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Heater core How to fix heater core

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Posted on Jan 03, 2013

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Posted on Jan 02, 2017

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1 Answer

Heater core plugged how do you flush it.


OK START WITH COLD CAR FIND HEATER HOSES (CENTER REAR OF ENG BAY) PINCH OFF HEATER HOSES WITH NIDDLE NOSE VICE GRIPS, REMOVE HEATER HOSE'S FROM HEATER CORE TUBES ( BOTH HOSES) INSTALL WATER HOSE TO ONE SIDE OF HEATER CORE , TURN WATTER ON AND LET IT FLOW 1 MIN. SHOULD DOO THE JOB, IF NOT YOU HAVE OTHER ISSUES.OH REASIMBLE EVERY THING BACK AS IT WAS BEFORE YOU STARTED, TAKE CARE WHEN REMOVING HEATER HOSES FROM HEATER CORE MAY BREAK HEATER CORE IF YOU ARE TOO RUFF,.......

Dec 10, 2011 | 1991 Pontiac Grand Am

3 Answers

Antifreeze leaking on inside passenger side of 1994 GMC suburban


It sounds like you probably have a leak in your heater core. Replacing a heater core can be a difficult job. If you decide want to try it I suggest you get a shop manual to help you out. I can give you a relatively easy temporary fix that will stop the leak until you have more time to fix it or you can take it into a shop to have it done. The down side is this fix will temporally disable your heater. Wait for the engine to cool. Open the engine compartment and look all the way in the back between the engine and the firewall. Find the 2 heater hoses that pass through the firewall. They should be about 1 inch in diameter. Undo the hose clamps and disconnect them from the firewall. Get a short piece of metal tubing about the thickness of the inner diameter of the hoses. Use this metal tubing to connect the heater hoses together and clamp them using the two hose clamps. Now the antifreeze that would normally circulate through your heater core will instead circulate through this loop and not enter the passenger compartment. If you can't find a short piece of metal tubing to do this fix you can completely remove one of the heater hoses. Then take the other heater hose and connect it to location near the engine where you disconnected the first hose. Save the first hose so you can hook it up later when you do the more permanent fix. Make sure to position all hoses such that they aren't resting on any hot surfaces. I hope this advice helps you out.

Feb 20, 2011 | 1994 GMC Suburban

1 Answer

How to remove the heater core


If it is necessary to remove the heater assembly, the cooling system must be drained before removing the heater core.
When a heater core leaks, a new heater core is installed or the old one repaired.
Heater Housing
  • The heater housing is usually under the dash and must be removed to gain access to the heater core.
  • Procedures for replacing the heater core vary with the year, make, and model of car. It threfore necessary to consult the manufacturer's repair manuals for the proper procedure for replacement.
f74-01.gif The heater housing is disassembled to get to the heater core. Heater Core
  • Remove the access panels(s) or the split heater/air conditioning case to gain acess to the heater core.
  • Remove the heater coolant hoses.
  • Remove the cable and/or vacuum control lines (if equipped).
  • Remove the heater core securing brackets and/or clamps.
  • Lift the core from the case. Do not use force. Take care not to damage the fins of the heater core when removing.
  • To reinstall the heater core, reverse the removal steps.
When the heater core leaks and must be repaired or replaced, it is a very difficult and time-consuming job primarily because of the core's location deep within the firewall of the car. For this reason always leak test a replacement heater core before installation.

Dec 24, 2010 | 1993 Honda Accord

3 Answers

Heater core leak hoe do I fix


You will have to remove console, and all the venting and cover to heater core. Then go underneath the vehicle and disconnect both coolant hoses. Then remove heater core. You can go to autozone.com and register for full free online repair manual for your durango with everything you could need.

Dec 09, 2009 | 2000 Dodge Durango

1 Answer

Heater core is clogged, not hot heat coming out.


you can try to flush it out by removing both heater hose going into the core and coming from the core. Hook a garden hose to the hose going in and then try flushing the hose going out. Normally once a heater core is clogged there is only the option of replacing it.

Oct 06, 2009 | 2003 Chevrolet S-10

1 Answer

Have to replace the heater core on a 1997 Pot.


This is a fairly easy fix. Disconnect the heater hoses under the hood. Go to passenger side under the dash remove the lower panel from the dash to access the heater box. Unplug any and all connections on the lower half of the heater box and remove the lower half of the box should be about six screws you should see the heater core and the evaporator core. Heater core skinnier of the two should have one or two straps holding it in remove the straps and remove the core and replace.

Oct 05, 2009 | 1997 Pontiac Sunfire

1 Answer

Coolant leaking on passenger side floor board from heater core.


that means your heater core is bad. It is not hard to fix but it is time consuming. Heater core is located behind glove box

Feb 01, 2009 | 1987 Chevrolet S-10 Pickup

1 Answer

How to fix heater core 1992 dodge spirit


Take my word for it, you don't want to fix it. Take it to your local radiator shop and have someone put a heater core in it for you. You will be way better off. I've done these before and it takes about 6- 8 hrs. The whole dash has to come out. The steering column has to be dropped. If I had one of those cars that needed a heater core, I would take it somewhere and have it done. Phil

Jan 20, 2009 | 1990 Dodge Spirit

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