Why is it so cold in my car?
The most common reasons for the temperature to remain low include: A thermostat stuck open. A bad engine coolant temperature sensor. A locked fan clutch.
What happens when your Jeep Grand Cherokee heater stops working?
At this point, the blower motor blows air across the it and the newly heated air blows on to the driver and passengers. If the heater has stopped working in your Grand Cherokee, this process has failed in one way or another.
What does the thermostat on a Jeep Grand Cherokee do?
Never touch the radiator cap unless the vehicle is ICE COLD. The job of your Grand Cherokee’s thermostat is to regulate the temperature of the engine. It does this by allowing water to enter the engine when it is getting hot, and by keeping coolant from entering while the vehicle warms up.
What to do if your Jeep has no heat?
Try sticking a vacuum gauge on it and drive it to see if low vacuum conditions mirrors the low/no heat condition. Also, make sure there are no vacuum leaks (disconnected/broken hoses), especially under the dash in the area of the heater control valves. Let us know what you find.
Why is my Jeep heater cold when idle?
The heat is abnormally cold while idle, but will pickup after accelleration. Heater core replaced last 2,000 miles.147k on the clock. …less than 100 miles and is still the problem. ??? Check the heater hoses in the engine bay for any kinks or sharp bends, this would restrict the liquid flow. KYB Gas-a-Just shocks / Transgo reprogramming shiftkit.
At this point, the blower motor blows air across the it and the newly heated air blows on to the driver and passengers. If the heater has stopped working in your Grand Cherokee, this process has failed in one way or another.
Why is my Jeep Grand Cherokee not cold?
Most of the time, when your Grand Cherokee’s air isn’t blowing cold enough, it is going to be a lack of refrigerant causing the problem. We recommend having a professional recharge your A/C if it does end up being a coolant issue.
Can a Jeep Grand Cherokee have an air conditioner?
It is entirely possible for your Grand Cherokee’s heater to work just fine even when the air conditioner is not blowing cold at all. That’s why troubleshooting the air conditioner is totally different than troubleshooting the heater.
Never touch the radiator cap unless the vehicle is ICE COLD. The job of your Grand Cherokee’s thermostat is to regulate the temperature of the engine. It does this by allowing water to enter the engine when it is getting hot, and by keeping coolant from entering while the vehicle warms up.