Changing the heater core requires complete removal of the dash panel and plenum box. To do this you have to remove the steering wheel, steering column, evacuate and recharge the refrigerant system and drain the radiator. I would only consider changing the heater core if it is physically leaking into the passenger compartment. If the problem is heat transfer to the HVAC system only, the problem is more likely with the blend doors. Check heatertreater.net for pictures and diagnostic information.
wjjeeps.com has good instructions for dash removal.
You will need to remove the water lines from your heater core. Remove the heater core retaining bolts. Reverse the process to install the new heater core.
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.
4 bolts are romoved from the backsode of the steering wheel. If airbag equipped remove airbag fuse first. Then remove airbag/ horn/ center assembly. Remove large nut from center of wheel, then pull wheel with steering wheel puller.
to gain access to the heater control board pull the control knobs off the heater facia undo screws and remove facia the contact board and contact sliders can then be removed and replaced as nessary
Remove the center switch console. remove the 4 spring clips holding the square heater motor housing and remove the housing. Inside the heater motor housing Remove the two spring clips holding the heater motor in Remove wiring connections and then remove the heater motor. Install new heater motor and installation is in the reverse order of above.
Get a manual on your car and it will have pictures and everything. It is not an easy job.
The dash must be completely removed in order to gain access to the heater box. Then the heater hoses are disconnected and the heater box is removed and opened up. That gains access to the heater core for relacement.
You carefully remove the top coolant hose to the heater, not totally off, just enough so air can get out.
To replace the clutch on a 1996 Mercury Tracer 1.9, you need to remove several components, including the transmission, which requires disconnecting the battery, removing the drive shafts, and detaching the transmission mount and linkage. You’ll also need to take off the starter motor, exhaust components, and possibly the crossmember for additional clearance. Once the transmission is out, you can access and replace the clutch assembly.
Purchase a Hanes Auto Repair manual for the 1999 Mercury Tracer
Begin by removing the retaining ring at the top of your 1996 Mercury Tracer ignition switch. The ignition lock cylinder will slide out. Remove the wiring harness from the end of the cylinder. Reverse the process to install your new ignition lock cylinder.
Open the glove compartment and remove it. Disconnect the electrical connector and the three mounting screws. Remove motor.
To replace the heater core on a 1993 Mercury Grand Marquis, start by disconnecting the battery and draining the coolant from the radiator. Remove the dashboard and related components to access the heater core housing. Disconnect the hoses from the heater core, unbolt it from the housing, and replace it with the new unit. Finally, reassemble everything, refill the coolant, and check for leaks.
I take leaves and twigs out of the heater blower motor fan by remove four screws from a plastic housing under the glove compartment. The motor falls into your hands. PS the leaves and twigs make a heck of a noise - when you put the fan motor on.
3 screws facing the engine
Remove the belt from your Mercury alternator. Remove the wiring harness from the alternator. Remove the retaining bolts. Reverse the process to install your new alternator.
To replace the headlight lens on a 1997 Mercury Tracer, first, open the hood and remove the retaining screws or clips holding the headlight assembly in place. Carefully pull the assembly out and disconnect the wiring harness. Remove the old lens by unscrewing or unclipping it, then attach the new lens, ensuring it fits securely. Finally, reconnect the wiring harness, reinsert the assembly, and secure it with the screws or clips.