2. Move the heater temperature control lever to the maximum "Hot" position.
3. To provide more working space, remove the left front lower engine compartment protection by unscrewing five bolts.
4. Remove the radiator cap and place a suitable container under the left side of the radiator.
5. On vertical flow radiators, open the drain plug (Figure 2.3)On cross-flow radiators, loosen the clamp and carefully release the lower hose from the radiator outlet pipe (Figure 2.4). Drain the refrigerant into a container. If the refrigerant is old or contaminated, unscrew the bolt from the expansion tank and drain it.
Figure 2.3. Draining the coolant - vertical flow radiator
Figure 2.4. Draining the coolant - cross flow radiator
6. On carburetor models, the drain plugs are screwed in front (photo) and behind (on later models) cylinder #4 in the block. On some models, a second, smaller plug is screwed in front of cylinders #1 and #2. On 2.0L fuel-injected models, remove the two screws securing the heater and drain the coolant through the heater hose. On Turbo models, the procedure is the same, access behind the turbo is extremely limited. Make sure the turbo and exhaust system are completely cool before disconnecting the pipe.
3.6. Cylinder Block Drain Plug - Carburetor Model
7. After draining the refrigerant, flush the system, then fill it again.