SOURCE: when i turn my truck to the left or right the
It sounds like your front 4x4 actuator on the front differential has locked up. It's common to happen and the fork that engages the 4X4 in the differential is still locked up or partially locked up.
On the full size, the front actuator is electric, not vacuum.
When in 4wd mode, a switch on top of the transfer case conducts 12 volts out to the actuator. Wire #50 (brown) is the 12v feed, and it conducts to the light blue wire (#900) to the actuator.
When shifted out of 4wd, the switch opens up and no voltage goes to the actuator.
Check voltage at the connector for the front actuator (at the front differential - it looks like a large bullet that threads into the front diff.) If it has 12 volts, the actuator is the problem. If it does not have 12 volts, check the transfer case switch and the power feed to the transfer case.
I'll assume it is the actuator, if the plug to the actuator is getting 12 volts when in 4wd.
The way this actuator works, is it is a sealed chamber that gets heated by voltage. When it heats, the pin in the end swells and pushes a shift fork in the front differential. The shift fork engages a spline on the passenger side of the differential, and boom! you have 4WD.
GM offered an upgrade to this actuator that is a motor instead of a heated device. However, it requires a small harness addition, a spacer, and a new actuator. It is about a $150 to $200 option.
If I were you, I would buy a new heated actuator. They are available at most auto parts stores, and are about $90. They are also on eBay for about $55 plus shipping. These are very easy to change - just thread out the old one, and thread in a new one.
Good luck. The actuator is usually the problem 90% of time but recheck all of the wire harness just to maker sure there is no short before replacing any parts.
http://www.getdieselpower.com/misc_auto/actuator_upgrade/GM_TRUCK_4X4_ACTUATOR_UPGRADE.html
SOURCE: when need to use the 4wd, my truck to the left or
You could have a CV joint that has gone bad, or the engagment forks to the front differental is partialy engaged which is causing the popping noise when you go around a corner. Good luck and keep me posted.
SOURCE: front passenger wheel makes rubbing
Is your brake light on and do the brakes work OK is there any pulling when you apply the brakes so dose it tend to pull the steering wheel one way. If none of this is happening the system is still working correctly. However its time to look at the system it could be a stickey calipar or something from the road shot up and got stuck in the brakes or it could be the front axle assambly at the joint or worped brake rotor. Its hard to say but if you do something about it now you will save money and parts down the road. Its trying to tell you that something is wrong good luck
SOURCE: what causes a popping noise from front end, and a rubbing noise , not grinding
4wd?? Check CV shafts. Also look for whats rubbing. whre is the dirt rubbed off.
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