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Other than an actual GM shop manual.....I don't think anyone has an exact diagram of how it goes together. I will tell you this....it's not a simple job. You have to unhook the hoses running to it.....which you have to do in the engine compartment. The heater core is located right in the middle under the dash. You have to take out several small screws to take all the plastic air routing and the heater core cover itself off. You may need to take the console out for room. Once all the screws are out you pop the plastic cover off. You'll see the heater core. Remove two screws that hold the heater core straps and remove it. Reverse the procedure to install.
What else can I help you with?
Will a 1990 or 1992 Chevy cavalier heater core fit in a 1992 grand pr ix?
No it will not
How do you remove and replace a heater core on a 1990 Toyota Celica?
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How to replace a heater core for 1990 GMC suburban?
very carefully
Where is the heater core 1990 cadillac deville how do you replace heater core Layout of heater core?
comes out inside . remove glovebox and go in that way . about one hour .
How do you replace the heater hose from water pump on 1990 durango?
You may want to check your model year. There is no such thing as a 1990 Durango.
How do you replace the heater core in a 1990 Nissan Maxima?
You pretty much have to remove the entire heater box under the dash on the passenger side
How do you replace the heater core on a 1990 Chevy Corsica?
Drain the water from your 1990 Chevy Corsica cooling system. Remove the heater core water supply hoses. Remove the heater core retaining bolts. Reverse the process to install the new heater core.
How do you replace a heater core in a 1990 Mazda Miata?
I've been trying to figure out the same thing.
How to replace a heater core in a Chevy lumina van 1990?
Take out the whole dash and then the heater core should be behind the glove box on the passenger side.
How much approximately to replace a 1990 Honda accord lx heater core parts and labor?
sell the car
On a 1990 Cavalier what is the pipe with a small rubber hose on the end on the passenger side where the AC pipes go into the firewall?
It is a drain tube for the pan housing the heater core. If the heater core leaks it will go out that pipe instead of inside your car.
91 cavalier 3.1?
Are the front driving components(A-arms)from a 1993 Cavalier compatable with a 1990 Cavalier?
