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2003 S40 engine fan

Help, Advice, Owners' Discussion and DIY Tutorials on S40 and V40. In this forum you'll find S40/V40-specific owners asking and answering questions on maintenance, ownership, repairs, tutorials and almost every do-it-yourself thing you can do to save money owning these Volvos.

1996 - 2004 S40
1996 - 2004 V40

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martin95
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Joined: 30 March 2008
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2003 S40 engine fan

Post by martin95 »

My problem is that the engine auxiliary fan turns on and off randomly.

The 2003 S40 has two fans, one the engine fan and the other the auxiliary fan. Does anyone know if both of these fans run off of the coolant temp sensor or is there a different sensor for the auxiliary fan?

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