LTnone

Well I just bought this car today, it's a '91. On the way home I noticed a peculiar problem with the lights- If I drive with just the headlamps on, it's fine. However, if I turn on the fog lamps, after 3-5 minutes-ish the headlamps and sometimes fogs start cutting out intermittently. If I turn the headlamps off and back on the problem goes away for a little while, then returns (once again it's fine w/o the fogs). Also, if I only have the running lamps on, the fogs won't turn on. Has anyone ever run into this/have any idea what it could be? Thanks in advance

PRO50SC

Pull out the h/l switch and have a look at it. Something is getting hot and shorting out most likely.

LTnone

Should I be looking for something melted or burned? Any idea?

PRO50SC

Yup, unplug the connections and it will be easy to spot. Alotta current runs through the switch and a bad connection will cause high resistance and heat, then finally failure.

89GTRed

also the fogs wont turn on unless you have the headlights on. you have to rewire it to make the fogs come on without the headlights on. not sure why ford made it that way........[:'(]

LTnone

For anyone else who might have this problem, sdmaker sent me a great link on how to fix it

http://www.corral.net/tech/maintenance/foglights.html