heater not working

[dieseltech24179]

ok guys ihave 1988 7mgte the heater vsv i think is the problem cuz the line coming from the top of it is cut off. where does this line run to?

[Bill UK]

I assume yours is a left-hand drive.

[dieseltech24179]

Yes mine is left hand

[dieseltech24179]

So the red hose in the diagram is wat comes off the 90 degree fitting on top of the vsv or the blue one

[dieseltech24179]

ok now that im on my computer now and not trying to view the page on my phone lol. ok so ill have to look again but i think its the pink line in your diagram it runs out and is just laying on my TEMS cover so its runs to fitting 87293e in the diagram which is what? im guessing somewhere on the intake housing

[Busted Knuckles]

My vacuum source tees off the cruise control line. My vsv broke last winter, and I by-passed it. Now, the vacuum line runs straight to the vacuum motor. This is OK, because the vsv is an on/off deal, and activates the motor anytime the temp setting on the dash is above minimum. Temp is controlled by blend doors under the dash. Heat works fine for me.

Mine is an '88 N/A Supra.

[dieseltech24179]

Ok but where does it go if you don't bypass it just so I can find it when I go out to look under the hood that's my problem I have a hard time going from diagram and explanation to actually trying to find it under the hood

[dieseltech24179]

Ok but where does it go if you don't bypass it just so I can find it when I go out to look under the hood that's my problem I have a hard time going from diagram and explanation to actually trying to find it under the hood. So in the diagram the pink line can go from the vsv to one of the vacuum tees on the driver side as long as the air is flowing away from the vsv. (Hope that makes sense)

[Busted Knuckles]

Here's another thread on heater problems with pics: http://www.toyota-supra.info/forums/...r-problem.html

And a site with detailed pics: toyota Supra pictures heater issue