GM bit-size owner
Hello all, I just got this truck and have a few questions. 1999 gmc sierra, 5.3, ext. cab, full leather, full power, slt, with z71 sticker, don't think it's a real z71 though (no bilstien or locker) First off I got the truck dirt cheap, even trade for a $1000 street bike I had. It needed a rear end due to the pinion pin shearing the bolt off then the pin backing out and wacking the pinion gear. so I changed the rear end and now thats fine. next on my list is the service 4wd light is on and when I start the truck it automaticlly goes into 4hi. It won't just go into 2wd by hitting the button. the lights flash and you can hear the actuator trying but it fails and the 4 hi light goes back on. If I hit auto 4wd it on then I hit 2wd the light flashes then all go out and it's in 2wd. what could be doing this? switch or actuator or something else? also have a p0449 code for evap. anyone have a clue what could cause that? maybe the purge soleniod? Thank you ahead of time for your help.