Why is 4×4 light on floor shift flashing on and off?

Tiny
DAVID CHILDS
  • MEMBER
  • 1995 CHEVROLET 1500
  • 4.3L
  • V6
  • 4WD
  • MANUAL
  • 144,000 MILES
I replaced the front axal actuator and the transfer case 4×4 switch. Now the 4×4 light on the floor switch is flashing on and off. When it's on there is power to the actuator when it's off there's no power to actuator. When driving that's when it is flashing.
Thursday, March 6th, 2025 AT 9:11 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
I would check the fuses that run the system, (4wd and Illum) in the fuse panel under the dash. Here is a guide to help and the fuse locations, I have also included the 4wd system wiring diagrams so you can see how the system works.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

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Friday, March 7th, 2025 AT 10:30 AM

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