Question about 1998 GMC Jimmy

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How do you repair a heater core in a1998 gmc jimmy

How do you repair a heater core

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You replace them, generally requires getting up underneath the dashboard and sometimes removing the dashboard. You can try one of those radiator leak repair goops which are supposed to fix leaks, but I have yet to see one actually work. You dump these into a warm radiator, they glop around the leak and seal it, according to the packaging. Any car parts store will have a host of these sitting on the shelf.

If the core is leaking you can just disconnect the heater hoses which connect to it and put a piece of tubing between them to maintain flow. About half the Jeeps I have ever seen have this method of repair, but it tends to be a bit cold in the winter.

Posted on Jul 22, 2010

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Posted on Jan 02, 2017

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Heater not working from my 97 GMC jimmy. Change


Do you feel heat on both heater core hoses? If not then it might have a blocked heater core, low coolant level, defective heater control valve or a blend door issue.

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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

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Heater core is shot and needs replaced. 2000 Jimmy. Can't afford $600. repair bill! please help


here is a suggestion--go to any auto parts store and buy a haynes manual for your make and model car. they are based on a complete teardown of vehicle. for only about 20.00, the manual will tell how to remove heater core.

Jan 13, 2010 | 2000 GMC Jimmy

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Replacing the heater core in a 1996 GMC Jimmy how do I remove the dash??????? is there some place online I can find diagrams?


YOU CAN GO TO ANY AUTO PARTS PLACES LIKE AUTO ZONE OR ADVANCE AUTO.BUY A HAYNES REPAIR MANUAL.IT WILL SHOW AND TELL YOU HOW TO REMOVE HEATER CORE.IT WILL MAKE JOB A WHOLE LOT EASIER.AND SAVE YOU TIME.

Nov 10, 2009 | 1996 GMC Jimmy

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My 2001 GMC Jimmy is not blowing warm/hot air. The temperature is slightly elevated but not overheating. When going uphill sometimes will blow warm air but for short period of time. Coolant levels are...


Let the vehicle warm up to normal operating temprature, touch the heater hoses going into the firewall to the heater core, they should both be hot, if only one is hot the heater core is stopped up. If this is the case you will want to try flushing it before you replace it. If you have to replace it be prepaired to spend $400.00 or more depending on shop rates. NOTE: BE CAREFULL WHEN CHECKING HEATER HOSES YOU COULD GET BURNED! Thanks and good luck with your repair.

Nov 06, 2009 | 2001 GMC Jimmy

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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

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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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