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2003 sierra service 4wd
- Thread starter MEALS
- Start date
1999 to 2007 models had lots of problems with the electronic parts of the 4wd system. The push-button dash switch often failed but there are other more expensive electronic parts of the system that were also known to cause problems. The suppliers GM counted on let them down. You could take a chance and replace the dash switch as its normally cost <$50. The other parts though cost a lot more so changing them without testing the system first would not be wise.
No, there is not a lube sensor.
No, there is not a lube sensor.
Same issue with mine - was the $%#%$%$ electronic transfer unit $600 ....
I love this truck - bought it new and have 195,000 miles - never have any problems with anything except electronics. Wish GM would leave things alone and leave the electronic stuff out ... would much rather just push the lever when I need 4x4.
I love this truck - bought it new and have 195,000 miles - never have any problems with anything except electronics. Wish GM would leave things alone and leave the electronic stuff out ... would much rather just push the lever when I need 4x4.