OEM 2001 Ford Escort Heater Core

2001 Ford Escort Heater Core Parts Questions & Experts Answers

• Q: How to properly backflush the heater core to prevent clogging and ensure optimal coolant flow on 2001 Ford Escort?

  A: Separating heater core backflushing from engine cooling system cleaning is critical because it protects tubes from getting clogged while performing this operation when the system is empty. First detach the outlet heater hose from the water pump while adding a female garden hose adapter and fasten it in place using a clamp. The outlet heater hose with one female hose end should connect to a male garden hose end for water supply. Drain the water through the heater core inlet heater hose after disconnecting it from the cylinder block fitting into an appropriate receptacle. Open any water valve present in the inlet heater hose because vacuum should not be applied. Proceed to operate the water supply valve a few times to produce a surge which dislodges stuck material in heater core tubes so water pressure reaches its full strength for a period of five minutes. Check the water valve vacuum motor function with vacuum application then examine the valve for leaks before replacing it. The hose clamp and female garden hose-end adapter from the outlet heater hose should be removed for reconnecting the water pump fitting and attaching the inlet heater hose to the cylinder block fitting. You need to complete the engine cooling system by mixing 50/50 volumes of Ford Motorcraft Premium Engine Coolant VC-4-A (CXC-10 in Canada, VC-5 in Oregon) or equivalent additives that match Ford specification ESE-M97B44-A with water before testing the heater performance under set engine cooling parameters.