my 4wd want lock in
i put it in 4wdlo an it blinks, and then put it in drive the axles turn but the 2 front wheels arent pulling any idea whats wrong with it
System is self diagnosing - take it to a shop and pull codes and go from there. These haev a lot of problems with the transfer case actuators
it could be the front differential solenoid actuator.
Search GMC Sierra C/K 1500 Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
GMC Sierra C/K 1500 Experts