2007, had a grinding noise in the front end. Replaced brake pads. Not the problem. Dealership decided it was the transfer case. $1800. Nope, not the problem, still have grinding noise. Finally, they replaced front pinion bearings. Eureka! no grinding noise. They put my old transfer case back on. 2009, I got stuck in my front yard and noticed my front wheels did not spin. Dealership looked at the 4-wheel drive and assured me it was working. Later, I placed it in 4-wheel drove a little way up the road (gravel), stopped and then pressed the accelerator fast and the front tires did not spin. Back to the dealership. Well guess what? The first and second clutch in the transfer case is bad. So they say. Can you tell if the clutches are bad without looking inside the transfer case? When I try to engage the 4-wheel drive, I can hear a click as if it did engage. Any ideas what could be wrong? Also, I'm the second owner, bought it 2001 and I have rarely used the 4-wheel drive.
99 chevy silverado 1500 LS 5.3 4x4 ext cab short bed
It does not seem that sufficient diagnosis was done. No, you cant give a specific diagnosis like that without tearing unit down. It's likely that they told you the most common failure and left it at that. Likely there is a problem with your unit...I think this becomes more of a trust issue than a mechanical one. A second opinion from an independent reputable shop may help but either way, you need to have it fixed. In not using it much, it makes me wonder how it got worn.
good luck
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I am in the same boat, but I feel I am way past that point, as I am afraid to drive my truck at all! pulled the jeep out and waiting for warm weather.
I have similalar problem press button to eng. 4wheel drive, also hear click but front tires do not eng., also hear a huming sound when driveing coming from front. I have replaced both hubs and driver side half shaft.
Got a second opinion on transfer case. Trany shop says everything is good, (4 wheel drive does engage the front wheels), but transfer case oil was very black. Changed the oil. He will check it in about a month to see if there is any change in color. He said it maybe going out. Also was having AC issues. Same dealership said it would cost $800. to repair AC unit (compressor, accumulator,orfice tube). Went to an auto AC/Heat shop. Replaced a charge port fitting and cabin air filters. $76./parts and recharge. So far it is still cooling.
same problem here got stuck in about 3feet of snow 4wheel worked fine rocked it back and fourth got out and smelled something terrible 5min later my front wheels didnt spin no lights no warning drove home and parked it same the next day the accuator sounds like its engauging but nothing. service 4wheel came on once for about 10mins the shut of and never came back on would really love to take it to the shop but who to trust for 65 to 90 dollars an hour? suggegstions?
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