# Evaporator Core Replacement in Upland: Planning a Dash-Out Job > Planning an evaporator core job? Route 66 Auto Repair in Upland explains the dash-out timeline, add-on choices and how your interior is protected. Source: https://route66autorepairshop.com/cooling-heating-ac-services/ac-evaporator-core-replacement Updated: 2026-09-17 Business: Route 66 Auto Repair, 1775 W Foothill Blvd, Upland, CA 91786, (909) 608-7699 Hours: Monday to Friday 8 AM–5 PM, Saturday 8 AM–2 PM, Sunday closed **TLDR:** A core swap is a **multi-day job**. We agree on **add-on parts** before teardown, protect the cabin, and text you if the look window slips. Evaporator core replacement is a planning job as much as a repair, and Route 66 Auto Repair in Upland treats it that way. Once a leak is proven at the core, the car is usually with us for more than a day while the dashboard comes out. This page covers what you decide before we start, how we protect your interior, and what you should check when you pick it up. ## What should you decide before the dash comes out? Most of the cost is labor to reach the core. That labor overlaps with other parts in the same box, so the smart time to replace them is now. Each option gets its own line on the estimate, and you choose. Our [AC evaporator replacement](https://route66autorepairshop.com/cooling-heating-ac-services/ac-evaporator-replacement) page explains how the leak gets proven; this is about the job once it is. - Heater core, if it is original on a high-mileage vehicle - Blend and mode door actuators that already click or lag - Expansion valve, which sits right at the core - Case foam seals that have crumbled - Cabin filter replacement ## How do we protect your interior? Seats and carpet are covered before work begins. Fasteners are bagged and labeled by area. The airbag system is disabled following the maker's procedure, and the battery is handled so modules keep their settings where possible. Broken clips are replaced, since they cause rattles. If a second technician is needed to lift the dash out, we explain that before the clock starts. ## Our evaporator core replacement process 1. **Approve the plan:** You pick add-ons, and we confirm parts are on hand before teardown. 2. **Recover and drain:** Refrigerant is recovered and coolant is drained, since the heater core shares the box. 3. **Remove and rebuild the box:** The dash and HVAC case come out, the new core and seals go in, and doors are checked for smooth travel. 4. **Reinstall and recalibrate:** The dash goes back, actuators are recalibrated, and modules are scanned for codes. 5. **Charge and road-test:** Vacuum hold, charge by weight, coolant bleed and a road test over rough pavement finish the job. ## What's included in evaporator core replacement - Seat and carpet protection - Refrigerant recovery and coolant drain - Dash and HVAC case removal and refit - New evaporator core, seals and drier - Actuator recalibration and module scan - Vacuum hold, charge by weight, coolant bleed and road test ## Is this a need-now repair? **Need now:** - A leak so fast the system empties within days - Refrigerant smell inside the cabin with the fan running **Need later:** - A slow core leak that holds through a season with a recharge - Planning the job for cooler months when you can spare the car ## What sets the price and the look window? Dash design sets the labor, and add-ons cost little extra time since the box is already open. We only promise what the board can hold and text you if it slips. AAA members save 10% on parts and labor, up to $75. When a leak cannot be pinned to the core yet, start with [AC system leak detection](https://route66autorepairshop.com/cooling-heating-ac-services/ac-system-leak-detection). ## What to check at pickup and after Try every vent mode before you leave, and listen for rattles on rough roads that first week. Watch the coolant level for a few days, since the heater side was opened. Any issue goes to the front of the line. Clean coolant protects the heater core in that box, so keep up with [radiator and coolant care](https://route66autorepairshop.com/cooling-heating-ac-services/radiator-repair). ## Frequently asked questions ### How long will my car be at the shop? On many models, plan for a couple of working days, longer if a part is back-ordered. We give you a look window the board can hold, text you if it slips, and you can use the after-hours key drop to leave the car. ### Why replace the drier too? Once the system is opened for this long, the drier's moisture capacity is used up. A new one protects the new core and the compressor, so it is part of the standard job. ### Will my radio and settings be lost? Some presets may reset. We save what the procedure allows and recalibrate the climate actuators. --- Call (909) 608-7699 or visit https://route66autorepairshop.com/contact for a written estimate.