This is my first post and first visit to this board.
I've got a buzzing comming from the front axle of a 1995 4x4 Tahoe (2dr). I bought this truck 4 months ago. This past weekend we got 2 ft of snow, and I used 4wd high & low for the first time.
The following day I noticed a buzzing from the front, and it goes away if I engage 4-low, but it's present in 4-high/2-high. It gets loud and goes quiet, and doesn't seem too bad at high speed. In fact, it explains the very faint buzzing noise I (very) occasionally heard prior to this incident, which I had thought might be the rear diff but wasn't. In its now-worsened state I don't feel comfortable driving the truck.
So it seems I've got a problem with getting the front fully disengaged. Does that sound right?
I don't have any manual so I have no idea how this thing is put together. (the darn hood latch just decided to quit also...go figure). Does it use a linkage or electric? Internal or external actuator? Can this be fixed by replacing some sort of bolt-on axle shift motor, or am I going to eat a big repair bill by some who's going to rip the diff apart? (I have air tools, impact wrenches, torches, etc., so I can do mediaum size jobs, but it's cold and wet here in Boston <sigh> and I can only stand so much out in my driveway).
If anybody has a URL or PDF of an exploded view of this axle / diff assembly then please send it to me.
Jay - [email protected]
BTW, I just found this - does it apply to me? (sound like a sinch, eh?)
In Reply to: Re: 95 tahoe not engaging 4 wheel drive posted by mike on January 11, 03 at 19:06:23:
1995 has the front axle with the thermo shift solenoid in the front axle. Has a fluid that must heat up to shift. Bad engineering. Chevy replace approx 75,000 of them in 95-96 but no recall. Go to a dealer and get the electric conversion solenoid and harness. Takes about 1/2 hout to install. This will make a solid shift every time. Try http://www.gmotors.com/
(Brasington Cadillac) Got my conversion there last yr for $76 with shipping and it works flawlesly.