Have 2005 GM denial when to on AC the air doesn't blow out of vents.whats up
IIRC, you access the heater core from the engine compartment. Follow the heater hoses to the firewall to find the core. With the engine off and cold, disconnect the hoses and move them aside. Some coolant will spill out. Try to catch it in a pan and recycle or dispose of properly. There should be a plastic or rubber panel in the area where the hoses connected which can be removed by taking out a few screws. It may have a caulk seal behind it. You may also need to cut a small section of the panel with a razor to separate it from the rest of the firewall. On some GM vehicles, you must dismantle the passenger side of the dash to access the core, but I do not think this is one of them. In any case, there will be some plastic ductwork leading to and from the core. You will need to remove this as well. These ducts are usually press-fit together. Minimal force should be required when removing them. Once the core is exposed, there will be a few small clips holding it in position. Release these and you should be able to ease the core out and carefully put a new one in it's place. More coolant will spill when you remove the core. Also be careful not to cut yourself on the fins. Gloves are recommended. A side note: If the core is not leaking, which would show up as a damp passenger side floor, you may only need to unclog it, which can be done by backflushing the cooling system and/or blowing compressed air through the core via the heater hose connections. Be warned, it is very messy.
The heater core is located under the dashboard inside the car. right behind the radio. theres 2 covers that control the flow of air. the first is relatively simple. remove the bolts and pull it out, if it resists try to find what it is hung up on. then the second cover is what covers the actual heater core. remove that by removing the screws and it should come out also with relative ease. then on the outside of the car, almost to the bottom of the firewall, there are two hoses, one is your ac the other is your heat, remove both of those and the heater core should be free other than four screws holding it in the car, remove those and it should come out. replacement is the exact opposite of removal.
SOURCE: heater hoses on 1995 beretta
there should be a long one and a short one,the longer one goes to where the thermostat housing is and th shorter one hooks up close to the back of the motor.
1,971 views
Usually answered in minutes!
I don't think so. It's my neices car and I was asking for my brother. Floorboard staying wet and inside the car smells like antifreeze. Figured that was the problem, but wasn't sure if i had to remove the whole dash.
Mitchbtu, Thanks for the info I was worried that I would have to remove the whole dash. Thanks!
u must remove the dash, do u have a factory service manual?
this is not a job for the home mechanic, it takes all day and then some, u MUST have a manual, u may get it apart but the chances of getting all that stuff hooked back up without a Chevy factory repair manual are not good, have read some real horror stories.
Your nuts to say u can't do it at home and need to remove the dash can be done in an hour or to only thing that gets in the way is the center counsel. remove the heater core hose on the outside use a 7/32 socket with a 1/4 drive ratchet and extension remove the upper and lower heater covers remove the straps bolting the heater core to the cover and remove the heater core.
×