- May 28, 2014
- 839
Hi this is my first post and unfortunately it has to be one with a problem
so here's the problem i recently bought a 05 gmc envoy with 138k the service 4x4 light was on before we bought it and the guy said it was because of the remote start that was recently installed and i never checked to see if it worked so now that i have had time to fully look at it i noticed a few things
1.service 4x4 light is on almost all the time but sometimes it goes off but comes back pretty quick
2.there are usually no lights on the selector switch but sometimes they go on when the 4x4 light goes off and sometimes its on when the 4x4 light is on
3.i scanned the codes and got u1026 it was a code for no communication with tccm
4. when selector switch light is on and i turn knob nothing happens
so i have no idea where to go with this info
but one thing i can say is that most of the times the light goes off (or on) is when hitting a bump but some times it does the same on smooth roads
this leads me to the other day when i hit a pretty big bump while stopping i noticed the 4x4 light went off and the selector lights went on
when i got home i turned the switch from 2hi to a4wd and it flashed over it but no sounds then i turned it to 4hi and the same so i went back to 2hi and it stood there
i have tried pulling the fuse which usually gets the selector switch on but still nothing
any help is appreciated
also i have rear air suspension that sags mainly to the passenger side and sometimes would deflate completely but while driving stays leveled but still sagged a bit to the passenger side also i have been next to it when it deflates and you can hear it deflating (it sounds like a leak in a tire) would this be bad bags or someting else? since sometimes it stays leveled overnight
so here's the problem i recently bought a 05 gmc envoy with 138k the service 4x4 light was on before we bought it and the guy said it was because of the remote start that was recently installed and i never checked to see if it worked so now that i have had time to fully look at it i noticed a few things
1.service 4x4 light is on almost all the time but sometimes it goes off but comes back pretty quick
2.there are usually no lights on the selector switch but sometimes they go on when the 4x4 light goes off and sometimes its on when the 4x4 light is on
3.i scanned the codes and got u1026 it was a code for no communication with tccm
4. when selector switch light is on and i turn knob nothing happens
so i have no idea where to go with this info
but one thing i can say is that most of the times the light goes off (or on) is when hitting a bump but some times it does the same on smooth roads
this leads me to the other day when i hit a pretty big bump while stopping i noticed the 4x4 light went off and the selector lights went on
when i got home i turned the switch from 2hi to a4wd and it flashed over it but no sounds then i turned it to 4hi and the same so i went back to 2hi and it stood there
i have tried pulling the fuse which usually gets the selector switch on but still nothing
any help is appreciated
also i have rear air suspension that sags mainly to the passenger side and sometimes would deflate completely but while driving stays leveled but still sagged a bit to the passenger side also i have been next to it when it deflates and you can hear it deflating (it sounds like a leak in a tire) would this be bad bags or someting else? since sometimes it stays leveled overnight