2002 chevy trailblazer_ls
If you are talking about using the by-pass belt it should follow the yellow line in this posting http://forums.trailvoy.com/showpost.php?p=1003552&postcount=61How did you route the belt? I tried going around the alternator to the fan then the crank but the belt is to long. What am I missing?
My bearing didn't seem bad either, after I replaced it it was fine. I had to wait for my bearing to come in so I ran a bypass belt for a couple of weeks.Not sure I can hear the noise is coming from the A/C but not sure what is making the noise. From reading the posts I just assumed that it was the pulley bearing, but now that I have pulled it it don't seem to bad. Thats why I questioned if the other bearing could be an issue but again that bearing don't seem to be bad either. I'll start with the pulley bearing and see if that stops the Grrrrrrr and go from there.
Have you ever seen a post about that bearing ?
If yours was the same thats good enough for me, I'll replace the pulley bearing. and Yes the one in the compressor.My bearing didn't seem bad either, after I replaced it it was fine. I had to wait for my bearing to come in so I ran a bypass belt for a couple of weeks.
Are you talking about the bearing that is in the compressor? Maybe try to post a pic of it.
I'll be doing ours in the next day or two hopefully, gotta check on the bearing. I worry that ours may need further work on the clutch? It had been making that tinny rattle when A/c is on iirc...:hopeless I remember years ago that's what they use to say (tinny rattle on-clutch)I did this today. Picked up a bearing from a local place that happend to have the exact size in stock for $27.xx. The reciept said 35x50x20 ac clutch bearing. Went and bought a pair of snap ring pliers and rented the jaw puller, and fan tool from autozone.
The fan took the longest to get off, over an hour. I could not figure out how to get leverage with the tool. Finally I took a piece of the handle from the jack and put it on the end. That along with a large adjustable gave me all the leverage i needed to break it lose.
Besides that the only other thing I will add is that to get the bearing out, I put a large socket in it and pounded on that. It took a few good solid over the shoulder blows from a sledge to finally break it lose. I can see why people have trouble with that part, but hey if all else fails get a bigger hammer right? worked for me! The bearing went back in very easily after i cleaned it up with some 220 grit paper and put a thin layer of grease on it like the op said. I found a tap worked best for staking it in place back in the pulley.
truck is quite as can be now. the key to knowing this is your problem is that the sound goes away when the ac is turned on and the noise is there when the ac is off.