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Why one of the cooling fan is not working?
Six things may prevent an electric cooling fan from coming on: Engine thermostat is stuck OPEN (engine never gets hot enough to turn on the fan) Faulty fan relay. A wiring problem (blown fuse, loose or corroded connector, shorts, opens, etc.)
Do both engine fans run all the time?
Even with the cooling fans running all of the time, the engine thermostat should force the engine to warm up at a normal speed. The thermostat will regulate the coolant to the radiator/fans if it is working properly. It can be normal for the cooling fans to run constantly under certain conditions.
How do you know if a fan relay fuse is bad?
Bad Cooling Fan Relay Symptoms
- The engine runs hot or overheats.
- The cooling fans don’t work.
- The cooling fans keep running.
- Warning lights.
- Poor air conditioning performance.
- Swapping Relays.
- Measuring the Relay Coil’s Resistance.
- Listening for Noises.
How do you test a fan motor relay?
Connect a test light or multimeter to the ground (black lead). Turn the ignition key to the on position (engine off), and remove the relay. Using the probe, test all terminal sockets in the relay connector. Two of the four should have power.
Why is the radiator fan not working on my Pontiac Grand Prix?
Without the coolant hitting the sensor, the temp reading will be significantly lower than the actual engine temp. Your Grand Prix’s radiator fan will not kick on. If you do have low coolant, don’t fill it up until the engine has cooled off.
Why is my HVAC on my Pontiac Grand Am Not turning on?
Pontiac Grand Am ,HVAC, Heater Fan will not turn on. – YouTube If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations.
Why is my radiator fan not turning on?
Although the fan itself can go bad, that’s definitely not the place to start a diagnosis. Here are the most common reasons that your radiator fan does not turn on: Before poking your hands around your fan, make sure to treat it like it still could come on, and and keep your hands out of its path.