1997 Ford F-150 Electrical problems when it rains

Tiny
JACK1141
  • MEMBER
  • 1997 FORD F-150
  • V8
  • 4WD
  • AUTOMATIC
  • 175,000 MILES
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?
Monday, March 30th, 2009 AT 8:32 AM

1 Reply

Tiny
JAMES W.
  • MECHANIC
  • 2,395 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.
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Monday, March 30th, 2009 AT 12:23 PM

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