Best Answer

it is located under the dash in the middle right on top of the frame or trany hump there is a black case on the outside with if I rember right 4 screws holding on to the heater core case them the should be 4 to 6 screws to take the 2nd plate off at theis point if you hace big hands or larger arms call closest friend cheapest help to crawl under car and take of the spring hose clamps or possably hose clamps befor you start all this you should have drained the coolant take both hoses loose the go back to under the dash and there should be 2 core brackets holding the heater core in eith 4 screws try to rember which way it came out to you can get the new one back in put back together in oppsite order make sure you use new heater core hose clamps

User Avatar

Wiki User

โˆ™ 2015-07-15 20:59:18
This answer is:
User Avatar
User Avatar

Bobby Kines

Lvl 1
โˆ™ 2021-03-12 16:41:31
I have taken ever screw I can see but cover will not move
Study guides
See all Study Guides
Create a Study Guide

Add your answer:

Earn +20 pts
Q: How do you replace a heater core in a 1990 Chevrolet Corsica?
Write your answer...
Related questions

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 the water pump on a 1990 Chevy Corsica 2.2L?

Where is the Water Pump located and how do you replace it on a 1990 Chevy Corsica?

Where do you find the heater control valve in a 1990 Corsica?

There is not one. The Heater core has Full flow all the time.

Are the windshields interchangeable on the 1987 through 1990 Chevrolet Corsica's?

yes from 1987 to 1990 this windshield is a dw1015 part #

Where is the TCC solenoid located on a 1990 Chevy Corsica 3.1 engine transmission?

The 1990 Chevrolet Corsica TCC transmission solenoid is located on the top of the transmission. The solenoid will be near the back of the transmission.

How do you replace the ignition switch in a 1990 Chevrolet Corsica with tilt wheel?

The switch is on the steering column about 18 inches from the floor. Simply take 2 screws holding it on and replace it.The locck cylinder is under the steering wheel.

How do you remove and replace a heater core on a 1990 Toyota Celica?

== ==

How do you replace heater core 1990 suburban?

very carefully

Beplace heater blower 1990 Chevrolet celebrity?

To replace the heater blower motor: First unplug the wire connectors. Then remove the screws and the motor will pull out. Reverse the process to reinstall the blower motor.

How big is the gas tank on a 1990 Chevy Corsica?

The gas tank on a 1990 Chevy Corsica is 15.6 gallons. A 1990 Chevy Corsica takes unleaded gas not premium.

How to replace a heater core for 1990 GMC suburban?

very carefully

How do you replace the fuel pump in a 1990 Chevrolet lumina?

Drop fuel tank

How do you change a fuel pump in an 1990 Chevy Corsica?

You must drop the fuel tank in order to replace the fuel pump.

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 many quarts of transmission fluid fills a 1990 Chevrolet Corsica transmission? says it holds 2 quarts. says it holds 2 quarts.

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

Why would the headlights not work on a 1990 Chevrolet Corsica if the running lights work and the light switch is good?

It can be the dimmer switch. It needs to be checked out./ A test light will check for voltage.

1990 Chevrolet Corsica LTZ 301 ci v6 trouble starting and sputters while driving 5 to 10 miles?

Common problem with this engine is the ignition coils.

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.

Average mpg 1990 Chevrolet suburban?

About 15 mpg on a 1990 Chevrolet suburban.

How do you find new cruise control buttons to replace broken ones on the steering wheel for a 1990 Corsica?

Any auto junkyard should be able to help you.

How much approximately to replace a 1990 Honda accord lx heater core parts and labor?

sell the car

Where is the fuel filter located on a 1990 Chevrolet Blazer?

Where is the fuel filter located on a 1990 chevrolet blazer?