GM Technical Discussion and Questions / Buick Today 12:20 PM
Maybe . . .
Hopefully Billbuzzy will come back with more.
GM Technical Discussion and Questions / Pontiac Today 12:15 PM
I agree, generally it's a good idea to not touch any of them unless doing diagnostics one has gone bad. The MAF can get dirty sometimes, but using good filters eliminates most of that. The rest are...
GM Technical Discussion and Questions / GMC/Chevrolet Truck/SUV Today 10:29 AM
With the limited info provided, their was a tsb for transfer case issues ( noise and shudder) related to fluid issue. I don't remember the number. If you haven't changed the oil in the transfer case...