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Omega General Help / 1994 Omega x20xev cooling fan constantly on full
« on: 29 December 2022, 15:45:12 »
Girlfriend came home now complaining that her Omega made a strange noise. Quickly found the engine cooling fan running flat out. Outside temp 0C Engine temp on the dash showed completely normal. Coolant level normal. On disconecting temp sensor on radiator the fan stops. Relay in enginebay relay box clicks when temp sensor gets reconnected. Fan starts up and runs on full as soon as tempsensor is reconnected. Upper radiator hose varm and lower hose cold. Nice warmth in cabin heater. Radiator probably 3 months old.
Are the sensor itself the most likely culprit?
Are the sensor itself the most likely culprit?