Is the 4.0 V6 happier with A/C off?

Anyone else notice these trucks run pretty rough with the air-conditioning on?

I've had only 4-cylinders prior and they barely go anywhere with the AC on, but I didn't think a big V6 would care about the load.

My truck still gets up and goes, but shifts and overall smoother with the AC off.

 

Never noticed any roughness at all. I do notice that if I turn it on while at a stop & in gear, you can feel a bump from the idle going up slightly.

 

yeah i feel it when my ac is on in my v6. seems to be getting better the more i use the AC (maybe im just becoming used to it or its freeing itself up)

 

Yeah, seems a bit more hesitant through the gears (up and down). Maybe rough isn't a great adjective...

 

No issue's what so ever in my 2012 since i bought it brand new back in that yr.

 

Yup thats my experience.

 

Nope

 

I recently ran 93 octane through my truck and it runs completely different from regular gas.

 

Mine pulls a little bit of extra power when running but it's not too bad. My wife's 4runner does the same and has the identical motor.

 

Better or worse?

 

I wouldn't say rough but I do notice a little bit of a difference when I turn it on at idle. I know it zaps power but I don't think its enough to notice using the tried and true butt dyno.

 

Butt dyno senses a -5hp change, and -.2 sec throttle response time. When i hit the drags its all lights and radio off to reduce drag on the alternator, and no AC. LOL

 

As long as it doesn't take away my torques then whatever. I need my torques.

 

Haha, good talk. Seems like it's standard, some people just don't notice.

 

Thanks for posting this. I was just going to post a question regarding the same thing. I've had my new 15 since May. Once before and just happened again today. I started her up and then turned the AC on and heard a staring noise, just for a second but loud enough for me to notice. Should I be concerned. Thanks in advance guys

 

I've never heard anything to cause worry, my post is more just discussing the characteristics. You might have something else going on.

 

Rough? No. A touch sluggish if you're light-footed, but it never feels like it's struggling. Still looking forward to it cooling down. It's a bit "happier" with it off.

 

Well said, editing thread title!

 

I notice a very slight power loss with AC on, and mainly just when the weather is hot (over 90°). In addition, lose at least 1 mpg.

 

Every vehicle I have ever had has been happier with the A/C off