & Aviator
1
Apr 22, 2008 08:27 AM
AlaTex
Electrical Systems/Wiring
16
May 18, 2007 05:23 PM
justwufn
Explorer, Sport Trac, Mountaineer & Aviator
4
Jul 29, 2002 06:05 PM




All times are GMT -5. The time now is 09:31 PM.

story-0
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-1
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-2
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-3
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-4
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE
story-5
Top 10 Ford Trucks Coming to Mecum Indy 2026

Slideshow: Here are the top 10 Fords coming to Mecum Indy 2026.

By Brett Foote | 2026-05-04 13:49:49


VIEW MORE
story-6
5 Best / 5 Worst Ford Truck Wheels of All Time

Slideshow: The 5 best and 5 worst Ford truck wheels of all time

By Joe Kucinski | 2026-04-29 16:49:01


VIEW MORE
story-7
Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!

Slideshow: Ranking the 5 things owners love about their Super Duty and 5 things they don't

By Joe Kucinski | 2026-04-29 16:36:49


VIEW MORE
story-8
Every 2026 Ford Truck Engine RANKED from WORST to FIRST!

Slideshow: Ranking all 12 Ford truck engines available in 2026.

By Michael S. Palmer | 2026-04-22 13:32:20


VIEW MORE
story-9
The Best F-150 Deal of Every Trim Level (XL through Raptor)

Slideshow: The best Ford F-150 deal for every trim level (XL through Raptor)

By Joe Kucinski | 2026-04-21 15:59:01


VIEW MORE