Question about 1988 Chevrolet Corsica

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Coolant fan relay... '88 Corsica 2.0

I have an 88 Corsica 2.0/5speed. I can't seem to find any info (books or online) where the Coolant Fan Relay is located. Thanks for your time!

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I have a problem with my car and i dont have idea where i can find these problem... the engine seems working properly and the oil is in good condition no burning smell, nothing mix of any kind of liquid and its a chevrolet corsica 1995. my problem is the tempereture gage is goes up and down, and the cooling fan does not working continieusly it does work but it takes a while to get running and the coolant is always getting low and i can't find any leakage. could you be so kind to tell me what wrong with this cace than you! john

Posted on Mar 19, 2009

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Trace the wire from the coolant fan motor back a ways. More than likely it's located behind the grille on a support near the radiator, between the radiator and the grille.

Posted on Dec 16, 2008


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Where is the cooling fan switch located on my 2005 malibu 3.5liter v6

Cooling fan switch ? The cooling fans (2) on that motor are controlled by three relays . A coolant temp. sensor gives temp info to the PCM - engine computer .
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The PCM commands Low Speed Fans on under the following conditions:
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• When A/C is requested and the ambient temperature is more than 50°C (122°F).
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Watch this video ,it shows how it works !
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1 Answer

Where is the radiator fan relay in 1995 cherokee 4.0L inline 6

most 93 to 95 have viscus clutch not electric fan (A/C evap fan sure) but some do have the Aux fan too. and the PCM reports DTC errors, if the relay fails. did it? report that?
ok the 95 XJ with 4.0 does have fan.... have FSM in hand.
If the ECT has air pockets it well never report hot temps.
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page 35 Chapter 7
the viscous fan locksup at (165° to 180° F).
the electric fan is as follows.
i guess you never looked in the PDC before or its lables
"The fan is controlled by the cooling
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center (PDC). For the location of relay within
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and now AUX Fan , quote2.
"When coolant temperature is above 88°C (190°F),
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given these facts? why not turn on A/C and end the guessing.

I use my scan tool , and innova 3140 for jeep OBD1.
it shows me what he pcm sees for ECT readings
if the engine is at 100C and the ECT shows way lower
its bad. or has air pockets around it,
no ect runs in air and works, none,.
if say the ECT is at 100C and the fan relay is not closed
the relay is bad or ECU driver to it blown. (bad ecu)
if the relay coil is hot, and the fan is not the relay is bad.

if the relay is closed and 12vdc out of it, then fan is dead.
if the fan is good (hot wired), and the relay out is hot , the wires are bad from relay to fan.
a $10 voltmeter and the guessing ends.

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Well I'm sure there are kits to wire up electric fans on cars that are not designed for one.
You would need a relay and something to turn the relay on. A coolant sensor won't do the trick, the sensor is what tells the computer the engine temp, and the computer decides when to ground the fan relay.
You would need a temp switch that is designed to close at say 220 degrees to ground or power the fan relay.
The fan motor would have ground and power wires.

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Where is the cooling fan sensor on my 1995 chevy corsica

The computer takes info from the engine temp sensor to decide if the fan is needed. The temp sensor is on the intake manifold and has two wires. Check the relay too.

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The engine seems to be getting hot. Is there a fan sensor that could be causing the problem?

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