Why is my coolant fan not working on my Chevy Cobalt?
Why is my coolant fan not working on my Chevy Cobalt?
Some models have a resistor mounted in the fan shroud that could be a possible cause, just run a jumper wire and bypass the resistor. If the fan works replace the resistor. If the fan does not kick in after that check for power at the fan itself, if the fan has been blowing fuses I would suspect you will need a new fan motor.
Where is the power fuse on a Chevy Cobalt?
Cigar lighter (power outlet) fuse in the Chevrolet Cobalt is located in the Engine Compartment fuse box (see fuse “OUTLET” or “LTR”). It is located on the passenger side of the vehicle, on the lower portion of the instrument panel near the floor, behind the cover. It is located in the engine compartment, under the cover. How to check the fuses?
When did the Chevy Cobalt first come out?
In this article, we consider the first-generation Chevrolet Cobalt, produced from 2004 to 2010. Here you will find fuse box diagrams of Chevrolet Cobalt 2005, 2006, 2007, 2008, 2009 and 2010, get information about the location of the fuse panels inside the car, and learn about the assignment of each fuse (fuse layout) and relay.
What to do if your coolant fan won’t turn on?
If the fan works replace the resistor. If the fan does not kick in after that check for power at the fan itself, if the fan has been blowing fuses I would suspect you will need a new fan motor. Also if your temp gauge is showing a temperature on the dash I would not suspect that as an issue.
Some models have a resistor mounted in the fan shroud that could be a possible cause, just run a jumper wire and bypass the resistor. If the fan works replace the resistor. If the fan does not kick in after that check for power at the fan itself, if the fan has been blowing fuses I would suspect you will need a new fan motor.
If the fan works replace the resistor. If the fan does not kick in after that check for power at the fan itself, if the fan has been blowing fuses I would suspect you will need a new fan motor. Also if your temp gauge is showing a temperature on the dash I would not suspect that as an issue.
What should the coolant temp be for a low speed fan?
The cooling fan motor is grounded through its own ground circuit. The PCM commands Low Speed Fans ON under the following conditions: Engine coolant temperature (ECT) exceeds approximately 106°C (223°F). A/C refrigerant pressure exceeds 1 310 kPa (190 psi).
What should the ECT be on a Chevy Cobalt?
After the vehicle is shut off, the ECT at key-off is greater than 140°C (284°F) and system voltage is more than 12 volts. The fans will stay on for approximately 3 minutes. The PCM commands High Speed Fans ON under the following conditions: ECT reaches 110°C (230°F).
The cooling fan motor is grounded through its own ground circuit. The PCM commands Low Speed Fans ON under the following conditions: Engine coolant temperature (ECT) exceeds approximately 106°C (223°F). A/C refrigerant pressure exceeds 1 310 kPa (190 psi).
After the vehicle is shut off, the ECT at key-off is greater than 140°C (284°F) and system voltage is more than 12 volts. The fans will stay on for approximately 3 minutes. The PCM commands High Speed Fans ON under the following conditions: ECT reaches 110°C (230°F).
