Where do you find the heater control valve in a 1990 Corsica?
There is not one. The Heater core has Full flow all the time.
Personally I do not know about a G20 1990 Chevy Van but the basics of heating are, the thermostat, heater control valve, heater fan and heater matrix. Does the van overheat at all, engine wise? Could be possible the system just needs a flush out. When you turn the heating dial (presuming it is a dial) you should hear a clunk which normally indicates the heater control valve switching over. Other than that, I've said…
1st, get new valve 2nd, clamp the feed pipes with screwdown pipe clamps (from your friendly halfords) or drain down the system (better) 3rd, undo jubilee clip on hose attached to valve passing thru bulkhead inside the engine bay and remove hose 4th, withdraw valve thru bulkhead and remove jubilee clip on internal hose refitting is reverse of removal good luck david
The heater just quit in my 1990 acura integra It was working fine until recently when it just quit completely Any suggestions?
check your coolant level hopefully you did'nt spring a leak in your heater core is there liquid coming from under your dash? or your carpet wet? if so heater core if not but low on coolant you may have a leak in one of your coolant hose's or maybe your heater control cable broke or you heater control valve is bad check your fuse also its ont he driver side right behind the hood release…
The heater valve is located under the leaf trap. Open the hood, and remove the plastic grille which sits on either side of the windshield wiper. Valve is on the passenger side and has a red vacuum pipe coming out of it. See if it holds vacuum. I have a web page which can help troubleshoot this system: http://cacavas.com/mb/TTM.html Good luck, John Cacavas Los Angeles, California firstname.lastname@example.org