odometer

the odometer on my 99 expedition goes on and off. doesn't appear to be any pattern, sometimes it just gets dimmer

I know I'm late getting to this post, but I've actually seen this one before, it's usually the dimmer switch next to the headlight switch...but it's pretty pricey so unless I could get a good reading with an ohm-meter, I'd probably live with it (or put in my known good one in my toolbox and see if it stops...yes the professionals cheat every now and again!) Good luck with it.

thanks, I will take a look at the switch.

:uhoh: I had the same problem with my 1999 Expedition especially in humid/damp weather. The bad news is that you have to remove the gage cluster, the good news is that it may be due to a cold solder joint, that takes $.05 of solder. I fixed mine over 130,000 miles ago, and have had no repeat of the failure.

You may want to look for a cracked/corroded ground pin on the backside of the printed circuit board (directly behind the odometer read out). There is a great link that explains the procedure:

Hopefully this link will atttach.

http://www.f150online.com/forums/electrical-systems/126765-intermittent-odometer-repair-2.html

Good Luck

I fixed my odometer over the weekend it took about 1 1/2 hours cold solder joint was the problem.
I stole $600 from the dealer.
Thanks