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Not all models had a heater control valve. If it has one it's either right in front of the firewall by where the heater hoses go in, or else under the dash near the heater core.
Very hard.
i have the same truck, their is no such item availbe for this year the closest one is 1993. if its a heater issue try back flushing the heater core, very very common problem.
Where is the A/C expansion valve on the 1994 Lexus Es300
Near the firewall behind the engine, or under the dash near the heater core.
No, it won't.
The idle air control valve is on the the bottom of the throttle body.
location of the ecu on 1993 Lexus LS400
A water thermostat stuck open. Air in the heater hose lines (caused by low radiator coolant). Air temperature (mechanical) control cable not opening the heater hose water valve (under hood).
The heater valve may not be engaging or the heater core may be blocked.
The Control Module on a 1993 Camaro is just to the left of the valve cover. It is toward the rear of the engine compartment on the passenger side of the engine.
no but it does have a manual hot /cold lever control box which is adjusted via vacume hoses attached to the heater control unit on the dash