Why does my cooling fan stay on all the time?
Cooling fans stay on at all times If the cooling fans are staying on at all times, this is another (less common) symptom of a possible problem with the cooling fan relay. If the relay shorts internally, it may cause power to be permanently switched on, which will cause the fans to run at all times.
Why is my fan constantly running on my car?
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. If the car is hot enough, they may be barely keeping up with demand and stay on.
What can cause radiator fan to keep running?
Here are some possibilities causing the fan to stay running longer.
- low coolant level,
- faulty coolant temperature sensor,
- PCM or ECU defective.
- coolant leaks from the water pump,
- cracked radiator,
- worn upper or lower radiator hoses,
- leaky heater core,
- leaky thermostat housing,
Why is the fan still going after engine turned off?
It’s normal for some vehicles to have a fan run for a few minutes after the car is shut off, generally to keep the engine cool. However, if the fan is running for an extended period, the fan itself can become damaged due to overuse. It’s possible you may have a module or relay failing in your car.
Can a Pontiac Bonneville have an air conditioner?
The air conditioning works fine but if you turn the temperature up to 80 or 85 so it should be heating it does switch the air from the dash opening to the floor openings but the air is cool not hot.
What to do if your Pontiac Bonneville heater is hot?
Run car until fully hot and speed up motor to 2500 for a few seconds and repeat this 5 times to push water into heater core and get the air bubble out. #2: If radiator full when running motor is hot, are both heater hoses hot even with blower running at full speed.
Why does my Pontiac Bonneville have low coolant?
Open the cap, when COOL, and look. Low coolant means the heater core gets an air bubble–air doesn’t transfer heat. If it is low, fill. Run car until fully hot and speed up motor to 2500 for a few seconds and repeat this 5 times to push water into heater core and get the air bubble out.
Why is MY 1993 Bonneville not getting heat?
I have a 1993 Bonneville SSE. I was not getting any heat. I sent it to a local garage and they replaced the temp sensor and the programmer. The mechanic said that it wasn’t the problem and is stumped on why there is still no heat control. The mechanic is stumped with the problem and rigged something so now the heat doesn’t shut off.