Truck is an 04 LB7. 230k miles. Original set of symptoms....
1) Service 4WD
2) No Cruise Control
3) P0500
4) P0700
5) ABS Light
5) No Speedometer reading on CTS2, but dash working fine
6) 4Lo showing on 4WD switch, or sometimes neutral
So far, I have replaced the T-case because it blew. Literally. Broke out of the casing. Also replaced the NSBU, Vehicle Speed Sensor (on t-case), and the 4WD switch. Symptoms stayed away for 4-5 weeks. Now I get them intermittently. Sometimes my cruise works, sometimes not.
caveat to ABS light - Came on after changing UCA's last spring. I'm going to clean them and see if that fixes it, if not I'll replace them. But that requires time, which I don't have a lot of.
I'm curious to hear any suggestions on how these issues could or could not be related. I would rather throw parts at it myself than take to a shop to pay labor. Since the truck is 13 years old with a ton of miles, the parts probably need to be replaced anyway. So I don't get too worked up if I throw a part at it and it doesn't fix it (as long as it's not too expensive)
ps Roxyfever and I have both done some research on this without any obvious answers. Well, him more than me. One unknown is if the ABS sensors in the front wheels can cause the vehicle speed sensor code to light up.
I'm all ears. Thanks!
1) Service 4WD
2) No Cruise Control
3) P0500
4) P0700
5) ABS Light
5) No Speedometer reading on CTS2, but dash working fine
6) 4Lo showing on 4WD switch, or sometimes neutral
So far, I have replaced the T-case because it blew. Literally. Broke out of the casing. Also replaced the NSBU, Vehicle Speed Sensor (on t-case), and the 4WD switch. Symptoms stayed away for 4-5 weeks. Now I get them intermittently. Sometimes my cruise works, sometimes not.
caveat to ABS light - Came on after changing UCA's last spring. I'm going to clean them and see if that fixes it, if not I'll replace them. But that requires time, which I don't have a lot of.
I'm curious to hear any suggestions on how these issues could or could not be related. I would rather throw parts at it myself than take to a shop to pay labor. Since the truck is 13 years old with a ton of miles, the parts probably need to be replaced anyway. So I don't get too worked up if I throw a part at it and it doesn't fix it (as long as it's not too expensive)
ps Roxyfever and I have both done some research on this without any obvious answers. Well, him more than me. One unknown is if the ABS sensors in the front wheels can cause the vehicle speed sensor code to light up.
I'm all ears. Thanks!