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Heater core replacement instructions.

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  #11  
Old 11-24-2010, 09:05 AM
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Originally Posted by working4ev
Now the fun part getting the new one in. This not an easy task I must say. But if you move the two tubes in just the right spot you can slide it in. Don't be afraid to tweak the core / tubes you can straighten every thing out once you get the core in the heater box.
http://img.photobucket.com/albums/v132/Kashegurl/12.jpg
http://img.photobucket.com/albums/v132/Kashegurl/11.jpg
http://img.photobucket.com/albums/v132/Kashegurl/10.jpg
That's my concern, not bending the new heater core tubes, or where it connects to the core itself, as I was worried that it might break. I guess if it breaks somewhere along the tube, no big deal. But if it crackes right where it mates up to the heater core, it'll be ruined.

Hopefully I can get this finished up this weekend.
 
  #12  
Old 11-24-2010, 12:55 PM
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Sorry I did not get pictures of as it was going it But both hands were full.

Something to try grab the metal strap on the dash it is behind the second hole from the end on the passengers side. Now pull out because you are pulling on the metal strap it should not hurt the dash.

That strap is what is preventing the core from just dropping in.
 
  #13  
Old 11-24-2010, 01:38 PM
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I'm glad it worked for you also.. so much easier..but not for the faint of heart..cause yes you do need to tweak a lil on core.. but nothing that hurts it..and was I wrong?? about how long it takes .. took ya about 2 hours from start to finish?

Originally Posted by working4ev
My friend thank you for this. I knew there was a way around the A/C discharging.

I have to give something back so here you go a picture is worth a thousand words.

After pulling the dash back remove the glove box, looking throw you can see the core.
http://img.photobucket.com/albums/v1...hegurl/2-6.jpg

You need to work throw the glove box and the passenger side Aperale hole
http://img.photobucket.com/albums/v1...egurl/1-26.jpg

Looking throw the passenger side dash.
http://img.photobucket.com/albums/v1...hegurl/7-1.jpg

Now cut the two pipes off how ever you can I used a cut off saw.
http://img.photobucket.com/albums/v1...hegurl/5-2.jpg

The core will now pull out with a little wiggling and pulling.
http://img.photobucket.com/albums/v132/Kashegurl/8.jpg


Now the fun part getting the new one in. This not an easy task I must say. But if you move the two tubes in just the right spot you can slide it in. Don't be afraid to tweak the core / tubes you can straighten every thing out once you get the core in the heater box.
http://img.photobucket.com/albums/v132/Kashegurl/12.jpg
http://img.photobucket.com/albums/v132/Kashegurl/11.jpg
http://img.photobucket.com/albums/v132/Kashegurl/10.jpg


FYI this is the shifter cable you need to remove.
http://img.photobucket.com/albums/v132/Kashegurl/13.jpg


This is what my heater core looked like "I thing I should have done this 2 years ago"
http://img.photobucket.com/albums/v1...hegurl/4-2.jpg
http://img.photobucket.com/albums/v1...hegurl/3-2.jpg


I hope this somehow gets to the DIY section I have found this way a lot easier and you do not need to mess with the A/C freon.
 

Last edited by Baddnet; 11-24-2010 at 04:55 PM.
  #14  
Old 11-24-2010, 04:40 PM
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Will about 2 hours I had to stop and tack pictures. But I must say vary easy repair. I bet this is how the steelership dose it, Then bill you for 8 book hours.

Again thank you Baddnet I hope I made it a little easier for others with the pictures.

Took the truck for a drive to day man o man the heater gets hot now
 
  #15  
Old 11-25-2010, 02:02 PM
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Ok, it's in. Just had to bend the core tubes a bit to make it fit. Before I was just worried I would crack the solder joints, but it seems to be alright.

Thanks all. Now if I can just get my dash put back together.......
 
  #16  
Old 11-25-2010, 05:57 PM
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How did you get to the little screw holding the tubes down against the firewall? Not the one that has the ground strap. I mean, there was no way to pull the tubes out with that clamped down on the tubes. This was on my buddies 98.
 
  #17  
Old 11-25-2010, 07:39 PM
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Well it's back together.... mostly. Got everything plugged in, and the dash back up in place with the bolts in the sides and two screws top in place, so it's in position.

Now the issue..... the heat/air only blows through the defrost vents by the windshield. I know the control is connected, as it turns it on and off. But it doesn't seem to have any effect on where the air comes out. I thought at first maybe the dash just wasn't pushed up far enough to connect with the airbox, but it's there.

Also usually you hear a noise when switching vent controls from the servo motors or vent doors closing. Can't hear anything.

Well it's dark now, so I guess I'll pull the dash back off tomorrow, and see if somethings not connected right.

Looking on the positive side, I suppose if you had to pick only one vent for the heat to blow out of, the defrost would be it.
 
  #18  
Old 11-25-2010, 07:41 PM
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Originally Posted by forAk
How did you get to the little screw holding the tubes down against the firewall? Not the one that has the ground strap. I mean, there was no way to pull the tubes out with that clamped down on the tubes. This was on my buddies 98.
I had a small short screwdriver.
 
  #19  
Old 11-25-2010, 11:03 PM
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Originally Posted by Dodge33
Well it's back together.... mostly. Got everything plugged in, and the dash back up in place with the bolts in the sides and two screws top in place, so it's in position.

Now the issue..... the heat/air only blows through the defrost vents by the windshield. I know the control is connected, as it turns it on and off. But it doesn't seem to have any effect on where the air comes out. I thought at first maybe the dash just wasn't pushed up far enough to connect with the airbox, but it's there.

Also usually you hear a noise when switching vent controls from the servo motors or vent doors closing. Can't hear anything.

Well it's dark now, so I guess I'll pull the dash back off tomorrow, and see if somethings not connected right.

Looking on the positive side, I suppose if you had to pick only one vent for the heat to blow out of, the defrost would be it.
Most likely left a vacuum line off or broke one. Make sure the vacuum line is intact and connected that runs through the firewall to the engine. Also, on mine I had to disconnect a juncion block of vacuum lines behind the dash. Make sure its back together if the first line mentioned is ok.
 
  #20  
Old 11-26-2010, 12:02 PM
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Lol, yeah forgot to reconnect the vacuum line cluster plug under the dash. I remember looking at yesterday wondering what it was. Reconnected and vents operate normally. Now to proceed with the rest of reassembly.

Speaking of vacuum leaks, I have the switch to defrost on acceleration issue as well which apparently is typically indicative of bad check valve in the engine compartment.
 

Last edited by Dodge33; 11-26-2010 at 12:04 PM.


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