How do you change a heater core on a 1990 suburban with air-conditioning?
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!
Why does the front ac in your 1990 suburban blow cold but the back blows hot?
It is possible that the rear A/C lines have been cut and sealed so the freon stays in the front but does not go to the rear A/C. That is the case on my Sububan Answer The suburban may have a heater core in the rear blower that is not shutting off. AC cannot blow hot, there is a coil for the AC and a separate coil for the heater. A simple fix is to…
How do you bleed the brakes on a 1990 Chevy Suburban?
You will need the following tools: · Box-end wrench suitable for your car's bleeder screws. An offset head design usually works best. · Extra brake fluid (about 1 pint if you are just bleeding, about 3 if you are completely replacing). · 12-inch long section of clear plastic tubing, ID sized to fit snugly over your car's bleeder screws. · Disposable bottle for waste fluid. · One can of brake cleaner. · One assistant (to…
Will 1990 silverado 1500 front bumper fit a 1989 Chevrolet Suburban?
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
How do you change the heater core on a 1990 Chevy Silverado?
Step 1: Disconnect heater hoses from under the hood Step 2: Remove the (6) 9/32" screws securing the heater box cover to the bottom of the heater box. Note: (2) of them are hidden so make sure you get them all. Step 3: Remove the heater box cover. Step 4: Locate the (1) 9/32" screw that holds the heater core to the housing. Step 5: Gently pull the heater core from the housing and remove…
Where is the heater core 1990 cadillac deville how do you replace heater core Layout of heater core?
How do you change a serpentine belt on a 1990 GMC suburban?
My suburban has a automatic tensioner therefore I need to do is take the tension off with a long wrench and slide the belt from underneath it and replace it with the new one. The tensioner is right by the water pump. If not then you will need to loosen the alternator bolt and drop the alternator to loosen the tension. Trust me manuals can be your best friend!!