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specific cooling fan questions...help please ? Posted by vtsnaab [Email] ![]() ![]() ![]() |
(My car is a '91 9KT 5sp)
Hello Folks.
Once again my car's cooling fan is inop. and this time it stopped with the
fuse for the time-delay blowing repeatedly at first...
I have replaced the 4-pin time delay relay with a standard 4-pin relay and
it is still inop.; I have also re-collected and read all I could find so I
have the clues I need to get this working again, but these facts elude me:
1 - When the thermo switch is working correctly does the fan's high speed
depend upon the low speed relay as well - meaning, if the low speed doesn't
pull in first will that prevent high speed operation ?
2 - When the a/c is engaged should only the a/c fan start or does that also
start the main cooling fan at the same time ?
I have checked all my fuses, opened and manually engaged the armatures of
the relays to prove they have power and the fan does work at both speeds,
therefore I conclude this is a control issue, probably relating to thermo
switch wiring in poor shape despite my previous repairs to it, but I need
the final checks and to reach that wiring before the repair can be done,
which in the current conditions is going to take a day or two for me...
Thanks !
mark
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