# 2008 Dodge Ram 1500 - How do I check the drive selector? **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** dodge\ **Created:** [October 9, 2018, 12:42pm UTC](https://community.cartalk.com/t/2008-dodge-ram-1500-how-do-i-check-the-drive-selector/126438 "2018-10-09T12:42:27Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![wally26](https://avatars.discourse-cdn.com/v4/letter/w/ed8c4c/32.png) [@wally26](https://community.cartalk.com/u/wally26)\ **Post date:** [October 9, 2018, 12:42pm UTC](https://community.cartalk.com/t/2008-dodge-ram-1500-how-do-i-check-the-drive-selector/126438/1 "2018-10-09T12:42:27Z")
have a 2008 dodge ram, 4wd switch flashes all the time even when I have it set on 2wd. when set on 2wd front end is locked in but not transfer case. when I turn selector to 4wd transfer won’t lock in , seems to me the selector could be faulty. not sure how to test? ---
**Author:** ![TwinTurbo](https://avatars.discourse-cdn.com/v4/letter/t/8baadc/32.png) [@TwinTurbo](https://community.cartalk.com/u/TwinTurbo)\ **Post date:** [October 9, 2018, 4:32pm UTC](https://community.cartalk.com/t/2008-dodge-ram-1500-how-do-i-check-the-drive-selector/126438/2 "2018-10-09T16:32:24Z")
It’s electronic control, then a simple voltage test at the actuators will tell you if the mode is being properly commanded by the selector and it’s a bad actuator or something more involved… ---
**Author:** ![wally26](https://avatars.discourse-cdn.com/v4/letter/w/ed8c4c/32.png) [@wally26](https://community.cartalk.com/u/wally26)\ **Post date:** [October 12, 2018, 1:06pm UTC](https://community.cartalk.com/t/2008-dodge-ram-1500-how-do-i-check-the-drive-selector/126438/3 "2018-10-12T13:06:21Z")
I have run my truck for about two years without cv axles, now I have replaced front cv axles . truck won’t engage in 4 wheel . I have noticed front end is already locked in but the transfer case is not. Service 4wd light is on. I have read somewhere that the actuator and shift motor could be out of sync. How does one get them back in sync? ![](https://global.discourse-cdn.com/cartalk/original/2X/6/677f06bdf711468707faf594c72c7993f90d2513.png)