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Old 07-12-2003, 02:39 PM
Arthur Dalton Arthur Dalton is offline
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Join Date: Aug 1999
Location: Florida / N.H.
Posts: 8,784
The fans are wired in parallel, so they both come on at the same time
There is never a time when just one fan works [ unless it is faulty]
So, you now know that the high fan circuit works
It is spec. to cut-in at 105/107
If it is higher , change the sensor you un-pluged
What u realey want to know, before changing anything, is if the gauge reading is accurate
[ simple resistance/temp chart verification w/ohm meter]

The low fan jumper should be done by pulling the plastic shield back and jump w/screwdriver blade without upplugging the wires.
You could be jumping the sw vs the circuit.
If still no fan , check the resistor behind drivers side headlamp.

[ also, when jumper sw, listen close for relay clicking.]
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