Question about 1999 Chevrolet Silverado 1500

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Heater hose broke at firewall/hard plastic coupling/how to remove

Can it be removed easily/plastic cplg. hoses are fine

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  • Gary Loney
    Gary Loney May 11, 2010

    then what's the question?

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  • Chevrolet Master
  • 6,982 Answers

The plastic extension on the core can be removed, only if you take the core out. It's a factory "heat shrink" deal though and I am not aware of any means of putting one back on.(dealer or radiator shop may know) If you try to run a hose directly from it, likely the clamp would get in the way.If it wasn't so hard to get it out, it would be worth experimenting with.
Good luck

Posted on Feb 07, 2009

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Posted on Jan 02, 2017

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One of the heater hoses on my 2004 chevy Avalanche broke off from its connection where it goes through the firewall.


If you google it--- as well as go to You Tube --you can see
info & pic about the plastic connnector, the tool needed
remove hose or what to do when melted or damaged

Dec 16, 2012 | Cars & Trucks

Tip

How To Replace A Heater Core 1995 Olds Aurora


Start inside the vehicle on the drivers side, remove the drivers side bottom dashboard plastic panels, you'll need to pop out the switches on either side of the steering column to access the 10mm bolts that hold the plastic panel, and steel panel under it. Working directly in front of the console above the floor, by the firewall, will be a black plastic cover on top of another black plastic cover. They are held in by 5.5 mm screws. Once both panels are removed, you will finally see the heater core. There are 2 straps that hold the heater core in place. Remove the 5.5 mm screws that hold the straps to the housing. Now, from under the hood, around the center of the firewall, there will be a rectanglar shaped vacuum box mounted on top of a relay bracket, remove to 3 10mm nuts to move vacuum box and relay bracket out of the way to access the heater core hoses. It may help to, from the inside, push the heater core forward thru the firewall, and then from under the hood, cut the aluminum tubes a inch or so from the heater hoses, a long sharp edge flat blade screwdriver might help. You can do this from inside the car, but watch for anti freeze. Remove the hog ring clamps, vice grips might help, in removing them. Use alot of WD-40, by spraying between the hose and the tubing, use a thin screwdriver between the hose and tubing to break the seal of the rubber hose to the tubing. Remove the 2 tubing pieces from the heater hoses. You are ready to reassemble. I'd replace the clamps with some worm gear clamps, alot easier to deal with.

on Mar 07, 2010 | Oldsmobile Aurora Cars & Trucks

1 Answer

I have a 2001 ford expedition my front heater core was leaking so i by-passed it. now its the rear heater core can someone please tell me how to by-pass it to. please


Greetings,
Just remove the heater hoses where they go in to the firewall, and connect them together with a short piece of copper pipe and a couple heater hose clamps. Or, remove the hose that goes from the water pump to the firewall completely, then remove the firewall end of the other hose and connect it directly to the water pump. If the relative sizes of the two heater hoses make this impossible, then revert back to my first suggestion.
For a video showing the basics of replacing heater cores go here.
Thank you for using FixYa.

Sep 20, 2012 | Cars & Trucks

1 Answer

Plastic heater core hose connector broke. How do you replace it?


how to replace heater core connectors ona 2000 2500 gmc serria truck

Mar 27, 2012 | 2000 GMC Sierra

1 Answer

Leaking antifreeze inside car. i want to bypass heater core if could until we can get it fixed. how do i do it?


Trace the 2 water hoses going into the firewall from the engine. Remove 1 and measure the inside diameter, most but not all GM heater hose is 1/2 inch. Go to the hardware store and get a plastic 90 degree plumbing elbow the same size and a couple screw hose clamps. Remove the heater hose from the firewall and connect them to the elbow with the hose clamps. Make sure they can't rub on the exhaust manifold and top up the rad and you are good. Hope this helps.

Jul 13, 2011 | Chevrolet Impala Cars & Trucks

1 Answer

The heater core is leaking and needs to trplaced in our 1997 buick skylark, we need to know how to change it.please send any pictures you may have on how to change it. thaks Dean


I just replaced the heater core on my 1997 Buick Skylark about a year ago after one of the tubes completely came off and leaked all the coolant out. It was a fairly strenuous task because I had to stand on my head under the dash to remove the cover. There were also two screws that were hard to see and get to. I actually broke the cover because I couldn't see the screws (if the cover doesn't come off without much force you have probably missed a screw). The first step is to drain the coolant from your car, if it hasn't already leaked out. Then climb under your car and remove the two hose clamps and hoses from the heater core where the tubes come through the firewall (this is almost directly in the center, side-to-side, of the car). Also while under the car remove the rubber drain boot that is connected to the cover that I mentioned above. Then climb in the car upside down so you can see under the dash. In the center of the car under the dash you will see a plastic air channel that goes down into the floor. Remove the screws from this channel (I can only remember two screws) and disconnect the air hoses at the top on either side. Then the air channel will fold in the middle and should come out pretty easily. Once this is removed the plastic panel that I broke is next to come out. There are at least two screws on each side and two in the center (there may be more than this but is has been too long to remember). The two screws in the center are way down low where the floor board meets the firewall. They are not easy to see or get at but with a little patience you can get them out. Once this cover is off, the heater core is accessible. There may or may not be a couple of screws holding the heater core in place, if there is remove them and pull the heater core out. You will have to pull the tubes through the firewall. The new heater core that I bought was redesigned with metal instead of plastic tubes and looks like a much better design. I had to twist the tubes around to get them to align with the holes in the firewall. Then just reverse these directions to reinstall. Hopefully by now you haven't passed out from all the blood pooling in your head :) Sorry, I don't have any pictures of the process. Hope this helps.

Sep 22, 2010 | 1997 Buick Skylark

1 Answer

Need instuctions on how to replace a heater core on a 97 buick skylark


I just replaced the heater core on my 1997 Buick Skylark about a year ago after one of the tubes completely came off and leaked all the coolant out. It was a fairly strenuous task because I had to stand on my head under the dash to remove the cover. There were also two screws that were hard to see and get to. I actually broke the cover because I couldn't see the screws (if the cover doesn't come off without much force you have probably missed a screw). The first step is to drain the coolant from your car, if it hasn't already leaked out. Then climb under your car and remove the two hose clamps and hoses from the heater core where the tubes come through the firewall (this is almost directly in the center, side-to-side, of the car). Also while under the car remove the rubber drain boot that is connected to the cover that I mentioned above. Then climb in the car upside down so you can see under the dash. In the center of the car under the dash you will see a plastic air channel that goes down into the floor. Remove the screws from this channel (I can only remember two screws) and disconnect the air hoses at the top on either side. Then the air channel will fold in the middle and should come out pretty easily. Once this is removed the plastic panel that I broke is next to come out. There are at least two screws on each side and two in the center (there may be more than this but is has been too long to remember). The two screws in the center are way down low where the floor board meets the firewall. They are not easy to see or get at but with a little patience you can get them out. Once this cover is off, the heater core is accessible. There may or may not be a couple of screws holding the heater core in place, if there is remove them and pull the heater core out. You will have to pull the tubes through the firewall. The new heater core that I bought was redesigned with metal instead of plastic tubes and looks like a much better design. I had to twist the tubes around to get them to align with the holes in the firewall. Then just reverse these directions to reinstall. Hopefully by now you haven't passed out from all the blood pooling in your head :) Sorry, I don't have any pictures of the process. Hope this helps.

Oct 07, 2009 | 1997 Buick Skylark

1 Answer

Heater hose broke


there should be two bolts on the inside holding it into place or it could be your heater core that they belong to . I have seen them bolted to the inner fire wall .

Feb 02, 2009 | 1999 Chevrolet Silverado 1500

1 Answer

2000 gmc sierra


ur gonna have to tear the dash apart to get to the heater core, once u access that u can take the pastic housing off and reconnect the hoses

Oct 26, 2008 | 2000 GMC Sierra

2 Answers

Antifreeze leaking on firewall out of rubber elbow?


I had the same problem and it is the heater core. Hope the info below helps.

The heater core is inside the firewall under the center of the dash. It requires removing the center console to reach the plenum cover.

Drain the coolant. Be Prepared for a few skinned nuckels. First dissconnect your battery You will be working around wiring harness' so just tobe on the safe side I would disconnect the battery.The easy part is removing both glove boxes, remove the console remove the covers under the steering wheel remove the cover surrounding the the radio and heater controls, now remove the first plastic cover it will have two ports going into the center console, you might have pull back the carpet on both sides to get it out. After you remove that cover you have to remove the next cover that hides the heater core. When that is removed you should see the heater core there are four bolts two top two bottom holding silver bands remove these and the heater core will be loose. When removing everything make sure you get all the screws I missed two hidden screws and broke the cover. Some are torx some are nut heads.Now that is the easy part the hard part is removing the heater hoses from the back fo the engine. If the You are sure the heater core is shot usually coolant on the carpet is a good indicator just snap the two plastic pipes going to the heater core. This will make it easier to access the hoses. There is no easy way to remove these is is a matter of determination and patience. I would never change a heater core without changing the hosesyou will see that it will be worth new hoses because you will not want to repeat this procedure again.

Jul 21, 2008 | 1993 Pontiac Grand Am

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