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A/C turning off with throttle #4500745
08/28/17 07:54 PM
08/28/17 07:54 PM
Joined: Feb 2013
Posts: 11,088
Phoenix, AZ
Nick1994 Offline OP
Nick1994  Offline OP
Joined: Feb 2013
Posts: 11,088
Phoenix, AZ
This is on my grandparent's 2011 Honda CR-V LX 66k miles.

When accelerating with around 1/2 or more throttle, the A/C compressor kicks off and it starts blowing warm air out of the vents. Once up to speed it gets cold again. A few months ago I had my mechanic check out the A/C and the pressures are fine, don't remember what they were but he said they were fine. I know full throttle on most modern cars will do this but 1/2 throttle? We need all the A/C we can get in Phoenix.

Hard throttle usage is mandatory, this K24 is gutless in this car.

Thanks for any ideas.


2015 Hyundai Sonata 2.4L 88k Motorcraft Synthetic Blend 5w30 & OEM
2000 Toyota Camry 2.2L 231k Valvoline 5w30 & Fram Ultra
1996 Jeep Cherokee 4.0L 147k Mobil 1 HM 10w40 & Fram Ultra
Re: A/C turning off with throttle [Re: Nick1994] #4500752
08/28/17 08:00 PM
08/28/17 08:00 PM
Joined: Aug 2003
Posts: 13,141
NE,Ohio
Rand Offline
Rand  Offline
Joined: Aug 2003
Posts: 13,141
NE,Ohio
With gas pedal tuning from "throttle by wire" halfway down is close to full throttle
so its reasonable they turn off the A/C.

Operating as intended.


2019 Jeep Cherokee Trailhawk 2.0T
Re: A/C turning off with throttle [Re: Nick1994] #4500753
08/28/17 08:00 PM
08/28/17 08:00 PM
Joined: May 2012
Posts: 1,836
The land of USA-made Subies!
SubieRubyRoo Offline
SubieRubyRoo  Offline
Joined: May 2012
Posts: 1,836
The land of USA-made Subies!
This should help:
Moar Powah from K24!

Re: A/C turning off with throttle [Re: Rand] #4500758
08/28/17 08:02 PM
08/28/17 08:02 PM
Joined: Feb 2013
Posts: 11,088
Phoenix, AZ
Nick1994 Offline OP
Nick1994  Offline OP
Joined: Feb 2013
Posts: 11,088
Phoenix, AZ
Originally Posted By: Rand
With gas pedal tuning from "throttle by wire" halfway down is close to full throttle
so its reasonable they turn off the A/C.

Operating as intended.
Haven't had this issue with countless other cars with throttle by wire


2015 Hyundai Sonata 2.4L 88k Motorcraft Synthetic Blend 5w30 & OEM
2000 Toyota Camry 2.2L 231k Valvoline 5w30 & Fram Ultra
1996 Jeep Cherokee 4.0L 147k Mobil 1 HM 10w40 & Fram Ultra
Re: A/C turning off with throttle [Re: Nick1994] #4500765
08/28/17 08:08 PM
08/28/17 08:08 PM
Joined: Mar 2016
Posts: 1,565
Toronto
PeterPolyol Offline
PeterPolyol  Offline
Joined: Mar 2016
Posts: 1,565
Toronto
Originally Posted By: Nick1994
this K24 is gutless in this car.


That's why it's programmed to lock out at half throttle wink


Scambling for solutions is a hopelessly futile endeavour and potentially dangerous, without first coming to a solid, personal understanding of the problem. Beware riding the ideological hobby horse.
Re: A/C turning off with throttle [Re: Nick1994] #4500778
08/28/17 08:17 PM
08/28/17 08:17 PM
Joined: Dec 2006
Posts: 976
midwest
JamesBond Offline
JamesBond  Offline
Joined: Dec 2006
Posts: 976
midwest
My escort does this, it is a little low on refrigerant. At idle the low side pressure won't drop below 25 psi or so but when you rev it up it drops to about 22psi when the low pressure switch shuts off the compressor until the low side pressure comes back up. It never really shuts off long enough for the air to get warm, but then again I'm not in Phoenix.

Check the pressures again at 2000 rpm at least.

Re: A/C turning off with throttle [Re: Nick1994] #4500807
08/28/17 08:59 PM
08/28/17 08:59 PM
Joined: Jan 2006
Posts: 1,063
Ruidoso, NM USA
ammolab Offline
ammolab  Offline
Joined: Jan 2006
Posts: 1,063
Ruidoso, NM USA
Don't need throttle by wire. Many cars have a manifold vacuum switch to cut compressor when you use a lot of throttle.
May save the compressor from over speed and may save your butt passing on the 2 lane Hwy.


2009 Honda CR-V
2011 BMW R1200R
2005 Kaw Ninja 250
1994 Jeep Wrangler 2.5L
2016 Chevy SS Sport Sedan
Re: A/C turning off with throttle [Re: Nick1994] #4500826
08/28/17 09:19 PM
08/28/17 09:19 PM
Joined: Oct 2007
Posts: 1,548
utah
dareo Offline
dareo  Offline
Joined: Oct 2007
Posts: 1,548
utah
My BMW 540 wagon would cut the compressor at WOT only. I thought it was a cool feature. But half throttle in a 4 pot suv sounds like a bad idea.


2016 Golf Wagon 5MT, 2014 Accord Sport 6MT, 2016 GMC 1500 SLT 6.2
Re: A/C turning off with throttle [Re: Nick1994] #4500833
08/28/17 09:25 PM
08/28/17 09:25 PM
Joined: Jun 2003
Posts: 5,951
Illinois
SHOZ Offline
SHOZ  Offline
Joined: Jun 2003
Posts: 5,951
Illinois
My Accent does this noticeably when shifting with the manual trans.


2008 Hyundai Accent 1.6L 5 sp manual hatchback
2010 Hyundai Genesis Coupe Track 2L Turbo 6sp manual
Re: A/C turning off with throttle [Re: Nick1994] #4500907
08/29/17 12:09 AM
08/29/17 12:09 AM
Joined: Feb 2013
Posts: 11,088
Phoenix, AZ
Nick1994 Offline OP
Nick1994  Offline OP
Joined: Feb 2013
Posts: 11,088
Phoenix, AZ
We might be driving it up to Utah on September 8th so if there's a switch or sensor we can replace that would be awesome. Hopefully it isn't just the nature of the beast.

Below are just some of the modern cars I've driven quite a bit that don't do this:
2015 Sonata
2016 Avalon
2005 Tahoe
2002 Trailblazer
2012 Patriot
2014 Grand Caravan
2007 FJ Cruiser
2013 Beetle


2015 Hyundai Sonata 2.4L 88k Motorcraft Synthetic Blend 5w30 & OEM
2000 Toyota Camry 2.2L 231k Valvoline 5w30 & Fram Ultra
1996 Jeep Cherokee 4.0L 147k Mobil 1 HM 10w40 & Fram Ultra
Re: A/C turning off with throttle [Re: Nick1994] #4500913
08/29/17 12:31 AM
08/29/17 12:31 AM
Joined: Mar 2017
Posts: 6,507
...
PimTac Offline
PimTac  Offline
Joined: Mar 2017
Posts: 6,507
...
I wouldn't care for that type of activity either. If I want the a/c off I can push the button myself for that moment.

By chance are you running in eco mode? Just wondering if there is a reason besides the computer trying to out think the driver.


Cannot see signatures any longer so it doesn’t matter.
Re: A/C turning off with throttle [Re: Nick1994] #4501012
08/29/17 06:17 AM
08/29/17 06:17 AM
Joined: Jun 2003
Posts: 17,817
Deplorable in apple valley, ca
Chris142 Offline
Chris142  Offline
Joined: Jun 2003
Posts: 17,817
Deplorable in apple valley, ca
They cut the compressor off to help with acceleration.


02 Wrangler carlube 5w30
87 F250 traveler 15w40
07 fjcruiser Chevron 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40
Re: A/C turning off with throttle [Re: Nick1994] #4501017
08/29/17 06:23 AM
08/29/17 06:23 AM
Joined: Apr 2017
Posts: 1,481
Ontario, Canada
mightymousetech Offline
mightymousetech  Offline
Joined: Apr 2017
Posts: 1,481
Ontario, Canada
This is completely normal.


Mighty Mouse Tech
BMW Tech, Former Acura Tech
2010 Civic Si Castrol 0W40, Redline MTL
2013 BMW 135i M Sport Edition Castrol 0W40, Redline MTL
Re: A/C turning off with throttle [Re: Nick1994] #4501072
08/29/17 07:46 AM
08/29/17 07:46 AM
Joined: May 2009
Posts: 12,283
N.H, U.S.A.
ARCOgraphite Offline
ARCOgraphite  Offline
Joined: May 2009
Posts: 12,283
N.H, U.S.A.
U Shouldn't be needing 1//2 throttle enough to bother your a/c.

If so you need a tune up bad - or a different car with a turbo

or sum ting WANG.


2014 Nissan Rogue S CVT, OC#10 47272mi-QSUD10W30+5w20 Toughguard Filter; '17 Subaru Crosstrek CVT OC#2 ?? mi-SOA/Idemitsu 0w20 + SOA Filter
Re: A/C turning off with throttle [Re: mightymousetech] #4501076
08/29/17 07:49 AM
08/29/17 07:49 AM
Joined: Oct 2005
Posts: 7,094
Colorado
Kuato Offline
Kuato  Offline
Joined: Oct 2005
Posts: 7,094
Colorado
Originally Posted By: mightymousetech
This is completely normal.


+1.

Had this on several vehicles as early as 2000 models.


Thick vs Thin test: 15k / 43k miles complete
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