Question about 1999 Chevrolet Silverado 1500

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Heater Motor Replacement

I'm looking for the step by step procedure for removing the heater fan motor in my 97 Chevy

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  • jlrich Jan 09, 2009

    If only it was that easy. I know that's what you do once you get to the motor but the dash is in the way. There is i steel bar about 1 inch in diameter that goes from one side of the truck to the other that is in front of the blower. The airbag system appears to be mounted to this bar as well as other parts. Talked with a mechanic the other day and it sounds like the bar has to be unhooked at both ends and the entire dash lifted up. I've pretty much decided to take it to the dealer. I'm replacing it because it's squealing and ticking at low speeds. Thanks anyway.

  • Tom Holmes May 11, 2010

    UNPLUG HEATER AND TAKE THE LITTLE SCREWS THAT HOLD IT IN AND YOUR SURE ITS THE MOTOR NOT THE FUSE OR RESISTOR?

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You can remove it from under hood passenger side firewall unplug motor remove around 6, 5/16 screws remove air hose bottom if it has one pull out replace with new one or oil bearing in old one approx time start to finish 1 hr

Posted on Jan 11, 2009

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How to replace a heater core in a 2000 chevy blazer


Inspect/Replace If it is necessary to remove the heater assembly, the cooling system must be drained before removing the heater core.
When a heater core leaks, a new heater core is installed or the old one repaired.
Heater Housing
  • The heater housing is usually under the dash and must be removed to gain access to the heater core.
  • Procedures for replacing the heater core vary with the year, make, and model of car. It threfore necessary to consult the manufacturer's repair manuals for the proper procedure for replacement.
f74-01.gif The heater housing is disassembled to get to the heater core. Heater Core
  • Remove the access panels(s) or the split heater/air conditioning case to gain acess to the heater core.
  • Remove the heater coolant hoses.
  • Remove the cable and/or vacuum control lines (if equipped).
  • Remove the heater core securing brackets and/or clamps.
  • Lift the core from the case. Do not use force. Take care not to damage the fins of the heater core when removing.
  • To reinstall the heater core, reverse the removal steps.
When the heater core leaks and must be repaired or replaced, it is a very difficult and time-consuming job primarily because of the core's location deep within the firewall of the car. For this reason always leak test a replacement heater core before installation.

Nov 28, 2010 | 2000 Chevrolet Blazer

1 Answer

How to remove the heater blower fan on 92 chevy 1500


Heater Core - REMOVAL & INSTALLATION
1991-92 R/V and 1991-98 C/K Series
  1. Disconnect the negative battery cable.
  2. Drain the cooling system.
  3. Remove the instrument panel glove compartment.
  4. Tag and unplug all electrical leads as necessary.
  5. Remove the center air distribution duct from the floor.
  6. If necessary, remove the ECM and mounting tray.
  7. Remove the hinge pillar trim panels.
  8. Remove the blower motor cover and then remove the motor.
  9. Remove the steering wheel and tilt back the instrument panel slightly.
  10. Remove the coolant overflow tank. Disengage the heater hoses at the core connections.
  11. Unfasten the attaching screws and nut and then remove the heater case.
  12. Remove the seven screws and lift off the heater case cover.
  13. Remove the fasteners and brackets that hold the heater core to the case and lift the core from the case.
To install:
  1. Install the heater core in the case.
  2. Install the heater case bottom plate. Make sure there is a good seal.
  3. Install the heater case into the truck. Tighten the 4 lower screws to 17 inch lbs. (2 Nm); the upper screw to 97 inch lbs. (11 Nm); and the nuts to 25 inch lbs. (2.8 Nm).
  4. Connect the heater hoses at the core tubes.
  5. Install the coolant overflow tank.
  6. Install the instrument panel and the steering wheel.
  7. Install the blower motor and cover.
  8. Install the trim panels and if removed, the ECM. Install the air distribution duct and reconnect all electrical leads.
  9. Install the glove compartment. Fill the cooling system and connect the battery cable.


Blower Motor - REMOVAL & INSTALLATION
1992-98 Models
(see Figure 4)
  1. Disconnect the negative battery cable.
  2. Remove the right rear quarter panel trim.
  3. Disconnect the electrical lead at the fan.
  4. Remove the screws and if equipped, the cooling tube.
  5. If necessary, remove the fan retaining nut and lift out the blower fan.
  6. Remove the blower motor.
To install:
  1. Install the blower motor and then position the fan.
  2. Install the retaining nut and then tighten the mounting screws to 12 inch lbs. (2 Nm).
  3. If removed, install the cooling tube.
  4. Connect the electrical lead. Install the quarter panel trim cover.
  5. Connect the battery cable.
zjlimited_45.jpg

Fig. 4: Auxiliary heating and A/C system





Hope this helps (remember to rate this answer).

Nov 09, 2010 | 1992 Chevrolet C1500

2 Answers

I need to replace the heater fan. How do I do it and where is the fuse located?


Chevrolet pickup trucks utilize an electric heaterfan to push hot air into the cab. Hot engine coolant leaves the engine andflows through a heater hose to the heater core, a small copper brass oraluminum radiator mounted in the vehicle's firewall. The heater fan blows airducted either from the passenger compartment or outside the vehicle, over theheater core's fins, drawing heat off the core. Electric or vacuum-controlleddoors in the interior heating system's ducting controls whether the hot air isblown at the floor, dashboard vents or against the windshield.

Location
? On a Chevy pickup, the heater fan is locatedalong the firewall inside the passenger side fender. Stand in front of thevehicle and look at the air-conditioning condenser mounted on the engine.Follow the hoses that lead back toward the air-conditioning coil. The hoseswill connect to a large fiberglass box bolted to the firewall---this is theheater case. If your vehicle was not originally equipped with air conditioning,follow the heater hoses back to the fiberglass box. The heater fan will bemounted on the left side of the heater case (your left not the vehicle's) justbehind the fender well. Removal
Beginby disconnecting the ground cable from the negative battery terminal. Loosenthe bolt on the clamp and pull the ground cable off the negative batteryterminal. Locate the heater fan and disconnect the positive and negativeelectrical leads. Take notice of which terminal on the electrical motor theblack wire is connected to. Black wiring in automotive applications representnegative or ground. The wires must be installed on the new motor in the sameposition as they were on the old. They will be attached with plastic connectorsthat can simply be pulled off the contacts. The heater fan is bolted to the heatercase with three or four hex head screws. Remove these screws and pull theelectric motor straight out. With the motor removed, you will be able to seethe plastic fan blades mounted on the back side of the motor. Remove theretaining nut that connects the fan blades to the electric motor and pull theblades off. Installation
? Installation is the reverse of removal. Beginby reattaching the fan blade to the electric motor and reinstalling theretaining nut. Then slide the heater fan assembly back into position in theheater case. Reinstall the three to four hex head screws that secure the case.Then reconnect the positive and negative electrical leads, making sure toconnect the black wire to the negative terminal. Finally, reconnect the groundcable to the negative battery terminal.

Read more: Replacing a Chevy Pickup Heater Fan ' eHow.com

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1998 Ford Contour. The heater blower stopped suddenly. I checked all the fuses, good. I removed the blower and hooked it to 12 volts. Whoosh! It almost spun out of my hand. I checked the plug into the...


I dont know what these other guys are saying..I think they snif the glue!!! YOUR BLOWER FAN ASSEMBLY CAN EASILY BE REMOVED !!
1. Remove the wire
2.Find the "tab on the housing and pull it down while rotating the fan housing counter clockwise. This will remove the fan assembly. Plage 12 volts on the contacts to test the motor. If it works then the resister pack is blown. On the fan housing (near firewall ) you will see a plug going into a square looking box with a screw in it. Remove the wire then remove the screw to remove the resistor pack.. A new resistor pack is around 20 dollars at a ford dealer. Hope thie "FREE" info helps!

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1 Answer

How to remove a drivers side window motor for


Hello there:
Here is a link to the removal and installation procedures for the window motor and even the switch ok?
I hope that this is very helpful for you
Best regards michael
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Jul 15, 2009 | 1999 Plymouth Grand Voyager

1 Answer

Changing a heater core


here is a step by step diagram to replace your heater core
Front
  1. Disconnect the negative battery cable.
  2. Drain the cooling system.
  3. Remove the instrument panel glove compartment.
  4. Tag and unplug all electrical leads as necessary.
  5. Remove the center air distribution duct from the floor.
  6. If necessary, remove the ECM and mounting tray.
  7. Remove the hinge pillar trim panels.
  8. Remove the blower motor cover and then remove the motor.
  9. Remove the steering wheel and tilt back the instrument panel slightly.
  10. Remove the coolant overflow tank. Disengage the heater hoses at the core connections.
  11. Unfasten the attaching screws and nut and then remove the heater case.
  12. Remove the seven screws and lift off the heater case cover.
  13. Remove the fasteners and brackets that hold the heater core to the case and lift the core from the case.
To install:
  1. Install the heater core in the case.
  2. Install the heater case bottom plate. Make sure there is a good seal.
  3. Install the heater case into the truck. Tighten the 4 lower screws to 17 inch lbs. (2 Nm); the upper screw to 97 inch lbs. (11 Nm); and the nuts to 25 inch lbs. (2.8 Nm).
  4. Connect the heater hoses at the core tubes.
  5. Install the coolant overflow tank.
  6. Install the instrument panel and the steering wheel.
  7. Install the blower motor and cover.
  8. Install the trim panels and if removed, the ECM. Install the air distribution duct and reconnect all electrical leads.
  9. Install the glove compartment. Fill the cooling system and connect the battery cable.
  1. Disconnect the negative battery cable.
  2. Drain the engine cooling system into a clean container for reuse.
  3. Disconnect the heater hoses from the heater core.
  4. Remove the instrument panel storage compartment.
  5. Disconnect the electrical connectors, as necessary, that may be in the way.
  6. Remove the center floor air distribution duct.
  7. Remove the hinge pillar trim kick panels.
  8. Remove the blower motor cover screws and the cover.
  9. Remove the blower motor screws and the blower motor.
  10. Remove the steering wheel and the steering column (standard & tilt).
  11. Remove the instrument panel fasteners and pull the instrument panel back far enough to gain access to the heater assembly.
  12. While holding the heater assembly against the firewall, remove the screw located on the interior side near the evaporator pipe, if equipped.
  13. In the engine compartment, remove the 4 heater assembly-to-chassis screws and the 2 heater assembly-to-chassis nuts.

    NOTE Removal of the heater assembly may require the help of an assistant.
  14. Remove the 7 heater cover-to-heater assembly screws and the cover.
  15. Remove the heater core from the heater assembly.
    93113g80.gif View of the front heater assembly—Chevy/GMC C/K-Series, Blazer, Jimmy, Sierra, Suburban, Tahoe, Yukon
    Click to Enlarge
    93113g81.gif Location of the front heater assembly-to-chassis fasteners—Chevy/GMC C/K-Series, Blazer, Jimmy, Sierra, Suburban, Tahoe, Yukon
    Click to Enlarge
To install:
  1. Install the heater core to the heater assembly.
  2. Install the heater cover and the 7 heater cover-to-heater assembly screws.

    NOTE Installation of the heater assembly may require the help of an assistant.
  3. In the engine compartment, install the 4 heater assembly-to-chassis screws and the 2 heater assembly-to-chassis nuts. Torque the screws to 17 inch lbs. (1.9 Nm) and the nuts to 25 inch lbs. (2.8 Nm).
  4. While holding the heater assembly against the firewall, install the screw located on the interior side near the evaporator pipe, if equipped. Torque the screw to 97 inch lbs. (11 Nm).
  5. Install the instrument panel and the instrument panel fasteners.
  6. Install the steering column (standard & tilt) and the steering wheel.
  7. Install the blower motor and the blower motor screws.
  8. Install the blower motor the cover and the cover screws.
  9. Install the hinge pillar trim kick panels.
  10. Install the center floor air distribution duct.
  11. Connect the electrical connectors that were disconnected.
  12. Install the instrument panel storage compartment.
  13. Disconnect the heater hoses to the heater core.
  14. Refill the engine cooling system.
  15. Connect the negative battery cable.
  16. Run the engine to normal operating temperatures; then, check the climate control operation and check for leaks.

Dec 31, 2008 | 1994 Chevrolet C1500

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