[A2b]

Hello ,new member here I have a Peugeot 207 09 plate 1.4 vti 16v petrol after a recent motorway journey the engine fan is on high speed whenever I start the car till I turn it off does anyone know whats causing it

 

[Gibbo]

Relay issue? Clean all electrical connections at the relays, fan and temperature sensor with electrical contact cleaner first.

 

[wynb]

Is there a small ecu to one side of the radiator? I saw in a technical article this was vulnerable to overheating and the cure was to drill 8 or 10mm cooling holes in its housing.

 

[A2b]

Thanks for replies guys sorry not replied sooner ,anyway been told car has no compression in cylinder 2 and it's going to cost a lot maybe more than cars worth .auto sparky noticed misfire and did compression test.