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Car Forum / Driving, Maintenance, Tuning / Maintenance and Repair / September 2005

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1995: chevy cavalier . 2 door. Cooling fan swtich.. where is it? please help!

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Rob - 15 Sep 2005 03:40 GMT
Hello

I have a 1995 cavalier.  The cooling fan is not turning on even when
the engine is red hot!.  its electrical driven, and I am sure theres
has to be a switch somewhere that tells it when to turn it on / off.
I cannot seem to be able to find it. Any one has any ideas?

Any help is highly appreciated
tudysmuck@yahoo.com - 15 Sep 2005 08:22 GMT
check and see if you got power to the fan  if not check the relay
if you got power  you have a blown fan motor

UNDER HOOD, DRIVER SIDE, FRONT SIDE OF STRUT TOWER,     MOUNTED ON
FENDERWELL
=AB Paul =BB - 16 Sep 2005 01:10 GMT
> Hello
>
[quoted text clipped - 4 lines]
>
> Any help is highly appreciated

One of the engine temp sensors tells the computer to turn on
the fan at a certain temp.  The ecu then switches on the fan relay.
On your particular car, I don't know where the relay is located.
HOWEVER, a 1995 has a good chance of the fan motor being bad and
not the relay or sensor.
Rob - 16 Sep 2005 01:54 GMT
thanks guys

i appreciate your inputs
1

On Fri, 16 Sep 2005 00:10:05 GMT, "« Paul »" <" « Paul
»"@houston.rr.com> wrote:

>> Hello
>>
[quoted text clipped - 10 lines]
>HOWEVER, a 1995 has a good chance of the fan motor being bad and
>not the relay or sensor.
=AB Paul =BB - 16 Sep 2005 04:10 GMT
> thanks guys
>
> i appreciate your inputs
> 1

Try jumping the fan directly to the battery before going further.
Careful - Those motors have quite a bit of torque (if good) and
will readily slice fingers.
mst - 17 Sep 2005 14:38 GMT
> I have a 1995 cavalier.  The cooling fan is not turning on even when
> the engine is red hot!.  its electrical driven, and I am sure theres
> has to be a switch somewhere that tells it when to turn it on / off.
> I cannot seem to be able to find it. Any one has any ideas?

On my 1995 Camaro, there are three fan relays located
in the fuse/relay box, which, when you open the hood,
is located on the driver side fenderwell.

You can take these relays out and check for continuity
across a couple of the terminals (1 & 4) - then apply
ground/positive to two other posts (2-/5+) and recheck
for continuity (should be). Check for power for each
of the relays' socket, to ensure power is arriving
at the relays.

Check the fuses, too.  Apply power to the fans, directly;
they should come on. If not, the fans are bad.

You can also turn on the A/C - this should kick on the
fans. It's a quick test, but does not necessarily tell
you where the problem is.

Check the ohms on the ECT (Engine Coolant Temp) sensor,
usually located on the front of the water pump or
driver side of the engine.  I show, in my manual, that
it should have 5,700-2,200 ohms when cold, 200-300 ohms
when the engine is at operating temp.

Pick up a Haynes manual for more details.

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