Heat Consistancy Issues

ddmcse · 03-31-2008, 07:34 PM

sounds like the classic heater vsv to me

toyota Supra pictures heater issue

value works off vacuum ,

no vacuum, no value going up and down = no heat

Chambers · 04-02-2008, 03:53 PM

Ahh that makes sense, thanks for the link but I don't quite like the idea of the heat being dependent on my pedal, I will see about it if I cant fix it other wise. Today I had heat for almost my entire commute, the last five minutes the heat went out again, so I'm still leaning towards electrical, but I could be the valve. Thanks.

mkiiisupra · 04-02-2008, 11:13 PM

i rerouted my vac lines on mine awhile back so it is always open when the car is on.

supramacist · 04-04-2008, 06:28 AM

Hello Chambers.

I don't know why no one has said this yet.

Heater core. Heater core. Heater core.

Those are classic symptoms of a shot heater core dude.

Chambers · 04-04-2008, 08:33 PM

Well dam, would there be any way of telling if the core is bad if I had it out, or is one of those things you hope is bad and spend $$$ on replacing it? lol.

I will have the dash out and have access to the core when I get a more suitable daily driver, my trucks get horrible fuel millage.

Thanks!

supramacist · 04-04-2008, 09:38 PM

Stop using the air and or the heat. You should run fine.
But yes. You'll have to replace the heater core.

Or delete it. It does weigh a bit.

supramacist · 04-05-2008, 05:51 PM

Removal of heating core/AC unit - The Toyota Supra Forums

Maybe this will aid you chambers.

I hope. It should atleast let you know of other options.

03-31-2008, 07:34 PM	#1
ddmcse 500whp yet? Join Date: Jun 2005 Location: CT U.S.A. Posts: 966	sounds like the classic heater vsv to me toyota Supra pictures heater issue value works off vacuum , no vacuum, no value going up and down = no heat __________________ 300+ RW HP Dyno run, jdm,mod turbo,3"exh,electfan,greddyboost Blown HeadGasket info My Supra KiXGaS

04-02-2008, 03:53 PM	#2
Chambers walbro fp Join Date: May 2007 Location: USA - Harford County, Maryland Posts: 481	Ahh that makes sense, thanks for the link but I don't quite like the idea of the heat being dependent on my pedal, I will see about it if I cant fix it other wise. Today I had heat for almost my entire commute, the last five minutes the heat went out again, so I'm still leaning towards electrical, but I could be the valve. Thanks. __________________ Whats in the garage, well.... in the yard. 1986.5 Toyota Supra - NA - 5 spd 1986 Ford Ranger Lowrider - 5 spd 1984 Ford Ranger XLT - 7" Lift - 4X4 - Auto "Stuck in the 80's"

04-02-2008, 11:13 PM	#3
mkiiisupra Lexus & 550's Join Date: Sep 2007 Location: Las Vegas, NV Posts: 570 Blog Entries: 1	i rerouted my vac lines on mine awhile back so it is always open when the car is on. __________________ 1990 Toyota Supra Turbo A/T ------------------------------------------------ Questions about oil? take a look http://www.supramania.com/aehaas/

04-04-2008, 08:33 PM	#5
Chambers walbro fp Join Date: May 2007 Location: USA - Harford County, Maryland Posts: 481	Well dam, would there be any way of telling if the core is bad if I had it out, or is one of those things you hope is bad and spend $$$ on replacing it? lol. I will have the dash out and have access to the core when I get a more suitable daily driver, my trucks get horrible fuel millage. Thanks! __________________ Whats in the garage, well.... in the yard. 1986.5 Toyota Supra - NA - 5 spd 1986 Ford Ranger Lowrider - 5 spd 1984 Ford Ranger XLT - 7" Lift - 4X4 - Auto "Stuck in the 80's"

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04-04-2008, 06:28 AM	#4
supramacist 1000whp postwhore Join Date: Apr 2007 Location: Escape from the Prison Planet Posts: 1,356	Hello Chambers. I don't know why no one has said this yet. Heater core. Heater core. Heater core. Those are classic symptoms of a shot heater core dude.

04-04-2008, 09:38 PM	#6
supramacist 1000whp postwhore Join Date: Apr 2007 Location: Escape from the Prison Planet Posts: 1,356	Stop using the air and or the heat. You should run fine. But yes. You'll have to replace the heater core. Or delete it. It does weigh a bit.

04-05-2008, 05:51 PM	#7
supramacist 1000whp postwhore Join Date: Apr 2007 Location: Escape from the Prison Planet Posts: 1,356	Removal of heating core/AC unit - The Toyota Supra Forums Maybe this will aid you chambers. I hope. It should atleast let you know of other options.