Question about GMC Jimmy

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I had the heater core replaced at $1048 at Bramlett GMC dealer here in Decatur Al and when it was turned back to me the radio had no lights and the trim around the speedodometer was bent. They wanted $250 more to fix the radio and charged me $94 to fix the trim because they said the security light got hot and melted the trim. Impossible and I'm unable to have an audiance with the owner. Who may I contact withing GMC to ask for help with this? Bill Blackburn 920 Carridale St SW Decatur Al 35601 w4zlu@ charter.net 256 466 5454

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Here is the number for gm in canada they can give you the as no. 1-800-263-3777 ext. 2918

Posted on Jan 26, 2009

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Why did replacing heater core cause electrical issues?


The problem is probably caused by the Body Control Module (BCM) malfunctioning. This module is located under the HVAC assembly (RH side under dash). If your heater core was leaking onto it, or you damaged it during your repair, that could have caused the problems.
Start by disconnecting the battery for a few minutes and then reconnecting it to see if that resets all systems. While the battery is disconnected, you can check the condition of the BCM and the three connectors (make sure they are seated properly and the contacts are not corroded). You should also scan for error codes to see if that sheds light on the problems.

Nov 02, 2015 | 2001 GMC Jimmy

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Our 2004 Mitsubishi Endeavor continues to leak water in the driver's floor board and you hear it splashing in the compartment. We have had it reparied two times. And it works for awhile and then ret


You most likely have a leak in the heater core.
It will have to be removed , repaired or replaced.

Any independent garage can handle the job.

Jun 02, 2014 | 2004 Mitsubishi Endeavor

1 Answer

Traction active, service ride control, service stability, sometimes brake light on dash comes on with or without abs light. also noticed drop in power (max speed 10mph) also noticed air bag lights in...


not that this is going to really help your overall problem but I can tell you that smelling antifreeze in the cabin and if the foormats are wet in the front then it is probably your heater core that has sprung a leak. Think of your heater core as a mini radiator but inside the vehicle and they are usually tucked up inside the dash somewhere and is usually quite expensive to have repaired because of all the labor involved. I just replaced mine in my 2001 Mercury Grand Marquis and it took me about 10 hours to change out. And i am a mechanic.As for your electrical problems I would personally contact the dealership and as them about recalls or technical bulletins concerning your 2003 GMC Yukon xl denali. Good Luck.

Mar 09, 2014 | GMC Yukon XL Cars & Trucks

1 Answer

How can i get to my heater core to replace it on a 86 cadillac fleetwood 5.0


BROUGHAM

1. Disconnect electric-al connectors at blower motor, compressor cycling switch, power

module and radio lead-in connections.

2. Remove righthand windshield washer nozzle.

3. Remove righthand secondary air inlet screen from plenum.

4. Partially remove rubber molding above plenum.

5. Remove remaining screws and the primary inlet screen.

6. Remove blower motor.

7. Remove two screws securing compressor cycling switch to module and position

switch out of way.

8. Remove AC module cover attaching screws and the cover.

9. Disconnect heater hoses at heater core.

10. Remove screw and retainer holding heater core to frame top.

11. With temperature door in max. hot position, reach through temperature housing and

push lower forward comer of heater core away from housing, then rotate core

parallel to housing.

12. Remove heater core.

13. Reverse procedure to install.

Dec 23, 2010 | 1986 Cadillac Fleetwood

2 Answers

We live in a cold climate. Our 1998 GMC Jimmy Heater will not provide cabin heat. The engine warms normally. We replaced the thermostat just to make sure the coolant was warm enough. The blower operates...


UNHOOK BOTH HEATER HOSES AND FLUSH OUT HEATER CORE
DO IT FOWARD AND BACK FLUSH / COVER DIST. CAP OR YOU WILL
FILL IT WITH WATER / IF IT CLEARS OUT HOOK HOSES BACK UP AND
BLEED AIR OUT OF SYSTEM / IF IT DOES'T CLEAR OUT HEATER CORE
WILL NEED TO BE REPLACED (DASH COMES OUT TO DO HEATER CORE)

Dec 08, 2010 | 1998 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

1 Answer

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


In order to replace a heater core in a 1998 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 windsheild) 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 un installation process in reverse.
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 

May 29, 2009 | 1998 GMC Jimmy

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