A/C vacuum lines

Hi, I just bought a 02 S10 crew cab with the 4.3 , when the a/c is on going up a hill the airflow shuts off, I know it's probably a vacuum line cracked. Can anyone tell me where it starts in the engine compartment and ends inside?? Thanks for any help.

Hi, I just bought a 02 S10 crew cab with the 4.3 , when the a/c is on going up a hill the airflow shuts off, I know it's probably a vacuum line cracked. Can anyone tell me where it starts in the engine compartment and ends inside?? Thanks for any help.

locate the vacuum ball....you should also check all the vacuum lines as this will affect your perfomance/mpg.... this is the usual cause of this issue vac line ...vacuum gauge will point out the problem quickly