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Brake lights/taillights turning on randomly while truck is off

Tiny
BEND902003
  • MEMBER
  • 2008 FORD F-150
  • 5.4L
  • V8
  • 4WD
  • 140,000 MILES
Key out and headlights off the brake lights come on and drain the battery. I have replaced the multi-function switch. The left turn signal won’t flash, but the right does. The lights stay on even with the brake pedal switch and the flasher relay pulled. I welcome any ideas or suggestions.
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Thursday, June 13th, 2019 AT 6:37 PM

2 Replies

Tiny
BEND902003
  • MEMBER
  • 2 POSTS
Fixed I think. The ground above the spare tire seems to be the culprit. Cleaned and all is back to normal.
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Sunday, June 16th, 2019 AT 5:29 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,940 POSTS
Sorry for the slow response we were very busy over the weekend. Glad you could get it fixed, that kind of problem can be tough. Please use 2CarPros anytime we are here to help.
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Monday, June 17th, 2019 AT 1:12 PM

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