My cars radiator fan wont blow at all anymore whats wrong?

105

Asked by Dec 27, 2016 at 11:05 PM about the 1992 Cadillac Eldorado

Question type: Maintenance & Repair

I have a 1992 cadillac eldorado, first i would
like to ask if the radiator fan is supposed to
run nonstop whenever the engine is running

on these cars cause mine has done that as
long as i've had this vehicle. The fan
stopped working some time ago and the
local service shop replaced the fanmotor
with a new one and it worked fine for awhile,
until now, i told the mechanic before he
replaced the fanmotor that the wiring that
connects into the fanmotor looks kinda
crappy and are those the cause of the fan
not working (apparently not) but even before
they replaced the fanmotor when the
fanstopped blowing it started blowing again
if i just pushed or lifted the wire that
connected into the fan, so that's why i
suspected a connection error or that the
wires needed to be replaced or something.
And after they replaced the fanmotor the fan
has worked only slightly better, its still like it

has a connection error or bad wires because
the fan stopoed working intermittently and
just bending or pushing the wire a little bit
started the fan immediately, BUT NOW TlHE
FAN STOPPED WORKING AGAIN and even
pushing or bending those wires wont start
the fan anymore so i think the wire has
broken inside completely now. Offcourse
there's only one way to find out. Or if the fan
really is not supposed to blow all the time
the engine is running that the fanmotor has
blown up or something.

4 Answers

96,655

They are not suppose to run all the time, no doubt someone has done away with the thermoswitch and relay system and wired it direct to a power source that is hot when the key is on, so either rewire it back to factory or cleanup the existing wiring, test the current fan motor and if it is bad replace it, loose connections can burn up contacts points so make sure the rewire uses the correct connectors.

1 of 1 people found this helpful.
Best Answer
775

Do not drive the car you willl cook that motor

4 of 4 people found this helpful.
105

im not an electrician, is this something i could fix myself with proper instructions, or should i have a professional take a look at it, an if so would it be safe to drive about 25 miles at around 45 mph to the autoshop. at those speeds the engine coolant temperature is at 197-205 degrees is it safe to drive at those temperatures, that leads me to another question what is the normal operating temperature for a cadillac 4,9 engine?

96,655

I doubt you could fix it yourself, as you don't really know what has been rerouted in the cooling fan circuits. As far as driving that far as long as the engine temps stay in that area you should be just fine. My Deville will run between 210 and 220 degrees just depends on the outside temps, A/C on or off, stuff like that.

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