Ford Focus temp gauge and management light
Variant: 1.6
Model Year: 2002
Categories:
Electrics, ECU, Warnings & Lights
car behaves normally then temp gauge shoots up into red management light comes on and car goes into limp mode switch ign off and back on while driving sorts it, there is no pattern to this it can be ok for days and yet can be doing it every five mins another day, i have changed the cht sensor as this was all that put a code up no codes in ecu now HELP PLEASE
Posted: Mar 28, 2010 (14 years ago)
I'll have to check , but almost sure there is a resistor pack at radiator which feeds the electric fan which is a common fault , causing fan not to cut in / operate .
Posted Mar 28, 2010 (14 years ago)
This explains it ,
2007-06-22 18:41:20
The fans on the Ford Focus serve 2 functions- cool the engine down to a safe temperature and enable the air conditioning system to do its job of heat transfer- specifically at the condenser that is mounted directly in front of the engine cooling radiator. The fans receive their signal to come on from 2 sources- 1- the engine reaches a predetermined temperature that is feed to the PCM and 2-the air conditioning is turned on and the pressure switch is closed to signal the fan on. This is why the fans will run with the a/c on. tHE CLUE IS THE FACT THAT THEY WILL NOT COME ON WITH THE ENGINE RUNNING AND AFTER ABOUT 20- 25 MINS THE NEEDLE GOES TO THE RED ZONE. More than likley (95%) the fan resistor and/or the connector is bad- it is located between the fans at the 12 o clock postion mounted on the shroud assembly. Note- the fans will run via the a/c circuit with this resistor bad. The resistor is available from FORD along with a new connector kit(pigtail)if needed.
2007-06-22 18:41:20
The fans on the Ford Focus serve 2 functions- cool the engine down to a safe temperature and enable the air conditioning system to do its job of heat transfer- specifically at the condenser that is mounted directly in front of the engine cooling radiator. The fans receive their signal to come on from 2 sources- 1- the engine reaches a predetermined temperature that is feed to the PCM and 2-the air conditioning is turned on and the pressure switch is closed to signal the fan on. This is why the fans will run with the a/c on. tHE CLUE IS THE FACT THAT THEY WILL NOT COME ON WITH THE ENGINE RUNNING AND AFTER ABOUT 20- 25 MINS THE NEEDLE GOES TO THE RED ZONE. More than likley (95%) the fan resistor and/or the connector is bad- it is located between the fans at the 12 o clock postion mounted on the shroud assembly. Note- the fans will run via the a/c circuit with this resistor bad. The resistor is available from FORD along with a new connector kit(pigtail)if needed.
Posted Mar 28, 2010 (14 years ago)
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