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How to replace heater core in 2002 GMC Yukon

What needs to be removed to expose the heater core?

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: NEED TO REMOVE DASH TO

yes you have to remove the whole dash assambly to replace the heater core..have fun i had to do mine twice.my new heater core lasted about 6 months.

Posted on Mar 30, 2009

  • 102 Answers

SOURCE: Need color codes for radio in 2002 gmc yukon denali

2002 GMC Yukon Car Stereo Wiring Guide
Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: Yellow
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Brown
Car Stereo Dimmer Wire: Gray
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue

Posted on May 24, 2009

  • 14036 Answers

SOURCE: i need to recharge my ac in a 2002 gmc yukon where

your charge port is under hood on the line going to accumulator.look for black or blue cap with the letter L on it.WARNING BESURE TO WEAR SAFETY GLASSES.

Posted on Jul 20, 2009

morse008
  • 1111 Answers

SOURCE: Replacing Heater Core in 2002 Linclon Towncar

follow the two lines leading to it and remove the panel and then the hoses remove the unit and replace as taken apart

Posted on Aug 22, 2009

SOURCE: 99 gmc heater core inlet hose plastic fitting broke

Buy the correct tool

Posted on Sep 28, 2009

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1 Answer

I have a 2002 yokon xl with a 5.3l engnie have coolant comeing from the drive side at the back of the power streeing pumup


Sounds like your heater core might have ruptured. Will need to remove complete dash board to replace this component.

Nov 12, 2016 | 2002 GMC Yukon XL

1 Answer

2002 gmc yukon xl rear heat blows heat front blows cold air


Try to back wash the heater core first if it doesnt work then its clogged up try to turn the heater on the front with the heater off for the back keep an eye on the temp guage if it goes up than normal then its clogged....

Fyi u have to run the engine for awhile with the heater fan on

Feb 28, 2015 | 2002 GMC Yukon XL

1 Answer

Where is the heater core for GMC Yukon XL 1500 and how to removed for replacing


heater core is under the dash in the same enclosure as the interior fan motor. as to remove/replace, I recommend getting a chilton's manual for your vehicle, they have step by step instructions and specifications.

Nov 16, 2014 | GMC Yukon XL Cars & Trucks

1 Answer

Where is the heater core for GMC Yukon XL 1500 and how to removed for replacing


Heater core is under the dash in the same enclosure as the interior fan motor. as to remove/replace, I recommend getting a chilton's manual for your vehicle, they have step by step instructions and specifications.

Nov 16, 2014 | GMC Yukon XL Cars & Trucks

1 Answer

How to replace heater core GMC Yukon xl 1500


Heater core is under the dash in the same enclosure as the interior fan motor. as to remove/replace, I recommend getting a chilton's manual for your vehicle, they have step by step instructions and specifications. Its a great investment if you want to do things yourself, and if it's too complicated it should give you an idea as to what to expect from a mechanic

Nov 16, 2014 | GMC Yukon XL Cars & Trucks

1 Answer

How do you remove the heater core on a 2002 gmc yukon xl 1500 sle?


Check this site out...http://www.tomanual.com/search/2002-gmc-yukon-heater-core-diagram

Sep 01, 2014 | Cars & Trucks

1 Answer

My 1996 GMC Yukon does not have any heat, just blows cold air what could it be


Check coolant level. if ok then see if engine comes up to temp. 190+ at thrmostat housing. If not, replace thermostat. If thermostat is ok, feeel heater hoses. If one is hot , and the other cold, then remove both and flush heater core. If both are hot, suspect blend door problem in heater box. probably need pro help for that.

Dec 18, 2010 | 1996 GMC Yukon

2 Answers

How to replace the heater core in a 1998 gmc Yukon.


Heater Core Removal & Installation To Remove:
  1. Disconnect the negative battery cable.
  2. Drain the coolant from the engine.
  3. Recover the refrigerant.
  4. Remove the glove compartment.
  5. Remove the floor air outlet.
  6. If equipped with a diesel engine, remove the powertrain control module.
  7. Remove the kick panel trim.
  8. Remove the blower motor.
  9. Remove the steering column.
  10. Tilt back the instrument panel assembly.
  11. Remove the coolant recovery reservoir from the engine compartment.
  12. Disconnect the heater hoses and the evaporator tube.
  13. Remove the accumulator.
  14. Remove the fasteners and the HVAC module assembly.
  15. Remove the cover plate on the bottom of the HVAC module.
  16. Remove the heater core and seal from the HVAC module.
HVAC module mounting fastener locations gm-10-00-1003.gif

HVAC module components gm-10-00-1004.gif

To Install:
  1. Install the heater core and seal.
  2. Install the cover plate on the bottom of the evaporator case to the HVAC module.
  3. Install the HVAC module in the vehicle.
  4. Install the accumulator.
  5. Connect the evaporator tube and heater hoses.
  6. Install the coolant recovery reservoir.
  7. Install the instrument panel.
  8. Install the steering column.
  9. Install the blower motor and cover.
  10. Install the kick panel trim.
  11. Install the powertrain control module and tray.
  12. Install the floor air outlet.
  13. Add coolant to the cooling system.
  14. Connect the negative battery cable.
  15. Evacuate and charge the A/C system.
  16. Check the system for leaks.
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Nov 06, 2010 | 1998 GMC Yukon

1 Answer

Found water in under me front passerngers rug


The heater core is located in an area behind the glovebox under the dash. That is where the water is coming from. Your heater core needs to be replaced.

Oct 08, 2009 | 2002 GMC Yukon XL

1 Answer

Antifreeze leak


I assume the vehicle has a heater in the rear. If so, the problem is probably either the heater core leaking, a hose leaking, or a hose connection leaking. If you want to further investigate and possibly fix yourself, let me know.

Apr 22, 2009 | 2002 GMC Yukon XL

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