Hey guys I am new to posting, but I just had to register to say how good this site is. I have a 1999 F150 4x4, and I have saved a guessed $1000 by researching this site. I just finished fixing the odometer, and I replaced the heater core yesterday, using instructions from Allan.
I could not see a crack in the solder joint, but I re-soldered it anyway, and POOF! A 1 year problem was fixed in less than an hour!! The light switch trick out of the manual mentioned worked like a charm the first time!
Brad