Question about 2001 GMC Jimmy

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2001 GMC Jimmy Heater Core Replacement

I am replacing the heater core and can not find how to access the last screw holding the heating/venting unit to the fire wall. I have removed the one left of the coolant lines and the screw located under the blower moter resistor. The last is on the bottom right of the unit, but I can not find it on the motor side of the firewall. Can anyone explain the way to access this.

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

Posted on Sep 25, 2008

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Heater core replacement 98 chevy S10 2.2L engine


Tyrone, Check the attached links,instruction and guides, the last link has some very good info. and pics. on S10 heater core replacement. Good luck.
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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

Heater core replacement


Heater Core Removal & Installation To Remove:
Heater core removal gm-10-00-651.gif

  1. Remove the heater/vent module.
  2. Remove the heater core access cover screws.
  3. Remove the heater core access cover.
  4. Remove the heater core from the heater/vent module
To Install:
  1. Install the heater core to the heater/vent module.
  2. Install the heater core access cover and screws to the heater/vent module.
  3. Install the heater/vent module assembly to the vehicle.
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How do you remove a heater core from a 2000 GMC JImmy


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Got heater core need to put it in,want to now how to do it the right and fastest way


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Good luck, 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 . i started this and it took me 2 afternoons to take apart and put back together 

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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.

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3 Answers

Replacment of heater core on 01 chevy S-10


Have replaced my heater core in my 2001 regular cab 4wd in december 2009. Had to pull the complete dash including the complete metal dash behind the dash that you see. Also had to remove the right passenger side inner fender well to acess the remaining two bolts that hold the heater core cover to the firewall. Its an insane job to do but the repair shop books call for 9 1/2 hrs to do the job. I'm not an expert but this is what it takes.

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