Note that the radiator will clog first where the airflow is greatest
(the deposits come out of solution there first), and if there is a big
cold spot in the radiator in front of the thermostatic spring on the
front of the fan clutch, it will not engage!
Another thing to look for is chopped bugs and other junk stuffed
behind the aux fan in front of the condenser, to junk stuck between
condenser and radiator. If hot air isn't flowing through the two heat
exchangers to the clutch, it will be very slow to engage.
I was astonished at how badly plugged up the condenser was on the TE
when I changed it the other year -- car runs much cooler now. Looked
OK in place, but when I held it up to a light source after taking it
out, at least 50% of the space between the fins was filled with junk.
Peter
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