04 6.0 ltr A/C Question

[RAMBUNCTIOUS]

i am not a mechanic.

but my stepdads 04 6.0 A/C is blowing warm air i figured it needed a charge, so i bought a couple cans. i hooked my gauge up to it and it swept from 25-45 psi. depending on if the clutch was engaged. my gauge says thats normal psi's??


also the compressor engages for about 3-4 seconds, then disengages for 3-4 seconds and so on and so forth...




O now i cant even get the clutch to engage... checked fuse under steering wheel and its still good, switched out with fresh fuse, but to no avail.

so please help a cummins man out on how to fix this AC issue.

thanx,
Rambunctious

 

[Joush]

There might be a possible leak in the system if the a/c was cycling on and off.