problems ofr the supra

Jay633 · 04-07-2010, 04:20 AM

hey, umm so i put my heater to 85 degrees to see if it warms up but nothing happens. all you hear and feel is the air coming in to the vehicle but does not warm me up.. Suggestions???

Green7mgte · 04-07-2010, 05:13 AM

do you have coolant in the system? is your thermostat faulty? is your rad cap in working order? check those out first before we jump to worst case scenario, heater core problems.

no coolant no heat!
non opening thermostat.. no heat, does your car thermostat gauge raise toward overheating?
if your rad cap is faulty it will not open and allow coolant to pass. ergo no heat also. and again does your car gauge raise?

good luck.

btwilson86 · 04-07-2010, 07:00 AM

Quote:

Originally Posted by Green7mgte

if your rad cap is faulty it will not open and allow coolant to pass

This statement can be somewhat misleading, so I thought I'd point out for anyone reading this in the future that the rad cap does not restrict the flow of coolant in the radiator. It's purpose is to allow a controlled pressure in the cooling system so that it can raise the boiling point of the coolant (so it stays a liquid). Once it reaches the specified pressure, it's supposed to open slightly and allow some coolant to flow into the reservoir to maintain that pressure. After the coolant begins to cool, the pressure will drop creating a vacuum in the cooling system. This will draw the coolant from the overflow tank back into the cooling system (as long as there are no leaks in your cooling system).

lol, that was supposed to only be a quick statement. Oh well, Rad Caps 101 with Prof. Wilson

cre · 04-09-2010, 12:36 AM

And now for an answer related to the OP's question....

Check this: http://www.supras.com/06/techcenter/display.php?QID=67
It's most likely a faulty VSV on the heater control valve.

MA70-3.0GT · 04-10-2010, 01:06 PM

cre beats me to it once again!

Yeah first things first is make sure the vsv is actually opening the heater valve when you turn the heat up, then we can start worrying you with the more involved stuff! Also, any recent coolant replacement or top-up before this happened? Airlocks can be tricky to get rid of when the system's been emptied.

Jay633 · 04-11-2010, 08:39 PM

so i looked into the vsv for my heater problems and found this

well now i looked into the spare parts i had and found this

and was wondering what connects to it. it looks exactly to the one thats broken on the vsv

04-07-2010, 04:20 AM	#1
Jay633 3" Exhaust Join Date: Mar 2010 Location: Oxnard Posts: 109	problems ofr the supra hey, umm so i put my heater to 85 degrees to see if it warms up but nothing happens. all you hear and feel is the air coming in to the vehicle but does not warm me up.. Suggestions???

04-07-2010, 05:13 AM	#2
Green7mgte Supra Forum Moderator Join Date: Nov 2009 Location: Green-Ohio Posts: 1,297	do you have coolant in the system? is your thermostat faulty? is your rad cap in working order? check those out first before we jump to worst case scenario, heater core problems. no coolant no heat! non opening thermostat.. no heat, does your car thermostat gauge raise toward overheating? if your rad cap is faulty it will not open and allow coolant to pass. ergo no heat also. and again does your car gauge raise? good luck. __________________ 92 Ma71 7mGTE Auto. SafcII Supra FAQ Supra MKIII FAQ Classified Section guidelines :

04-09-2010, 12:36 AM	#4
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	And now for an answer related to the OP's question.... Check this: http://www.supras.com/06/techcenter/display.php?QID=67 It's most likely a faulty VSV on the heater control valve. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

04-10-2010, 01:06 PM	#5
MA70-3.0GT 12psi boost Join Date: Oct 2009 Location: Crewe, England Posts: 356	cre beats me to it once again! Yeah first things first is make sure the vsv is actually opening the heater valve when you turn the heat up, then we can start worrying you with the more involved stuff! Also, any recent coolant replacement or top-up before this happened? Airlocks can be tricky to get rid of when the system's been emptied. __________________ '89 MA70 Supra GT aero 3.0turbo JDM, Rebuilt motor, K&N intake, 3" stainless turbo-back. New turbo and braided line kit... '89 Honda NC27 400, NC23 cams, open pipe, PC36a shock & possibly Showa USD forks... '83 Yamaha 29R XJ750E-II, number 69 off the line, only runner in the country? Original except Koni shocks '95 Honda PC26 CB500R, Winter hack, hateful, trying to sell it I'm not paranoid, they really ARE after me!!!

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04-11-2010, 08:39 PM	#6
Jay633 3" Exhaust Join Date: Mar 2010 Location: Oxnard Posts: 109	so i looked into the vsv for my heater problems and found this well now i looked into the spare parts i had and found this and was wondering what connects to it. it looks exactly to the one thats broken on the vsv