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We are replacing the heater core in a 2000 GMC Jimmy. All screws have been removed but one. Is there one behing the wheel well?

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  • jjreed Sep 14, 2008

    I am replacing the heater core in a 2001 GMC Jimmy and can not seem to find the last screw to remove the heater core. How do you access the screw behind the fender.

  • Robert Horky Oct 11, 2008

    how many screws in total? and roughly where are the ones not already stated?

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Yes there is one behind the wheel well and there is also one inside the box that you have to remove the blower motor resitor to see.

Posted on Aug 31, 2008

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2 Answers

I need to take the dash out of my 1997 Gmc jimmy to replace the heater core


What is you question pertaining to the heater core..?...You do not have to remove the complete dash...It is on passenger side up under...just remove plastic covers....(small screws,clips) the main thing that holds it is the hose's...But you seem to know ?? What is your question I will be glad to help..................Unless this helps................thanks ............metalpoet

Feb 28, 2011 | GMC Jimmy Cars & Trucks

1 Answer

Replace heater core


Hello,

To replace the core of your GMC 2001 Jimmy, You will be needing these instruments, Repair manual, Socket set, Screwdrivers, once You have them together, please follow the steps below:
  1. Lift up your car's hood and locate the heater core. If you are not sure where the core is located, an auto parts store employee or a repair manual can help.
  2. Remove the screws or bolts that hold the heater core in place. You may need to remove other parts of the car before being able to access the heater core.
  3. Disconnect the intake and outtake hoses from the heater core. You may need a special tool to remove the couplings that connect the hoses to the heater core (refer to your car model's repair manual.)
  4. Remove the heater core. Be careful not to tip the core over, as coolant will leak out.
  5. Reconnect the upstream and downstream hoses on the new heater core in the same matter that they were attached to the faulty core. Leaks can occur if the hoses are not connected properly.
  6. Screw or bolt new heater core in place.
  7. Finally, replace all of the removed car parts.
That is how to replace Your heater core.
Hope this was helpful. Thank You for using FixYa!!!

Jan 12, 2011 | 2001 GMC Jimmy

1 Answer

How do you remove a heater core from a 2000 GMC JImmy


2000 GMC Jimmy heater core replacement in order to replace a heater core in a 2000 gmc jimmy the coolant must be completely drained and the entire dash including radio, vents and panel covers must be removed. four screws hold the top portion(closest to the windshield) in place. they can be found under the windshield defrost vent. after the entire dash is removed a safety harness under the steering column must be removed and the steering column must be dropped to the driver seat. the heater core housing(black plastic) is located right center of the dash and is a two part housing one piece on top of the other. the housing is attached to the fire wall and must detached before replacement can continue. after detaching the housing from the fire wall separate the housing by unscrewing the six screws that hold it together. the heater core is now exposed. disconnect the heater core from the two hoses and discard. installation is the uninstall process in reverse. it is a very long and drawn out process that is not accomplished in just an hour or two . make sure you have most of the day or several afternoons to finish . Good luck and take pictures with your cell phone to use as reference.

Nov 27, 2009 | 2000 GMC Jimmy

2 Answers

How do ypou remove heater core on a 1997 gmc


If yoou are working on a 1997 GMC Jimmy S or T-10 the assembly must come out to access heater box removal to replace heater core.

Aug 23, 2009 | 1997 GMC Jimmy

1 Answer

Heater core replacement


You do not have to do anything with the air conditioning, its all inside car under right side of dash. 1. go under hood and unhook heater hoses and bracket( if equiped) from core tubes. 2. go under dash right side remove 13mm bolt far right under dash thats so you can pull dash out a little ways to get cover off heater where heater core is.3. 1/4 in. socket set and 1/4 in. socket take screws out holding cover on look close there is one hidden top far right can't remember how maney 5 or 6 i think, screws all out use a little finess and remove cover and there will be your heater core. Good luck.

Apr 13, 2009 | 1995 GMC Jimmy

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

3 Answers

2000 GMC Heater Problem


I had problems with a similar truck,a 1998 GMC diesel after checking to make sure the control cables were operating the blend door and blowing the mess of the heater core,I replace the thermostats.Still no heat turns out there was a small amount of debris collecting in the fitting for the inlet hose at the thermostat housing after removing it and blowing out the lines the heat was fine.

Nov 19, 2008 | 2000 GMC Jimmy

1 Answer

2001 GMC Jimmy Heater Core Replacement


back by the exhaust up around the case verry hard to get to good luck jimmy rate as fixya

Sep 15, 2008 | 2001 GMC Jimmy

2 Answers

NEED TO REMOVE DASH TO REPLACE HEATER CORE ON 1995 GMC SONOMA


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.

Aug 01, 2008 | 1997 GMC Jimmy

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