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How to ad bypass switch for cooling fan?

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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Rcooper
Posts: 7
Joined: 23 June 2025
Year and Model: 1998
Location: Colorado
Has thanked: 9 times

Re: How to ad bypass switch for cooling fan?

Post by Rcooper »

This just for the summer temperatures.Colorado winters it’s just fine.Someone suggested disconnecting the A/C higher pressure side and the fan maybe on sooner and longer.There should be a way to override fan when needed and not mess anything up. I will look at the wire diagram for the cooling fan system.

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