95 5.7 throwing belt??

BigWheelinBubba · June 29, 2005

I just put a new belt on my truck last week. The other day I turned the a/c on as soon as i got in the truck and it threw the belt off of the a/c compressor. I put it back on and it was all good for about another week. Yesterday on my way home (a/c on) it threw the belt again. I put a new one on and its been fine with the a/c off. I'm now scared to run the a/c

Question: Would it fix the problem if i recharged the system with the stuff that has the oil in it? I assume that is my problem... ??

I just bought the truck a few months ago so i don't know much about prior maintenence or repairs (bought it from a dealer friend who got it at an auction).

Thanks in advance for any input.

GM-Tech · June 29, 2005

If the compressor is seizing up, causing the belt to come off, adding oil isn't going to help. Too much oil can be a problem too, so just adding some arbitrary amount isn't necessarily going to help.

BigWheelinBubba · June 30, 2005

If the compressor is seizing up, causing the belt to come off, adding oil isn't going to help. Too much oil can be a problem too, so just adding some arbitrary amount isn't necessarily going to help.

<{POST_SNAPBACK}>

Thanks for your input!

Well i added a can of oil to the system and it seemed to work. I drove it all day yesterday in 90* heat with the a/c blaring...

One thing my buddy said could also be causing this is the idler pulley next to the compressor. I'm just going to get a new one for peace of mind seeing as how the truck has 150k miles and it probably still has the original on it.

Wingnut · July 1, 2005

One thing my buddy said could also be causing this is the idler pulley next to the compressor. I'm just going to get a new one for peace of mind seeing as how the truck has 150k miles and it probably still has the original on it.

<{POST_SNAPBACK}>

That's what my '92 was doing. Shucking the belt at random times. It was the idler pulley.

/.02