2nd Gen Non-Engine/Transmission 98 5.9 vacuum diagram ?

[Beck]

My a/c is defaulting to defrost, I'm sure its a vacuum leak, can anyone tell me where to find a diagram on this site or offer any how too's on how to run the leak down, thanks guy's !

 

[GAmes]

Does this help? http://static.cargurus.com/images/site/2013/10/06/16/31/pic-6527090476046796843.jpeg

 

[BigPapa]

I'd be willing to bet it's the rubber fitting on the vacuum pump. I think it has a check valve in it, not that the check valve has anything to do with your problem. Just letting you know just a rubber elbow may not be good enough. I've had to replace mine.

 

[Beck]

Ill bet so, thanks

 

[crabman]

Thanks for the excellent link! I printed it out for a quick complete 1 page diagram of system. Never know when you might need one.

 

[klcammie]

Thanks from me too. Saved it to computer for future.