TooTurntDad
TYF Newbie
- Joined
- Nov 1, 2020
- Posts
- 9
- Reaction score
- 5
I traded a VW Passat for a 2003 Yukon I have. Its a bit of a long story but thats for a rainy day.
So, after seller dishonesty and my error of not being more... “****” about inspecting the truck until I took it... Im left with... A lemon.
So, heres whats going on:
When I got on the highway I figured the truck could do highway speeds. Nope, not at all. Anything over 65; brake light goes on, abs light trips, speedometer goes crazy, kicks out of OD and goes into a lower gear, then neutrals itself out before going back into OD again once under 65mph.
I get home finally (5.5hrs later) and look around it in my garage with much better lighting. My guesses to my problem were a bad transfer case speed sensor and bad wheel speed sensors. So I replace them; do a test drive and the problem didnt get fixed. So I figured, “hmm lets try something else” so I go and see if its 4wd related. I basically find out my push button doesnt work. Itll light up before the Yukon is officially started but thats it.
I got to tinkering with it some today and found that the previous owner took out the front driveshaft. I had the rear end lifted, turned the truck on, and seen that the the transfer case was spinning which lead me to believe that Im stuck in 4Hi. I tried to manually do it by removing the motor and taking a pair of channel locks and turn it counter clockwise two clicks (my guess) and hope it kicked it out of 4wd. Took it for a test drive and found myself with little to no power. Went back in and put it back to its original position and decided to ask questions before I end up breaking something.
So, do these 4wd systems require a front driveshaft because I have access to one from a parts truck local, but I feel it still wouldnt resolve my service 4wd light and Id get power to the front wheels and potentially blow the front driveshaft out.
I do notice vibration from the transfer case when going highway speeds.
So this is the list of things I have done in relation to the matter:
-Replace front wheel speed sensors
-Replace transfer case speed sensor
-Replace push button 4wd switch
-Ohm out and checked voltage to actuator and transfer case motor
-Tried manually switching to 2wd
-Tried to use a vampire clip to a positive wire in the 4wd switch to give power to the switch
-Replaced the fuse for the 4wd system.
The only thing left that I could think of that I’ll get around to on my day off is checking the TCCM and pray and hope thats the culprit which I have access to a spare one from a parts truck.
But anywho, sorry for the long and drawnout post. Im just giving every detail of what is going on. Hopefully its in the right section. Hopefully with some guidance from you guys I can get this fixed and hopefully this post can help others in the future.
So, after seller dishonesty and my error of not being more... “****” about inspecting the truck until I took it... Im left with... A lemon.
So, heres whats going on:
When I got on the highway I figured the truck could do highway speeds. Nope, not at all. Anything over 65; brake light goes on, abs light trips, speedometer goes crazy, kicks out of OD and goes into a lower gear, then neutrals itself out before going back into OD again once under 65mph.
I get home finally (5.5hrs later) and look around it in my garage with much better lighting. My guesses to my problem were a bad transfer case speed sensor and bad wheel speed sensors. So I replace them; do a test drive and the problem didnt get fixed. So I figured, “hmm lets try something else” so I go and see if its 4wd related. I basically find out my push button doesnt work. Itll light up before the Yukon is officially started but thats it.
I got to tinkering with it some today and found that the previous owner took out the front driveshaft. I had the rear end lifted, turned the truck on, and seen that the the transfer case was spinning which lead me to believe that Im stuck in 4Hi. I tried to manually do it by removing the motor and taking a pair of channel locks and turn it counter clockwise two clicks (my guess) and hope it kicked it out of 4wd. Took it for a test drive and found myself with little to no power. Went back in and put it back to its original position and decided to ask questions before I end up breaking something.
So, do these 4wd systems require a front driveshaft because I have access to one from a parts truck local, but I feel it still wouldnt resolve my service 4wd light and Id get power to the front wheels and potentially blow the front driveshaft out.
I do notice vibration from the transfer case when going highway speeds.
So this is the list of things I have done in relation to the matter:
-Replace front wheel speed sensors
-Replace transfer case speed sensor
-Replace push button 4wd switch
-Ohm out and checked voltage to actuator and transfer case motor
-Tried manually switching to 2wd
-Tried to use a vampire clip to a positive wire in the 4wd switch to give power to the switch
-Replaced the fuse for the 4wd system.
The only thing left that I could think of that I’ll get around to on my day off is checking the TCCM and pray and hope thats the culprit which I have access to a spare one from a parts truck.
But anywho, sorry for the long and drawnout post. Im just giving every detail of what is going on. Hopefully its in the right section. Hopefully with some guidance from you guys I can get this fixed and hopefully this post can help others in the future.
