Low Voltage at Engine Fan
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Low Voltage at Engine Fan
Hope this helps someone else.
2004 Civic Sedan 1.7L Automatic with intermittent Engine Fan failure. Watched temps climb over 210F with BlueDriver App in Live mode.
Non-Honda Radiator Cap disintegrated. Replaced Cap and T-Stat with Honda parts. Burped properly. Engine Fan still inop.
Engine Fan, A/C Fan, Temp Sensor, Thermostat Fan Switch, fuses underhood, fuses under dash #14, fan relays, check out ok.
Are you sure?
I was only getting half the potential (6v) at the Engine Fan. Fan is a new one.
A/C ON only operates the Condenser Fan at this time. That's when 6V is found at Engine Fan.
9v Battery powered the Fan.
The A/C Fan connector powers the Fan.
Bypassing the T-Stat Fan Switch with thin wire jumper, Ignition power ON, hear the relay(s) clicking?
Probably not.
The Horn Relay is the same #Part Number Relay for the Engine and A/C Fans. Beep, it's a good relay.
I replaced the Engine Fan Relay. My car fixed.
2004 Civic Sedan 1.7L Automatic with intermittent Engine Fan failure. Watched temps climb over 210F with BlueDriver App in Live mode.
Non-Honda Radiator Cap disintegrated. Replaced Cap and T-Stat with Honda parts. Burped properly. Engine Fan still inop.
Engine Fan, A/C Fan, Temp Sensor, Thermostat Fan Switch, fuses underhood, fuses under dash #14, fan relays, check out ok.
Are you sure?
I was only getting half the potential (6v) at the Engine Fan. Fan is a new one.
A/C ON only operates the Condenser Fan at this time. That's when 6V is found at Engine Fan.
9v Battery powered the Fan.
The A/C Fan connector powers the Fan.
Bypassing the T-Stat Fan Switch with thin wire jumper, Ignition power ON, hear the relay(s) clicking?
Probably not.
The Horn Relay is the same #Part Number Relay for the Engine and A/C Fans. Beep, it's a good relay.
I replaced the Engine Fan Relay. My car fixed.
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