1999 DODGE RAM 4WD WON'T ENGAGE

  • Tiny
  • dpaik
  • 1999 Dodge Ram

Transmission problem
1999 Dodge Ram V8 Four Wheel Drive Automatic 155095 miles

I have a 1999 Dodge 1500 4wd, auto trans. The 4wd won't engage. The indicator light on the dash does not come on. I serviced the front drive shaft last summer and test drove it after installation and it worked then.

Sunday, November 30th, 2008 AT 7:08 PM

5 Answers

  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,305 posts

Hi: Does the truck have a manual shifter for the 4wd or is it electric?

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Monday, December 8th, 2008 AT 7:14 PM
  • Tiny
  • dpaik
  • Member

Manual shifter

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Tuesday, December 9th, 2008 AT 8:39 AM
  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,305 posts

Hi: I need you to check the linkage to the transfer case to make sure it's working properly. Also, check all vacumn lines to and from the transfer case, axle.

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Tuesday, December 9th, 2008 AT 9:33 AM
  • Tiny
  • dpaik
  • Member

The linkage seems fine. When I put the lever in the 4hi position and give some gas, I can feel the lever move/vibrate. The vacuum line appear okay. There is one large line coming from the front actuator which appears to have been cut and wire-tied with an open end. BTW my 4wd has worked in the past with everything the way it is now. Thanks.

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Tuesday, December 9th, 2008 AT 12:58 PM
  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,305 posts

Check to see if there is vacuum at the cut hose. If so, replace it.

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Tuesday, December 9th, 2008 AT 1:21 PM

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