I have a 2006 f 150 the doors lock automatic after you go 5 mph as normal but every time i stop at a light or stop sign they do it again ever time the whole drive. also my speedometer and other gauges jump when you shut off the truck are they related to the same problem or is it two problems.

 

Do you have a door ajar indicator or interior lamps on ?

When was the last time the truck got a new battery ?

 

no door ajar indicator or lights on and it is the factory battery
i all so have the odometer problem of blinking and staying off that is described in other posts but that sounds like a whole other issue.

 

Have the battery load tested by a reputable shop. Sounds like it is on the way out, causing strange problems.

The odometer issue ( the display itself going blank ) seems to be a cold solder joint.

I have not checked the cluster I got, it is sitting on the shelf. I need to verify if it is cold solder joints, to know which way to go with the How To on it.

 

sscully thanks do auto zone or advanced auto load test or do they just volt check

 

I don't trust them to have the correct equipment, let alone someone that knows how to actually use it.

Some Sears auto centers have staff that know how to use the equipment, the other is Napa. OBviously a good repair shop & the dealer, but they usually want to charge shop rate for checking.

 

old post, but my 2005 f150 is similar.
recently replaced dead battery, then noticed the issues of doors locking each take off & no odometer readout.
now the turn flasher has failed, unrelated?