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Discussion Starter #1
Where is Sal Collaziano ? I can not see any of his posts. Where are they? He seems to have the answers I am looking for regarding my '93 DeVille and the "no heat on the drivers side" problem, but Sal's posts do not show up. Anyone know why a particular person's post will not show up? What was his solution? (i'm not on drugs, Sal's posts really do not show up!)
 

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Either look for Anthony Cipriano or search for the specific problem. The person who you are looking for is no longer on here. His posts are still here however you just have to search a little harder. Also the heat not working on driver's side may be due to the heater core being plugged(I think).
 

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Thank you for the replies.
I have done a search of the issue and decided to flush the heater core and radiator. It seems a tad bit better, but not where I think it should be as of yet. Also, the "three legged Tee" broke a leg when being removed. I replaced it with a generic Tee the does not have any "restrictions" inside. I hope that is not a bad thing, but that is all the part store had.
I am considering the purchase of a new heater core and am hopeful that will solve the problem.

Thanks again for the replies, it is much appreciated.
 

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You'll need the proper tee put back in there, it has a baffle which directs the flow & proper pressure of coolant to the heater core. Without it the system will not work correctly. It is a dealer part, but not terribly expensive. I've replaced two of these (in a 91 and a 95) and I think it was $15-20 each time for the tee.

Do yourself a BIG favor and get the right one put back in, or you will continue to have problems with the heat not working correctly.

KDirk
 

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I am not recommending this as a fix for anyone else but, I replaced a broken tee with one from my local hardware store. I epoxied a metal washer of the same size of the restricion in the broken one inside the new tee. Two years later, no problems. Everything works great.
 

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Discussion Starter #7
Darn, I was hoping that no one would say I must have the proper OEM part.
Oh well, I guess I'll try to find one.
Thanks for the tips and advice.
 

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green1 said:
Thank you for the replies.
Also, the "three legged Tee" broke a leg when being removed. I replaced it with a generic Tee the does not have any "restrictions" inside.
And there in lies your problem.
 

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Discussion Starter #9
Okay. DONE!
Replaced the Tee with a restricted one. It came from the part store ( Advance Auto ) and identically matches the the original, except it's not broken. Cost $9 and change.

Replaced the heater core with an aftermarket one, cost $41 and change.

Replaced the heater core hose clamps with regular old run of mill screw type clamps (already had them). The original clamps took over two hours to remove, due to the space restrictions around them and not having some secret Cadillac-only, factory trained, super mechanic tool or something. (ended up buying 11 inch pliers and a longer screw stick) That's roughly 1 hour per clamp. Rediculous, I know. I have replaced a handful of heater core's in my time, and I NEVER had such an issue with stupid hose clamps. By the time I was done with removing those evil clamps, I was effectionately refering to them as "bastard clamps." I have sternly scolded them and threatened to melt them down to nothing.

I decided to document the process by taking a few pictures of the operation. They don't do my torment justice. Actually, beyond the clamps, it was not that big of deal. But I know I'll never put a clamp like that in a hard to reach spot. Someone should find the engineer that came up with that idea and beat him/her about the head and shoulders.

So, thanks for the tips. I have heat now, or so it seems. It was in the low 70's when I started and upper 60's when I finished. As such, we'll see when Old Man Winter gets here if I have "good" heat or not. I suspect that it will be better than it was at the very least.

Thanks!!
 
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