I have had problems with the 4x4 actuator on my 1998 SIlverado. During very cold wheather conditions, the 4x4 will not kick in. The 4wd electronic indicator light flashes x3 times then stays in 2wd. After a couple of miles, and repeated tries to lock in 4wd, the 4wd finally goes in. My mechanic has told me that the actuator needed replacing. I had the electronic one replaced for a mechanical one, but it still does it in cold weather. Anybody else have anything similar or any ideas what to do next.
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