1997 Ford F150 Electrical problems when it rains

1997 FORD F-150
175,000 MILES • V8 • 4WD • AUTOMATIC
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JACK1141
  • MEMBER
  • 4 POSTS
Every time it rains I have a variety of electrical problems

Engine wont turn off when I turn off ignition switch
4 wheel drive light flickers
starter tries to engage while engine is still running
speedometer is either erratic or doesnt work at all
etc.

I have replaced ignition lock set and ignition switch doesn't help

when it is dry outside truck runs great

whats the problem?
Mar 30, 2009 at 1:32 AM
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JAMES W.
  • ✓Experienced Mechanic
  • 2,394 POSTS
The next time this condition exists, disconnect the wire connector going to the alternator and see if the engine dies and everything reyurns to normal except for "no charge". Let me know.
Mar 30, 2009 at 5:23 AM
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