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1997 Ford Escort Problems
Heater core developed relatively minor leak & despite preventative fix per recall 02v323000 there was some electrical shorting occurring in the Integrated Air Bag Module located directly below the heating unit containing the heater core. Upon pulling out entire dash to replace heater core I observed that a flimsy plastic cover was indeed placed over the IABM per the recall. However, the job was poorly done and the cover was partially crunche...
There are reports of failures of the CCRM or Constant Control Relay Module. The CCRM has relays and switches inside that control or provide power to the engine cooling fan, AC clutch (to engage the AC compressor), fuel pump and powertrain control module (PCM). Single switches or relays can fail internally causing a number of different symptoms including no start conditions (inoperative fuel pump or PCM), engine running warm due to inoperative cooling fan, or the AC might not blow cold air.
Valve seats (components in the cylinder head that help seal the valve) can fall out. When this happens, it causes rough running and creates noise. Replacement of the cylinder head is commonly required to fix this problem.