FixVault

Heater Core Backflushing

WARNING: This page is about a different car, the 2007 Ford Pickup, 2007 Ford F550 Super Duty, 2007 Ford F450 Super Duty, and 2007 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
Special Tools

Illustration Tool Name Tool Number
GF0000637
Drain Kit 164-R3662 or equivalent
GF0000636
Flush Kit Hardware Package 164-R3658 or equivalent
Material

Item Specification
Premium Cooling System Flush
VC-1
ESR-M14P7-A
    WARNING: Always allow the engine to cool before opening the cooling system. Do not unscrew the coolant pressure relief cap when the engine is operating or the cooling system is hot. The cooling system is under pressure; steam and hot liquid can come out forcefully when the cap is loosened slightly. Failure to follow these instructions may result in serious personal injury.
  1. Once pressure is released, remove the pressure relief cap.
  2. Clamp off the heater hoses.
  3. NOTE: Refer to the cooling system Flush-All Operating Instructions for particular vehicle hook-up.
  4. Use cooling system Flush-All, Flush Kit Hardware Package and Drain Kit to backflush the heater core. Use Premium Cooling System Flush or equivalent.
  5. Remove the clamps from the heater hoses.