Burning rubber smell when driving on the freeway

[Rudy67chevy]

my 02 silverado has a burning rubber smell when driving on the freeway. When i have the ac on.

[Josh]

I would check your AC belt and see if it isn't about burnt up. Also look at your clutch on the compressor and see if it is failing.

[clinebarger]

Originally Posted by Rudy67chevy

clutch on the compressor ? where is that

Its on the right side down low. The Denso compressors on theses truck are known to fail. They are a variable displacement compressor, When they do fail its get stuck on "high" (too much head pressure) causing belt slippage, belt breakage, & what I see most is tensioner breakage. Im not condeming your compressor, just giving a heads up. follow Josh's instructions first.

[Josh]

The clutch is on front of the AC compressor on the far left of that picture. Generally when they start going bad you'll see the belt burning up and/or the clutch starting to fail. I used to put 3-4 of the 02 model compressors a month when the trucks were still under warranty. I wouldn't condemn the compressor without hooking up some gauges etc. on it and see if its acting up cause it could be a simple case of an 8 years old belt that just needs replacing.