Low Range problem...advice needed

Thread view:

Enable EMail Alerts

Start New Thread

Thread rating:

Augustus - 15 Nov 2006 03:29 GMT

Here's something new with my '04 Z71 Avalanche: The Autotrac won't go into
Low Range....Auto 4 works, 4 Hi works. Push the 4 Lo button, it flashes for
20-30 sec and goes back to 4 Hi. Tried it moving slowly and stationary in
park.....am I missing something? Temp here has been about 15F (-10C) but the
transfer case is fully warmed up when trying this. This is my first
experience with electronic 4WD engagement.

Reply to this Message

SnoMan - 15 Nov 2006 13:45 GMT

>Here's something new with my '04 Z71 Avalanche: The Autotrac won't go into
>Low Range....Auto 4 works, 4 Hi works. Push the 4 Lo button, it flashes for
>20-30 sec and goes back to 4 Hi. Tried it moving slowly and stationary in
>park.....am I missing something? Temp here has been about 15F (-10C) but the
>transfer case is fully warmed up when trying this. This is my first
>experience with electronic 4WD engagement.

Love that push button 4x4 drive, it should have never been made. Try
shifting it when coasting at about 3 to 5 MPH with engine idling in
neutral. Park will rarely work. There is a encoder motor that switch
ist and if it will not engage (it takes to much force) it will return
to 4wd hi.
-----------------
TheSnoMan.com

Reply to this Message

Augustus - 15 Nov 2006 15:01 GMT

> Love that push button 4x4 drive, it should have never been made. Try
> shifting it when coasting at about 3 to 5 MPH with engine idling in
> neutral. Park will rarely work. There is a encoder motor that switch
> ist and if it will not engage (it takes to much force) it will return
> to 4wd hi.

Thanks man, appreciate that. Will try out today at some point.

Reply to this Message

Ron Recer - 15 Nov 2006 17:42 GMT

> Here's something new with my '04 Z71 Avalanche: The Autotrac won't go into
> Low Range....Auto 4 works, 4 Hi works. Push the 4 Lo button, it flashes
> for 20-30 sec and goes back to 4 Hi. Tried it moving slowly and stationary
> in park.....am I missing something? Temp here has been about 15F (-10C)
> but the transfer case is fully warmed up when trying this. This is my
> first experience with electronic 4WD engagement.

My Silverado has to be in neutral before it will shift into low range. They
also recommend speeds around 3 mph or lower when shifting to low range.

Ron

Reply to this Message

Augustus - 15 Nov 2006 19:31 GMT

> My Silverado has to be in neutral before it will shift into low range.
> They also recommend speeds around 3 mph or lower when shifting to low
> range.
>
> Ron

Thanks....will try that

Reply to this Message