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There isn't a "heater valve" per se on the 88-98 model. The heater core is an active unit in that it has coolant flowing constantly when the engine is running. What GM did is put in a door that allows outside air in across the core into the cab. The acutator for this door is located behind the dash a little to the left and below the glove box. You can gain access to it by removing the handful of screws holding the glove box liner in. Watch the movement of the actuator when you adjust the temperature. If it does not move, it needs to be replaced. Most parts stores either carry or can get one.
What else can I help you with?
Does 1994 Chevy s10 pick up have fuel pressure relief valve?
The 1994 S10 has a fuel pressure regulator located in the throttle body.
How do you install a heater core on a 1982 Chevy pick-up?
same procedure as yesterday
How do you install a heater switch in a 1992 Chevy pick up?
I have a very big sausage
1994 Chevy pick up 4.3 engine shuts off then starts back up?
Check the idle air control valve. This is a problem with lot's of older gm cars.
Can you swap a Chevy 350 into a 1994 toyta pick up?
Yes.
How DO YOU loosen bleeder valve on a Chevrolet s-10 pick-up?
You loosen the bleeder valve on a Chevy S-10 pick-up by placing a 7/16 inch wrench over the valve. It is gently turned counter-clockwise to open the valve.
Where is PCV valve for 94 Nissan pickup truck?
where is the pcv valve located 1994 nissan pick up 4wd 2.4l
What is the fuel pressure on 1994 Chevy 350 pick up?
41 to 47 psi.
A Diagram of a 1990 Toyota Pickup heater plenum?
Where is the plenum bolt for a 1994 toyota pick-up
Is there a diagram showing where a PCV valve is located on a Chevy s-10 pick up?
1998 and newer 2.2L engine does not have a serviceable pcv valve.
What is the fuel pump pressure for 1994 Chevy s10 pick up?
41 to 47 psi.
Will a 350 motor out of a 1993 Chevy 1500 pick up fit into a 1994 Chevy Cheyenne that had a 5.0?
YES, they are basically the same engines.
