I recently installed a new heater core in a 1991 G10 van. I removed the heater fan housing, the heater core hoses, then the compartment came out. After removing the campartment has to be taken apart to replace the core. Alot of work but not all that hard.
If it is like my 1990 Chevy Corsica, I removed the black plastic cover under the center of the dashboard (below the radio etc.) Then remove the screws for the black plastic drip pan; you may need to pull straight away from the fire wall since that is where the drip tube exits. Then remove heater core bracket and screws. [I removed my core to replace the core's cracked hardplastic tubes that also pass through the firewall, with hose and clamps.] {I also removed the glove box to give a little more light and space to crawl under the dash.}
Pull the top off of the black box on the passenger side of truck under the hood. Remove the two heater hoses. Remove the old heater core. Reverse the process. Top off the radiator with antifreeze and check again after a test drive. Enjoy the heat.
You must rock the engine foreward to remove the heater hoses. To do this you need to remove the bolts holding the torque struts to the engine. use a prybar and pull the engine foreward far enough to insert the long bolt you removed from the strut through the loop hole on the strut. This will hold the engine. Then you need to remove the sound insulators under the dash board. There is a black HVAC box under the dash, Look for the center floor vent outlet under the dash and remove it. Then You will be able to access a big square cover on the HVAC box. There is something like 8 screws that hold the cover to the box. Once the cover is removed You will find the heater core and the a/c evaporator (looks like a heater core but a little bigger). There is a plate that retains the heater core in the box. The plate is secured by a couple of bolts. remove those bolts, remove the plate, then remove the heater core. When installing new heater core, use petroleum jelly or some kind of grease like white lithium and apply it to the heater hose necks on the heater core to aide installation of heater hoses.
The entire rack is screwed into the roof of the SUV, up from the SUV roof into the rack. However, if you want to remove the 2 cross-bars, pop off the black plastic "half-cones" at the front of rack, and then the bars can be removed.
1.passenger side at feet remove plastic cover that bolts to dash. 2.remove black plastic square looking cover this is behind first panel you removed. 3.in engine compartment on fire wall left side facing 2-small coolent line come through disconnect. 4.inside pull heater core out replace new.
disconnect heater hoes in engine compartment passanger side fire wall then remove glove box and remove the 6 or 8 screws on the black pannel that covers heater core not to bad about an hour worth of work.
You need to remove the black cover under the dash (passenger side). Remove the two hoses/clamps from the engine side of the heater core, which is against the firewall. After removing the black cover (held down by a few screws), carefully remove the old core, being careful not to spill any remaining fluid from the old core. Obtain a Ford heater core from the dealer (precise fit, better than most aftermarket ones). This job is easier than most heater core replacements as you do NOT have to remove the dash or glove box to access this black cover. answer u do need to remove glov box to access the heater core cover to remove glove box is as easy as removing the ash tray there is one screw to remove then glove box will lift out. then continue as first answer said
This is sort of a difficult job. The black housing under the hood (on the passanger side) has to be removed. The heater core is mounted inside that housing.
remove interior panel and unscrew large black plastic nuts, remove light assembly
To remove the heater core you have to first rmove the bottom dash panels under where the heater controls are then pull the black box that is pu under the dash and the heater core is under there right where the hose comes through from your thermostate
Under the passenger side dashboard. Remove the black kick panel to expose the bottom of the heater box. Look for an oblong plug facing the rear of the vehicle.
passenger side firewall. look at the black oddly shaped box. there are about 15 - 20 1/4 " screws and a few larger ones that hold the top half on remove those and disconnect the ac lines. reverse for installation