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You are watching: 1996 cadillac deville heater core replacement

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Re: heater main point replacemantProcedure to change a heater main point in a 96DeVille:1) eliminate the an unfavorable terminal on the battery. You"re going to be working around the passanger airbag and also pulling electric connectors of the A/C Programer. Good idea to death the power.2) open up glove box and also observe the accessibility door in the rear. You room going to open up this. Offer a an excellent tug ~ above the left finish of the door and also pull right in. Provide it a great one, it will pop open. Un-clip the airbag connector that"s clipped in place.3) remove the glove box. 6 torque screws hold the glove box in place. 4 on the former and two top top the gloves box floor. If friend don"t have ideal torque journey a hex drive will work . Don"t worry about the electricl wires plgged right into the left finish of the box. Pull right out and also then rotate the assembly off to the left the end of the method - no must unhook all the stuff and also tempt Murphy.Nice point is that you will be functioning though this opening and also not was standing on your head under the dash, many of the time!4) Under the dash panel is a black plastic sound dashboard that needs to it is in removed. Its hosted in place by 3 7mm screw nuts along the close to edge. Remove these and also the panel will certainly drop down and also pull out. If her old main point sprung a leak this caught some of the coolant - take care and also wash the foam top top the behind of the panel. Hot water and also soap in the kitchen sink will do.5) You are going to want to defend the left front fender when you effort pulling and installing the heater hoses. Once done, traction the heater hoses top top the engine next of the fire wall. This is a ache in the there"s hardly enough room and it is a two handed operation. Take treatment not to damage the hoses - brand-new sets space dear. Additionally watch out for every those vacume lines and also electric lines that are ideal there crowded in and around. Save in mind you are going to hook these as much as the new core. That will prove more difficult.6) back inside the cabin take it a look inside the glove box opening. Tucked away earlier to the ideal of things, method up there, girlfriend will view a silver- box v colored vacume currently attached to its bracket. This is the A/C Programer. Look at closely and you will check out a solitary screw nut on the right end of the bracket. This is what you must remove. Take care and do not drop that screw nut. You will certainly never uncover it and also will need to replace or, as I did, improvise to gain it back together.With the screw nut removed the entirety A/C Programer unit wil be totally free and girlfriend will be able to wiggle it out and down. Move connectors together needed and also take care with those vacume lines. Carry out not shot to traction these. Don"t want to think about trying to change that stuff and also remember Murphy. With the unit under flip it and pull the electric connectors off the progamers bottom edge. Castle release v a clip link on the back side - pinch and pull.Object here is to make room come the right side the that black plastic box you"re seeing. This is the heater box.7) look at on peak of the heater box. Girlfriend will see a manage rod. Un-clip this top top the appropriate side, wherein it clips top top a white plastic control piece. All you require is a driver under the pole on the ideal end and twist to pop it the end of its groved retainer.8) The heater box is break-up vertically in that is center and is organized together by 2 screw nuts. One you can see through looking v the glove box opening, the various other is around six inches listed below it. Remove these and open the heater crate to the ideal to expose the heater core.9) The main point is organized in ar by an end bracket secured by two screw nuts. Eliminate this bracket and give the main point a great wiggle and pull that out and down into the cabin as best you can. You space pulling the hose stubs with the fire wall and it will come out.10) The replacement core need to come with a new bracket and air seals. Looking within the box, wherein the core was you will see four strips that foam neighboring the opening. These must be replaced. It"s tight in there, however take her time.11) download the brand-new core once the waiting seals are replaced and secure it v the brand-new bracket. Then go out and also hook up those heater hoses. You are going to be pushing and also twisting, however get castle home and tighten the clamps well. Through this done go back inside and also give the core a good push in the direction of the firewall. Recheck the bracket. The core have to be in there firm together a rock.12) all that"s left is to put things earlier together in turning back of acquisition it apart.Not poor "eh? book says two hour job, great luck.

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I"ve enclosed a pic showing just how my core failed. No what i expected.