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5280vvti
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5280vvti

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2002 Toyota Celica GT

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Apr 21, 7:10pm - #161560 
Does heater affect performance?

I notice that everytime I turn on my heater, my car feels like it looses power. If I'm at a stop and turn on the heater the car will immediately start idling higher. Is this to keep the engine at a certain temperature?
Shouldn't the heater not affect Performance in anyway? (The A/C is obviously not on...)

Is this normal?

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My Sixth Gear
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My Sixth Gear
2003 Spectra Blue Mica Toyota Celica
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2003 Toyota Celica

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Chicago, Illinois
Apr 21, 7:11pm - #161561 
yes it is normal, you have ABSOLUTELY nothing to worry about


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eric_h
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2low2slow
2002 Toyota Celica GT

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St.George, UT
Apr 21, 7:16pm - #161562 
yup hes right^^^ the a/c is another story, THAT will reduce your power because it runs off the engines crank


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CeLlYgT04
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Orange County, Ca
Apr 21, 7:17pm - #161563 
werd

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Milford, NJ
Apr 21, 7:23pm - #161564 
when the a/c is not on the OFF position, you lose power.


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eric_h
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2002 Toyota Celica GT

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St.George, UT
Apr 21, 7:28pm - #161565 
thats what i ment


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5280vvti
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5280vvti

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Apr 21, 7:31pm - #161566 

Thanks for the replys guys, but why does the heater cause a reduction in power?

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eric_h
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2002 Toyota Celica GT

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St.George, UT
Apr 21, 7:39pm - #161567 
the heater doesnt, it just spins the fans and takes hot air from your engine bay. the a/c does when its on causue that f-er spins off the crank shaft to get going, your rpms are just going up a little to compensate for the heat removefd from the engine


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ironracer4130
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ironracer4130

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2002 Toyota Celica GT

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Long Beach / Irvine CA
Apr 21, 8:57pm - #161568 
how about when you turn the front defroster on? I notice that the air is a lot cooler than normal. Is the AC running? because i like to drive with it on to cool my feet.

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GTSbyTRD
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GTSbyTRD

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2000 Toyota Celica

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Ft. Wayne, Indiana
Apr 21, 9:04pm - #161569 
I seem to get better gas milage if i turn my heater off...

Maybe its all mental though confused thumbsup


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Krayze
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Pittsburgh, PA
Apr 22, 4:05pm - #161570 
yes your a/c is running with you defreoster.

also how can the defroster cool yoru feet

it blows on the dash unles syou ahve it on defrost and heat then it will blow top and bottom of dash


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5280vvti
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Apr 22, 4:46pm - #161571 
^ You mean the a/c runs even when the A/C light isn't on confused spineyes

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eric_h
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Apr 22, 5:20pm - #161572 
no the deforster is just a fan that blows air over the dash, not the a/c, the a/c is a separate unit in itself


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Krayze
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Pittsburgh, PA
Apr 22, 8:41pm - #161573 
wrong as off a few years ago all new cars defrosters use the a/c not at full blkast but if you use your fornt defroesters your a/c is running.

it is because teh a/c helps take the misture out of the air thus defrosting ou windows.

yes it is even running when you have it on hot in the winter. go ask any mechanic who works on new cars,


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ragingpaseo
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ragingpaseo
2003 blue Toyota Celica
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2003 Toyota Celica

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towson, md
Apr 22, 9:24pm - #161574 
simply your engine is fighting for electricity...

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DaBigTickett
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Chino Hills, CA
Apr 22, 9:50pm - #161575 
Originally Posted by My Sixth Gear
yes it is normal, you have ABSOLUTELY nothing to worry about

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Celicatastrophe
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2000 Toyota Celica GT

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Jacksonville, Florida
Apr 22, 10:07pm - #161576 
As someone said even if your A/C button is off and you use the defroster your a/c starts running. Its quite obvious when the air coming out is very cold yet the A/C button is off. I'm glad someone mentioned that because I wasn't sure if i was losing it.


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ironracer4130
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Long Beach / Irvine CA
Apr 23, 11:12am - #161577 
yeah that's what i meant. i leave the knob on the second to last one on the right, where it shoots air from the top of the dash and the bottom so it cools my feet. im the type of person that does't wear shoes when i drive.Yeah, i always thought that the ac was running with the light off but wasn't sure either. now i know, thanks. thumbsup

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5280vvti
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Apr 23, 12:27pm - #161578 
Thanks for all the replys guys, it all makes sense now smile

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stefanoc
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Apr 23, 12:46pm - #161579 
i know a lot of ppl turn on their heater when racing for some reason. is that just something stupid or do they do it for a reason?

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5280vvti
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Apr 23, 12:48pm - #161580 
Originally Posted by stefanoc
i know a lot of ppl turn on their heater when racing for some reason. is that just something stupid or do they do it for a reason?


I do it before a race. It lets out a lot of the hot air, since the car is producing so much more of it.

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CID498
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CID498

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So.Cal
Apr 23, 3:24pm - #161581 
OK now fer the truth about heaters...


You will not lose power while running it how it werks is by taking hot water from yer cooling system and runnin it through a heater core in the dash, cabin air is moved by a blower motor that is shared by the heater core and the evaporator for the a/c , The fans on the condensor and radiator only come on when the a/c is on or when the temp sensor on the radiator is tripped. the reason racers run the heater is it adds more engine cooling.


So the answer is NO it does not rob horsepower.


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eric_h
2low2slow
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2002 Toyota Celica GT

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St.George, UT
Apr 23, 9:47pm - #161582 
guess i learned something rice


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