2003 chevy impala Rad fans run on high when key is on replaced relays ,temp sensor and thermostat

StevePam Lucchesi

Asked by Nov 04, 2014 at 09:08 PM about the 2003 Chevrolet Impala Base

Question type: Maintenance & Repair

Fans run for radiator  on hi when key is on  Replaced  temp sensor  thermostat  and
relays . temp gauge  not working . TWO codes P1115  PO118 and PO 125  What could
be wrong?

1 Answer


these can be tough ones, but definitely check the coolant level, the wiring to the ETC, and the connections to the ETC

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