Removing the heater core in a vehivle is challenging and takes epoch. By reason of of the continuance and labour needed, this a high-cost labour protest at a garage compared to the valuation of the parts. Most of the reward of replacement Testament accordingly be saved by the do-it-yourselfer. Some mechanical existence and proficiency is needed to be booming.
Instructions
1. Assemble definite the vehivle is cooled from running. Bleed the radiator of all coolant by opening the petcock at the backside of the radiator and loosening the radiator cap so there is no vacuum energy. The coolant can be saved in a container and reused provided it is relatively latest, Disinfected, permanent antifreeze, however extra doable it needs to be discarded in a protected course at your limited landfill/solid dissipate effortlessness.
2. Remove the heater core refreshment lines as they come over the firewall between the passenger and engine compartments. They are the two metal pipes under the hood at the firewall that credible life down the firewall at the evaporator sealing plate. An online mechanical diagram of your assemble and mannequin van or a reference Chilton's or Hayne's repair tome can be invaluable here (distinguish Money). Provided your vehicle has air conditioning or is a newer vehicle with so embryonic extent to earnings access that it seems the engine must be removed to access the lines, it is time to rethink the process and take it to a garage.
3. Access the heater core from inside the passenger compartment on the passenger side under the dash. Remove the top of the dash pad by taking out the screws under the front lip of the pad. A screw at the top will be hard to get at, which is why the top of the dash must be taken out so you can use both hands.5. Remove the screws that hold the core in place by a steel clamp fastened with screws. First remove the screws; then remove the clamp.
Remove the lower trim panel from under the passenger-side dash if there is one. Look under the dash on the passenger side for the plastic box that contains the heater core. Take out the screws around this box. Also remove the screws in the defroster vent holes. Because of finish work, screws will be recessed, tucked away and difficult to access. Patience, trial and error and a detailed manual for your particular vehicle with diagrams is again most helpful.4.
6. Put a plastic dishpan on the passenger-side floor interior or plastic sheet down to catch any coolant still trapped in the system. Take out the heater core by pulling it gently and wiggling it. Pull slowly, and it should come out fairly easily.
