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Hi
I have a Peugeot 407SW 2.0 HDI 136 (07 plate)
I have had this problem for some time where the engine temperature is not correct. Now when driving on the motorway or roads with no traffic the engine temperature does not exceed 70 deg c. When coasting downhill the temp goes near to zero which I know is not right. Now when my car is stuck in traffic for longer than 20 minutes the engine temp rises and keeps rising till it goes into the red. When this happens I put the blower on hot windows down and cool it down that way. When the traffic clears and driving normally the temp goes right down to 70 or below. My engine cooling fan does not turn on at all so I know there is a fault somewhere on that and that’s why it’s getting too hot but it doesn’t explain why it gets too cool. If there was just a fault where it gets too hot then I can say it’s the fan because it’s not turning. But because it’s not getting warm either then it makes me think there is more of a problem with the Engine temperature circuit. There could be a number of faults but I don’t know. The cooling fan is not stuck it moves freely when moved with hand. I have searched forums but could not find anything relating to this type of problem. Any help would be appreciated.
Thank you
I have a Peugeot 407SW 2.0 HDI 136 (07 plate)
I have had this problem for some time where the engine temperature is not correct. Now when driving on the motorway or roads with no traffic the engine temperature does not exceed 70 deg c. When coasting downhill the temp goes near to zero which I know is not right. Now when my car is stuck in traffic for longer than 20 minutes the engine temp rises and keeps rising till it goes into the red. When this happens I put the blower on hot windows down and cool it down that way. When the traffic clears and driving normally the temp goes right down to 70 or below. My engine cooling fan does not turn on at all so I know there is a fault somewhere on that and that’s why it’s getting too hot but it doesn’t explain why it gets too cool. If there was just a fault where it gets too hot then I can say it’s the fan because it’s not turning. But because it’s not getting warm either then it makes me think there is more of a problem with the Engine temperature circuit. There could be a number of faults but I don’t know. The cooling fan is not stuck it moves freely when moved with hand. I have searched forums but could not find anything relating to this type of problem. Any help would be appreciated.
Thank you