# Dodge Ram 4WD engagement problem

**URL:** <https://community.cartalk.com/t/dodge-ram-4wd-engagement-problem/8393>\
**Category:** Maintenance/Repairs\
**Created:** [December 16, 2007, 8:38pm UTC](https://community.cartalk.com/t/dodge-ram-4wd-engagement-problem/8393 "2007-12-16T20:38:34Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![IanHutcheon](https://avatars.discourse-cdn.com/v4/letter/i/a4c791/32.png) [@IanHutcheon](https://community.cartalk.com/u/IanHutcheon)\
**Post date:** [December 16, 2007, 8:38pm UTC](https://community.cartalk.com/t/dodge-ram-4wd-engagement-problem/8393/1 "2007-12-16T20:38:34Z")

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I have a persistent problem with the 4WD on a 1997 Dodge 2500 Diesel P/U. The vacuum actuator has been repalced and the 4WD works for awhile, but after a few miles, there is a banging sound and 4WD stops working. If the actuator is removed it is damaged and will not engage anymore. I have tried locking the spline lock into place, but this lasts for only a short time. Could there be something wrong in the Diff case?