answersLogoWhite
Chevy Suburban
Heater Cores and Blower Fans
Chevy Blazer S-10

How do you change a heater core on a 1990 suburban with air-conditioning?

323334

Top Answer
User Avatar
Wiki User
Answered
2006-07-04 19:02:17
2006-07-04 19:02:17

The heater core is located under the dash against the firewall on the passenger side. You'll need to remove whatever is necessary to access this area. Once you're back there, you can remove the vent box assembly, which houses the heater core. Replace your core and reassemble the vent box. Reinstall the box under the dash and reassemble whatever else you had to remove to access it. Also, you'll have to remember, before you start this, to disconnect the heater hoses from the core on the engine side of the firewall. Be prepared to catch some cooling fluids leaking out of the hoses when disconnected. BEWARE! Ethylene glycol (anti-freeze) is poison to pets and other small animals. Don't let it drain to the ground without washing (diluting) it away with fresh water. Note: This is not an easy job. I would rate it at about a 4 on a scale of 1-10, most difficult being a 10. Luck!

001
๐Ÿฆƒ
0
๐Ÿคจ
0
๐Ÿ˜ฎ
0
๐Ÿ˜‚
0

Related Questions


how do i change the heater core in a 1990 Eddie Bauer


About 15 mpg on a 1990 Chevrolet suburban.


1990 Chevrolet suburban gets about 15 mpg.


It CAN'T be done.. Due to the design of the axel shaft and hub.


Yes it will, I own a 1990 GMC Suburban 2500 (3/4 ton) and it came from the factory with a 454 motor.


BIG JOB Get a manual on your car from the parts store and it wil have pictures .




In order to change the heater core on an 90 ls400 you have to remove the entire dash pad and cross bar to be able to remove the heater core box. This is a job for and experienced LEXUS technician www.lextechautomotivellc.com


This process could take up to 3 hours. The Heater core is best flushed if you are having problems with flow. Is this an option? F. Garay


That job is known to be a scourge among mechanics. Pay someone to do it, trust me.



Remove the water supply lines from your 1990 Ford E3 50 heater core. Remove the heater core retaining bolts. Reverse the process to install your new heater core.


Fuse for headlights 1990 Chevrolet suburban is located on the driver's side dash on left right behind the fuse panel. It is just above the parking brake.


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.


you dont!you just connect both the hoses together.and wear a gloves hat and a heavy jacket!



Could be a bad thermostat or heater core


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



The heater core is inside the Hvac housing, under the dash.


no considering the front is more boxy and wider in the front. the 1990 bumper is rounded to fit the 88-98 pickups , the suburban kept the box style until 1991. your best bet would be to find a 1973-1987 silverado,custom deluxe,cheyenne, or bonanza bumper or a suburban bumper from a 1973-1991 suburban


Pretty difficult you will more than likely take have to take the whole dash out... It will be an all day job


It should work assuming the leak isn't too big. Try it you have nothing to loose.


try changing out the heater core or the therma stat may be bad



Copyright ยฉ 2020 Multiply Media, LLC. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply.