A/C On: Bogs The Motor Down

[shreksbrother]

When I turn my A/C on, my voltage drops significantly, the temp starts rising, and if I give the truck gas, the belt squeals and the voltage gauge actually drops more! It's like the A/C is putting too much of a strain on the engine. With the A/C off, the gauge stays in the middle and there are no issues whatsoever, but it's getting hot and I'm a sissy!
Here's what I've done so far:
- Replaced the A/C clutch/compressor assy. with a brand new one
- Pulled the 105 amp alternator and had it tested... Tested good.
- Had the battery checked... Tested good.
- Changed to Goodyear Gatorback belt, no indications of slippage on the belt.
- Changed the tensioner (just in case)
To me, it seems like the electrical system can't keep up with the demand the A/C compressor puts on it, but why? Anyone else have experience with this problem?
Thanks!

 

[95TwinTT]

When I turn my A/C on, my voltage drops significantly, the temp starts rising, and if I give the truck gas, the belt squeals and the voltage gauge actually drops more! It's like the A/C is putting too much of a strain on the engine. With the A/C off, the gauge stays in the middle and there are no issues whatsoever, but it's getting hot and I'm a sissy!
Here's what I've done so far:
- Replaced the A/C clutch/compressor assy. with a brand new one
- Pulled the 105 amp alternator and had it tested... Tested good.
- Had the battery checked... Tested good.
- Changed to Goodyear Gatorback belt, no indications of slippage on the belt.
- Changed the tensioner (just in case)
To me, it seems like the electrical system can't keep up with the demand the A/C compressor puts on it, but why? Anyone else have experience with this problem?
Thanks!

Are you saying that you replaced the air conditioner compressor itself, or just the clutch? What about the freon? Anything been done recently with freon as far as adding or service of any kind? Does this truck have just one evaporator coil?

Need to narrow down the variables.........