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Relays

Help, Advice, Owners' Discussion and DIY Tutorials on all Volvo's "mid era" rear wheel drive Volvos.

1975 - 1993 240
1983 - 1992 740
1982 - 1991 760
1986 - 1991 780
1990 - 1998 940
1990 - 1998 960
1997 - 1998 V90/S90

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1990Volvo740
Posts: 18
Joined: 10 August 2024
Year and Model: 1990 Volvo 740 GL NT
Location: Seattle
Been thanked: 1 time

Relays

Post by 1990Volvo740 »

My coolant fan does not come on.
Which of these controls the fan, what does the other one do and what are the test methods for determining if they are good?
Yes I jumped the switch at the top of the radiator with a screwdriver and the fan did not start.
Relays 02 Ed.jpg

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