Why is my cobalt JustAnswer cooling fan not working?
Why is my cobalt JustAnswer cooling fan not working?
When the cooling fan 2 relay is energized, voltage is delivered to the cooling fan high speed winding. 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).
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).
What should I do if my cooling fan is not working?
What I need to to do is manually bypass those one at a time. Take a chunk of wire and jump pins 30 to 87 using the numbers stamped under the relay. One should turn low on, the other high. If nothing then with a meter or light, test the pins fir power. 2 in each should have power all the time.
How does the cooling fan work on a Chevy Cobalt?
The engine cooling fan system consists of one cooling fan and two relays. The cooling fan has 2 windings in the motor, one winding is for low speed and the other winding is for high speed. Voltage is supplied to the relays from the 30 A cooling fan 1 and 30 A cooling fan 2 fuses.
What is coolant temp on Cobalt LS engine?
2006 cobalt LS engine… engine cooling fan does not turn on and the coolant temperature goes up to 250 and I’ve to shut it down. I changed the coolant temp sensor and thermostat and still does it.
Is there a problem with my 2005 Cobalt?
Certain 2005 Cobalt cars and 2005 Pursuit cars may have a problem with a defective fan wiring harness; voltage spikes may damage the transducer resulting in a loss of A/C. This new harness is designed to isolate the voltage spikes, refer to GM bulletin 05034A. It is listed for the following vehicles with the 2.2L engine with Air Conditioning:
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).
