Does any one know the cfm specs of a stock 420sel condenser fan? Or. does anyone know how to rig high fan to come on with the a/c on? I think my stock fan's low speed is too inadequate for san antonio stop and go traffic. I was once able to make the high fan come on all the time by disconnecting one of the green wires on a sensor in front of the engine, but it seems after a while the fan would resume normal operation even with the wires disconnected. Thanks in avance for any replies.

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1984 300SD Orient Red/ Palomino
1989 560SEC
2016 Mazda 6 6 speed manual
1995 Ford F-150 reg cab 4.9 5speed manual

Jumper the A/C temperature switch wires at the reciever dryer = AUX fan will run any time the ignition is on.



Have a great day.

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ASE Master Mechanic
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1985 300SD
1983 300D
2003 Volvo V70

https://www.boldegoist.com/

This is true, but I need high fan.

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1984 300SD Orient Red/ Palomino
1989 560SEC
2016 Mazda 6 6 speed manual
1995 Ford F-150 reg cab 4.9 5speed manual

Jumper the Aux Fan temperature switch wires at the thermostat housing = AUX fan will run on high any time the ignition is on. It is the 3 prong switch jump the two that are side by side not the single one

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William
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1987 420 SEL - Like a fine wine only better with age

So take a piece of wire and jump between the connectons on the wire itself?

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1984 300SD Orient Red/ Palomino
1989 560SEC
2016 Mazda 6 6 speed manual
1995 Ford F-150 reg cab 4.9 5speed manual

The pins are on the switch and the female connectors are in the wiring harness. Take a small piece of wire and short out the two pins that sit side by side. Then put the plug on the wiring harness back on the switch.

Do not put the jumper wire into the female ends and reconnect the plug to the switch. Doing this will expand the diameter of the holes and will cause a loose connection after you remove the jumper wire at a later time.

Hope This Helps!

__________________
William
________________________________________
1987 420 SEL - Like a fine wine only better with age

Ahh. Thank you

__________________
1984 300SD Orient Red/ Palomino
1989 560SEC
2016 Mazda 6 6 speed manual
1995 Ford F-150 reg cab 4.9 5speed manual