A/C Horsepower Drain? - Drive Accord Honda Forums | radio-pro.ru
View Poll Results: Can you feel a loss in power with the A/C on?
V6 - No loss in power 14 26.42%
V6 - I can feel it 8 15.09%
I4 - No loss in power 9 16.98%
I4 - I can feel the pain 22 41.51%
Voters: 53. You may not vote on this poll

LinkBack Thread Tools Search this Thread Rate Thread Display Modes
post #1 of 13 Old 09-21-2004, 12:38 PM Thread Starter
#8 in 08

Join Date: Sep 2004
location: Knoxville, TN
Posts: 914
Thanks: 0
Thanked 3 Times in 2 Posts
A/C Horsepower Drain?

Originally posted by stiller fan
a/c's rob the 4-banger of about 5-10 horses...at least it feels like it to me anyway...
Originally posted by BenjiBoy650
Much more than 5-10!

These posts from a ways back got me thinking. How much power does the A/C rob?

And as far as the poll goes, can you feel a loss of power?

PRIOR: 1999 Accord EX-L 5M (Rear-ended & totaled)
CURRENT: 2012 Mustang GT 6M
Coil99 is offline

post #2 of 13 Old 09-21-2004, 12:43 PM Thread Starter
#8 in 08

Join Date: Sep 2004
location: Knoxville, TN
Posts: 914
Thanks: 0
Thanked 3 Times in 2 Posts
Re: A/C Horsepower Drain?

I notice it primarily when starting off. There is a big difference starting from a complete stop with the A/C on. It isn't as noticeable in any other gear or at any other rpm.

PRIOR: 1999 Accord EX-L 5M (Rear-ended & totaled)
CURRENT: 2012 Mustang GT 6M

Last edited by Coil99; 06-04-2008 at 06:04 PM. Reason: A/C weather again...
Coil99 is offline
post #3 of 13 Old 09-21-2004, 02:19 PM
ready to go....

princess's Avatar

Join Date: Aug 2003
location: Kyle, tx
Posts: 20,015
Thanks: 0
Thanked 46 Times in 43 Posts
Send a message via AIM to princess
I put I can feel it, but I want to explain.

The A/C shuts off under a really heavy load....it's supposed to & I know when it does.

I can certainly tell the difference on days that it's not kicking on.....I have a tendency to push the pedal the same & squeal wheels! So I feel when it kicks off more than when it comes on!

So I feel a power gain, not so much a power loss!
princess is offline

post #4 of 13 Old 09-21-2004, 02:37 PM
pro common sense!

anysia's Avatar

Join Date: Jun 2004
location: transplanted pittsburgh native
Posts: 7,084
Thanks: 0
Thanked 0 Times in 0 Posts
since i haven't utilized all of my car's power from a stop, it's hard to say if i'm loosing much power, but i do know it's harder to get it in gear from a stop when the ac is on! but on the highway, i don't notice too drastic of a power loss if i turn the ac on.

06 Nighthawk Black Acura TSX 6 spd~mine~20mm tl sway bar
08 Alabaster Silver Metallic RDX Tech Pkg~stevels'

06 Sapphire Blue Accord V6 6spd sedan w/navi~stevel's~Accord all season floor mats and trunk tray
04 Nighthawk Black EX Accord Coupe~5spd~crooked

03 Ruby Red Pearl LX Civic Sedan (at)
00 Vintage Plum Pearl LX Civic Sedan (at)
anysia is offline
post #5 of 13 Old 09-21-2004, 04:58 PM
Rush fan

04blkpearlcoupe's Avatar

Join Date: Aug 2004
location: southern california
Posts: 871
Thanks: 0
Thanked 0 Times in 0 Posts
i feel a slight loss in power when i turn it on. have to think about it to notice it (4 cyl. auto).
04blkpearlcoupe is offline
post #6 of 13 Old 09-21-2004, 05:05 PM

stevel's Avatar

Join Date: Jun 2004
Posts: 3,311
Thanks: 0
Thanked 1 Time in 1 Post
this is my biggest gripe with this car.... during acceleration, the revs drop significantly faster when shifting than with the a/c off... and I can feel it kick in when cruising on the highway. hopefully soon honda will incorperate clutchless compressors like some other manufacturers.... that would make it basically unnoticable to us..... I've also noticed that when I leave the car sit at the airport for 3 to 5 days, when the a/c compressor first comes on, there is a very loud clunk type sound.. but only after it hasn't run for days... anyone else notice this????????
stevel is offline
post #7 of 13 Old 09-21-2004, 05:28 PM
Out of Control

BenjiBoy650's Avatar

Join Date: Aug 2003
Posts: 11,205
Thanks: 0
Thanked 10 Times in 8 Posts
I notice the noise quite a lot, especially when I turn it on when the car is cold (high RPM clutch engagement). Doesn't bother me, AC still works good. The problem is that it revs significantly slower with the AC on. To drive at normal pace with the AC on around the city, I end up using 40-50% more throttle, and sometimes that means the pedal is on the floor
BenjiBoy650 is offline
post #8 of 13 Old 09-21-2004, 05:28 PM
ready to go....

princess's Avatar

Join Date: Aug 2003
location: Kyle, tx
Posts: 20,015
Thanks: 0
Thanked 46 Times in 43 Posts
Send a message via AIM to princess
Mine has sat for 2 weeks & not made any abnormal sounds when using it the first time. Yes, I do hear the compressor though.
princess is offline
post #9 of 13 Old 09-22-2004, 08:05 AM

stiller fan's Avatar

Join Date: Aug 2004
location: in my car these days...
Posts: 15,969
Thanks: 152
Thanked 32 Times in 31 Posts
Send a message via AIM to stiller fan Send a message via Yahoo to stiller fan Send a message via Skype™ to stiller fan

i notice the a/c compressor kick on the most when i'm trying to accelerate. i notice it when i'm stopped, or at 70+ mph...i always feel it kick on...
stiller fan is offline
post #10 of 13 Old 03-21-2013, 09:17 PM
Four Doors/Three Pedals

GradyPhilpott's Avatar

Join Date: Feb 2013
location: New Mexico
Posts: 1,410
Thanks: 103
Thanked 122 Times in 94 Posts
I'm not sure about the new car yet, but in previous experience, the loss of power is noticeable and if I need to get from a stoplight, I'll turn off the AC before hand.

AC compressors drain power, whether or not it's perceptible.

2013 Honda Accord EX 2.4L 6MT MSM
OEM Splash Guards
OEM Door Visors
OEM Moonroof Visor
FormFit Hood Air Deflector
Horn Upgrade
Pilot Genuine Black Leather Steering Wheel Cover
K&N 33-2498
Pirelli Cinturato P7 All Season Plus
GradyPhilpott is offline
post #11 of 13 Old 03-22-2013, 05:56 AM
Old Bird...sometimes wise

RTexasF's Avatar

Join Date: Sep 2004
location: North TX east of Dallas
Posts: 13,622
Thanks: 127
Thanked 216 Times in 150 Posts
Although I no longer own an Accord I checked 4 cyl - feel the pain. My '04 2.4l 5 speed really fell on its face with the A/C on which was 99% of the time in TX. My 3.5l RAV4 uses a different type of compressor and I literally can't tell if it's on or off other the cold air blowing.
RTexasF is offline
post #12 of 13 Old 03-15-2014, 08:30 PM
4th Gear

cD5myeleanor's Avatar

Join Date: Jan 2013
location: Atlanta
Posts: 381
Thanks: 22
Thanked 20 Times in 17 Posts
anyone ever experienced an AC/PS delete? so much raw power
cD5myeleanor is offline
post #13 of 13 Old 03-17-2014, 12:36 AM
5th Gear

Join Date: Mar 2010
location: New Iberia, Louisiana
Posts: 738
Thanks: 186
Thanked 35 Times in 32 Posts
Before I cleaned the throttle body, the loss in power with A/C on was significant and the idle RPMs were struggling to keep up. Ever since I cleaned the throttle body, the loss in power is barely noticeable and the RPMs are fantastic. So, voted for loss in power - however small it may be.

I also think, A/C power drain is a common problem in 2003 Accords I4 and V6.

2012 Toyota Avalon Limited, Magnetic Grey - Wife's Car
2012 Honda Odyssey Touring Elite, Alabaster Silver - Family Hauler/My daily ride
2003 Accord EXV6, 5AT Sedan- Sold

Current OEM: Moonroof Visor, Window Visors, Roof Rails, Crossbars, Body Side Moldings, Splash Guards, Cargo Tray, Door-Sill Garnish, All-Weather Floor Mats, Wheel Locks
Future OEM: Remote Engine Start

"Performance modifications are not worth the hassle on an old daily ride. Buy a performance car instead " - Accord_Rules
Accord_Rules is offline


Quick Reply

Register Now

In order to be able to post messages on the Drive Accord Honda Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
The answer to the random question may be found under the Off Topic section of the forums and in the "Drive Accord Forums" category.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools Search this Thread
Show Printable Version Show Printable Version
Email this Page Email this Page
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Linear Mode Linear Mode
Rate This Thread:

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to

Related pages

where to find sirius radio idviper 5901 priceduplicate honda keyshonda accord 2.4 oil capacityhow much for coolant flushjet performance v-force pluscamber bolts autozone2002 honda odyssey belt tensionercastrol edge 10w-60i pike winter tireschanging rear main sealhonda accord rochester nydoes 2012 honda civic have backup cameralow profile trailer hitchhonda civic wheel studhonda civic door handlesa12 acura servicehood clampcheck engine light flashing car sputteringpennzoil platinum oil change intervalsqueaking clutch pedal2003 honda accord radiohondalink ahaare mastercraft tires any goodhonda accord power steering fluid changeborbet bs5 wheelshonda accord transmission repairbleeder capkia sx turbo 0 60repair leather tearvalet switch location2010 honda civic wiring diagramdrain and fill vs flush transmissionhow to get honda radio code from serial numberhonda accord rotor replacement cost2013 honda accord coupe ex l v6 reviewhow to test iac with multimeterprices on tires at costcobg 109 compression performance restoration reviewshow to read a transmission fluid dipstickpro stop ceramic brake pads05 altima coiloversauxiliary audio input adaptermagnaflow 350zgrubbs nissan bedfordquaker state oil filterswhat would cause abs light to come onweathertech wind deflectorbbs madrashonda accord 2004 auxbosch ceramic brake padsbrake pedal low after changing padsvaleo juarezprogress rear sway barmugen parts usais power steering fluid flammabletime sert dealershonda odyssey remote startwiring rear view cameradrilled rotors vs regular2003 honda accord blower motor resistordifference between civic lx and exhonda civic lower ball joint98 honda accord firing orderacura service bulletinhow to install snapshot progressivephilips xtreme power bulbsgenuine honda oilhonda accord coupe v6 review2002 honda accord p0420replacing bmw emblem on hoodradio code for 2004 honda accordhonda civic exhaust tipabs light came on in my cars2k ap1 vs ap2how to remove watermarks from windshieldcabin air filter honda accordhonda door sill protectorshonda accord headlight12 inch jl w3sway bar bolt replacementmaint reqd honda