I have a leak in my heater core and coolant running onto the passenger side floor. The Chilton manual I have does not have enough detail to guide me. I have started removing the dash and hit a wall. I have removed the pad, speakers, all bolts (I think), intrument cluster, and console. The dash appears to move freely but I cannot remove it. Do I need to drop the steering column, remove wiring harness, etc.? Any help on what the last steps are would be greatly appreciated.
By the way, it didn't appear that I could access the core from under the hood, so I assumed my only option was remove the dash.
Thanks in advance for any help.
You do not have to remove any part of the dash at all! All you have to do is use a socket wrench from the front of the box with an extension over the top of the box. There is even a dip in the box at this point that may have been designed to make it more accessable. I have a 1988 Camaro and removed this impossible to reach 5th bolt by using a 9/32 socket and an extension or two to get the right lengths and a universal joint for easy manouvering. My son helped by holding the socket on the bolt while I did the unscrewing. It helps to have a good variety of socket wrench extensions and a universal joint and a skinny arm to get behind the box. The fifth bolt is about 3" in from the upper right bolt. Same size bolt as the other 4.
I have the speaker taken out and the bolts undernieth removed and the heater core is visible but it seems to be placed right behind my stereo/A/C.... and is impossible to get at... do you think i should just take everything out?.... stereo, steering column and all?....
On my 88 I did not have to remove the dash!! You can access all bolts from floor board on passenger side to get the box of the heater core. The only problem is the one bolt at the top of the box. you could either remove the speaker and get to it that way, or you just have to reach up under and around the box to feel for the bolt. Luckily, mine was already removed. hope this helps
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Sounds like the heater core is leaking. The heater core is located inside the vehicle, usually contained within a plastic box, when the heater core leaks enough, the plastic box will fill up with coolant and eventually leak out, usually onto the passenger side floor. Hope this helps.
Two hoses will run into your passenger side firewall area under the hood. Probably within inches of eachother. They will have hose clamps or clips of some sort. They will be about an inch and a half in diameter. Pull them off and prestone or water should come out of both. Hook them together. Heater core looks like a very small radiator. With an inlet and outlet. Made of brass or something similar. Sits in your heater duct after the blower moter.
If leaking coolant under dash on passenger side floor broad it's your heater core. Call's for 2.8 labor flat time to remove heater core, in some case's you'll have to recover, evacuate and recharge your A/C system to remove your heater core.Sit under dash on passenger side.
drain out your fluid
2.near the fire wall in engine, loosen clamps and remove heater hoses from th tubes running to the core.
3. remove dash panel on inside of car(passenger side)
4. remove the duct/vent from core.
5. remove cover(screwsand clips)
6. remove core retaining straps and pull out core.
installion is reverse and watch you dont loose too much coolant on your floor. Replace and fill coolant. run your heater to make sure you have no leaks
yes the heater core is located on the passenger side of the center console of the inside of the car,there is a panel there remove it and you will see 2 silver aluminum lines coming in from the firewall that go into the black box inside the dash the heater core is in there,,,there is 1 phillips screw and 2 slip fittings, and when you slide the heater core out your gonna leak alot of coolant onto the passenger side floor,drain the coolant,but your still gonna leak some in,,,,easy to swap,just take your time and youll be ok,,juswt make sure you clip the clips onto the lines all the way or they will pop off and leak alot,,,lube the new orings with like wd40 or something,,
Removal & Installation
1.Disconnect negative battery cable. Drain cooling system. Disconnect
heater hoses from heater core, and plug openings. Detach hood release
cable. Remove both dash side panels. Remove left and right lower dash
trim panels. Remove glove box. Remove 7 screws securing center
accessory console. Disconnect wires on accessory console, and remove
accessory console. Remove control cables at heater case.
2.Remove 4 bolts securing steering column to instrument panel. Lower
steering column. Remove 2 bolts from instrument panel mounts at far
left and right sides of instrument panel. Remove defroster duct trim on
top of dash. Remove instrument cluster screws. Pull instrument cluster
out slightly. Disconnect electrical connections and speedometer cable
from instrument cluster. Remove instrument cluster.
3.Disconnect all electrical connectors from instrument panel. Remove
parking brake console. Remove glove box. Remove bolts securing
instrument panel support to floorpan. Remove all instrument panel
mounting bolts. Remove instrument panel.
4.Separate heater case from blower. Remove 3 nuts and pull heater
Hey mad40bx that will be your heater core,,just pick up a new one and grab a haynes or chilton manual for your truck if you are not familiar with the procedure its not that bad, if you dont need it fixed immediately take the 2 hoses off from the firewall (One is supply and one return) and couple them together this will bypass the heater core until you are ready to fix it, good luck