Cold Heater Hose and No Heat

batmmannn · 06-17-2010, 06:44 AM

I am wondering if no heat and cold heater hose that runs into the firewall on the passenger side could be related to any overheating issues.

I just burped my system again but this time turned the heat on high and got a couple of small bubbles out, then nothing.

I notice I have no heat and the heater hose was cool to the touch. Bad heater valve?

Any thoughts on this would be greatly appreciated, would this mean a blocked heater core? Something not working?

I found this thread but I am not sure what hose they are referring to. Is it the bottom hose that is already on the VSV that gets attached to the top of the VSV? It is not very specific. They say the bottom hose that goes to the manifold. Still not clear on this.

http://www.ddmcse.com/turbo/heatervs.htm

Thanks!

Green7mgte · 06-17-2010, 11:29 PM

you take the second vacume hose.. unhook it from the vsv and connect it to the TOP of the vsv.

least that what I made out of it.

Green7mgte · 06-17-2010, 11:30 PM

is your thermostat in working order? what about your rad cap?

batmmannn · 06-18-2010, 01:26 AM

Yeah guys I already replaced the thermostat and radiator cap but got them from AutoZone. The overflow bottle doesn't smell like exhaust my oil is clear and level holding, but I am still getting an over heating.

I pushed up on the PCV a lot and ran the car trying to burp it again. Now it has good heat and my temperature control seems to be working fine.

I am wondering if my Radiator is bad or if my water pumps blades have coroded from it sitting for 7 years. It gets hot but then again I don't have a working electric fan on it yet, but still it is cool out tonight and still it ran hot.

After cool down the reservoir was full of coolant was where it was before I ran it and the radiator is now low on fluid.

Obviously I have a blockage somewhere. The car runs great other than that. Fast and powerful.

The heater works good and the temp control works now but I still have this problem.

I am thinking of getting a BHG test at my local garage and from there going toward having the radiator checked.

If those check out I have to think about a bad fan clutch though it seems to test fine when I stick a rolled up magazine against it. It has force you can't stop the blades.

I don't see a great deal of flow looking down into the radiator, not like I would expect. I wonder if the water pump is just eaten up. It doesn't leak though.

It barely blows any bubbles when I was burping it even after I opoened up the coolant to the heater core. I am puzzeled.
Any Ideas???? I don't see a leak anywhere.

Green7mgte · 06-18-2010, 03:02 AM

that fan really does not make a difference. like i said. mine dosnt turn on all the time. I don't have a radiator shroud and I don't over heat less i have a coolant issue

batmmannn · 06-18-2010, 03:31 AM

Well then I must have a bad radiator, water pump or BHG starting cause I can't figure this damn thing out.

Green7mgte · 06-18-2010, 12:25 PM

just a shot in the dark. (but it happened to me) I tightened one of my clamps down to much and was restricting the flow.. but your saying you are getting none at all. did you do the vsv test?

batmmannn · 06-18-2010, 03:05 PM

What is the VSV Test?

Green7mgte · 06-18-2010, 07:04 PM

the link you posted.. did you try that?

batmmannn · 06-18-2010, 08:25 PM

FIXED IT!
Here is the explanation I didn't want to clutter up the board any worse than I have! Thanks so MUCH!

http://www.toyota-supra.info/forums/...html#post84699

06-17-2010, 06:44 AM	#1
batmmannn 12psi boost Join Date: May 2010 Location: West Virginia Posts: 320	Cold Heater Hose and No Heat I am wondering if no heat and cold heater hose that runs into the firewall on the passenger side could be related to any overheating issues. I just burped my system again but this time turned the heat on high and got a couple of small bubbles out, then nothing. I notice I have no heat and the heater hose was cool to the touch. Bad heater valve? Any thoughts on this would be greatly appreciated, would this mean a blocked heater core? Something not working? I found this thread but I am not sure what hose they are referring to. Is it the bottom hose that is already on the VSV that gets attached to the top of the VSV? It is not very specific. They say the bottom hose that goes to the manifold. Still not clear on this. http://www.ddmcse.com/turbo/heatervs.htm Thanks! __________________ 1987 N/A 7MGE Left Hand Drive MK3 Red 5 Speed and Black Auto Supras My Next project is the Batmobile! Last edited by batmmannn; 06-17-2010 at 07:00 AM.

06-17-2010, 11:29 PM	#2
Green7mgte Supra Forum Moderator Join Date: Nov 2009 Location: Green-Ohio Posts: 1,297	you take the second vacume hose.. unhook it from the vsv and connect it to the TOP of the vsv. least that what I made out of it. __________________ 92 Ma71 7mGTE Auto. SafcII Supra FAQ Supra MKIII FAQ Classified Section guidelines :

06-17-2010, 11:30 PM	#3
Green7mgte Supra Forum Moderator Join Date: Nov 2009 Location: Green-Ohio Posts: 1,297	is your thermostat in working order? what about your rad cap? __________________ 92 Ma71 7mGTE Auto. SafcII Supra FAQ Supra MKIII FAQ Classified Section guidelines :

06-18-2010, 01:26 AM	#4
batmmannn 12psi boost Join Date: May 2010 Location: West Virginia Posts: 320	Rad cap and Termo Yeah guys I already replaced the thermostat and radiator cap but got them from AutoZone. The overflow bottle doesn't smell like exhaust my oil is clear and level holding, but I am still getting an over heating. I pushed up on the PCV a lot and ran the car trying to burp it again. Now it has good heat and my temperature control seems to be working fine. I am wondering if my Radiator is bad or if my water pumps blades have coroded from it sitting for 7 years. It gets hot but then again I don't have a working electric fan on it yet, but still it is cool out tonight and still it ran hot. After cool down the reservoir was full of coolant was where it was before I ran it and the radiator is now low on fluid. Obviously I have a blockage somewhere. The car runs great other than that. Fast and powerful. The heater works good and the temp control works now but I still have this problem. I am thinking of getting a BHG test at my local garage and from there going toward having the radiator checked. If those check out I have to think about a bad fan clutch though it seems to test fine when I stick a rolled up magazine against it. It has force you can't stop the blades. I don't see a great deal of flow looking down into the radiator, not like I would expect. I wonder if the water pump is just eaten up. It doesn't leak though. It barely blows any bubbles when I was burping it even after I opoened up the coolant to the heater core. I am puzzeled. Any Ideas???? I don't see a leak anywhere. __________________ 1987 N/A 7MGE Left Hand Drive MK3 Red 5 Speed and Black Auto Supras My Next project is the Batmobile! Last edited by batmmannn; 06-18-2010 at 03:32 AM.

06-18-2010, 03:02 AM	#5
Green7mgte Supra Forum Moderator Join Date: Nov 2009 Location: Green-Ohio Posts: 1,297	that fan really does not make a difference. like i said. mine dosnt turn on all the time. I don't have a radiator shroud and I don't over heat less i have a coolant issue __________________ 92 Ma71 7mGTE Auto. SafcII Supra FAQ Supra MKIII FAQ Classified Section guidelines :

06-18-2010, 03:31 AM	#6
batmmannn 12psi boost Join Date: May 2010 Location: West Virginia Posts: 320	No Fan Well then I must have a bad radiator, water pump or BHG starting cause I can't figure this damn thing out. __________________ 1987 N/A 7MGE Left Hand Drive MK3 Red 5 Speed and Black Auto Supras My Next project is the Batmobile!

06-18-2010, 12:25 PM	#7
Green7mgte Supra Forum Moderator Join Date: Nov 2009 Location: Green-Ohio Posts: 1,297	just a shot in the dark. (but it happened to me) I tightened one of my clamps down to much and was restricting the flow.. but your saying you are getting none at all. did you do the vsv test? __________________ 92 Ma71 7mGTE Auto. SafcII Supra FAQ Supra MKIII FAQ Classified Section guidelines :

06-18-2010, 03:05 PM	#8
batmmannn 12psi boost Join Date: May 2010 Location: West Virginia Posts: 320	Test What is the VSV Test? __________________ 1987 N/A 7MGE Left Hand Drive MK3 Red 5 Speed and Black Auto Supras My Next project is the Batmobile!

06-18-2010, 07:04 PM	#9
Green7mgte Supra Forum Moderator Join Date: Nov 2009 Location: Green-Ohio Posts: 1,297	the link you posted.. did you try that? __________________ 92 Ma71 7mGTE Auto. SafcII Supra FAQ Supra MKIII FAQ Classified Section guidelines :

06-18-2010, 08:25 PM	#10
batmmannn 12psi boost Join Date: May 2010 Location: West Virginia Posts: 320	Success FIXED IT! Here is the explanation I didn't want to clutter up the board any worse than I have! Thanks so MUCH! http://www.toyota-supra.info/forums/...html#post84699 __________________ 1987 N/A 7MGE Left Hand Drive MK3 Red 5 Speed and Black Auto Supras My Next project is the Batmobile!

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