What would cause my 1999 chevy suburban 1500 series 4wheel drive to not stay engaged while driving? The indicator light is intermittent and the 4 wheel drive seems to engage in and out (mostly notice on right turns) with clunking noise and grinding of gears. From start it sometimes locks in 4Lo and I have to put the transfer case in neutral to get it to shift into 2Hi only to have it randomly shift back while driving, Any ideas as to what is going on???
SOURCE: 1996 suburban makes grinding noise in 2 wheel drive
sounds like the clip on the rear output shaft its probably broke. do this by removing the rear driveshaft, and the tail of the transfer case, there are 4 bolts holding it in place. then grab the output shaft and see if it has any front to back movement. if so pull it all the way to the rear and you should see a groove at the front part of the shaft where the clip goes. Then you should find the pieces fo the clip in the tail housing. One person said he found the replacement clip at a local tranny shop. I am calling the dealership parts counter for a new clip for my 97 Tahoe tomorrow. Hope this helps..
SOURCE: "gear grinding" noise on acceleration, 2 wheel high only
You need to get the truck in the air on a lift, properly! and put it in gear and listin w/ a stethascope, you'll find your noise.
SOURCE: started my truck and put
is the drive shaft rotate when in gear?rear shaft or front rotate??
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