Question about 1999 GMC Sierra
Heater motor is located in the cab on the passenger side. How do i get the motor cover off
Pull the bolts of and pull it out as hard as you can with your hands
Posted on Jan 14, 2013
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Posted on Jan 02, 2017
Check the water control valve behind the engine close to the firewall. This valve opens and closes to allow hot coolant to enter the heater core. It is usually connected to the heater controls with a cable. When you adjust the heater control for heat, a cable activated lever on the valve should move and allow coolant to move through the valve. The cable from the heater control can come loose from the lever, or the valve itself can become corroded and hard to move.
Posted on Oct 16, 2009
No biggy.The seat heater can be repaired by the dealership.Should not cost much because there are no parts just a reprogram of the drivers seat module.The blower motor is the blower motor resistor module.It is on the passengers side under the dash next to the blower motor.You should be able to do this yourself if you have a little mechanical experience.Hope this helps.Good luck.
Posted on Jan 29, 2010
Tips for a great answer:
Feb 14, 2014 | 1996 Ford F350 Crew Cab
Jan 13, 2012 | 1994 Ford F250 Supercab
heater core transfers heat from a 1994 Ford Ranger's engine to the
passenger compartment by running hot radiator coolant through a
serpentine of tubing. Air blows past the hot fins of the heater core
and into the truck cab.
The hoses running to and from the heater core must be removed from the engine compartment, but the core itself is accessed from inside the passenger compartment, on the driver's side next to the center console.
1. Turn off the engine, open the hood and remove the battery cable from the negative terminal. Make sure the engine is cool.
Attach a 3/8-inch interior diameter hose to the drain outlet on the
bottom rear corner of the radiator on the driver's side, and place
the bottom end in a resealable plastic container. Turn the drain
valve (located above the drain outlet) counterclockwise with a pair
of pliers. Drain the engine coolant into the resealable container,
then close the valve by turning it clockwise. Remove the hose from
Loosen the hose clamps on the radiator hoses where they attach to
the heater core on the firewall. Remove the hoses.
Unscrew the screws holding the underdash cover in place on the
driver's side of the passenger compartment. Remove the underdash
Unscrew the four screws on the cylindrical heater core access cover
and remove it. Remove the heater core by pulling it down and toward
the rear of the vehicle.
Replace the unit with a new heater core.
Reinstall the heater core access cover and screw in the retaining
screws. Replace the underdash cover and screw it into place.
Replace the radiator hoses on the heater core in the engine
compartment. Tighten the hose clamps. Add coolant until the level is
between the minimum and maximum marks on the reservoir.
Replace the battery cable and start the engine. Check the system for
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