1997 Dodge Truck 4 wheel drive light

1997 DODGE TRUCK
190,000 MILES • V8 • 4WD • AUTOMATIC
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HAMMERANANAIL
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  • 1 POST
The 4 WD light on my instrument panel is on when 4wd is not engaged- sometimes flickers or strobes depending on speed of vehicle-whats up?
Jan 26, 2009 at 10:47 AM
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JACOBANDNICKOLAS
  • CAR REPAIR CONTRIBUTOR
  • 110,190 POSTS
There is a sensor on the transfer case that sends a signal when you are in 4wd. I believe it is actuated by vacuum. I would start by checking that.

Let me know what you find.

Joe
Mar 14, 2009 at 1:48 PM
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COONHILL2007
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  • 5 POSTS
I had the same problem with my 96 dodge. check the vacuum at the 4wd actuator on the passenger side of the front axle. There is 2 lines that run into a diaphragm, one should have vacuum with the lever in 2wd and the other when its in 4wd. if vacuum is good at both of these lines, take the 4 bolts off that hold the cover on and check the shift fork inside. my shift fork got worn and stuck in the 4wd position evnethough my truck was in 2wd. if this is the case you may need to replace the fork.

hope this helps.
Jun 11, 2009 at 2:05 PM