I recently rewired my radiator and A/C cooling fan relay sockets (91 Saab 900S), per a TSB, so that both fans now come on, per the rad thermoswitch calling, vs just one.
The only info I can provide wrt to the (used) replacement relay is that it's a 5-pin Cartier, 2 to 3X taller than the stock Bosch 12V 2x15A relay, purported to be a "12v-50A" (12V but not 50A stamped on side) and "a load reduction relay"
Testing the circuit, there is about a 1/2 second delay in both turning the cooling fans on or off (time lag seems equal). Whereas w/the Bosch relay, for one fan, on/off was virtually instantaneous
Each fan has a distinct 30A fuse
Is this normal behavior, due to the Cartier possibly being a "load reduction relay" (aren't most/all relays essentially that?), or merely the start of a sticking relay? The relay is expensive new, but I'll get one, if needed.
Thank you, Lance