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Could be that fan is not kicking on. check and make sure it is connected. could also be a vapor lock. some cars require bleeding water system and if so most bleeding screws are located around thermostat housing. Call local autozone and ask if your car requires bleeding water system....NOW the overheating could be from fan not kicking on and the best way to find out is to turn on defrost and if fan is working it will kick on automaticaly. If it does kick on then this shows that fan is working fine but this does not mean that fan is running properly.The fan is controlled by a heat sensor which kicks the fan on when motor reaches a curtain heat range. If this sensor is not working it will cause car to overheat.... Could be also that waterpump is bad.Not all waterpumps leak when they go bad.Sometimes the impeler on the waterpump which is what moves water through the system simply stops working and this would cuase it to overheat.......hope this info helps and good luck...Please rate my post and if you need more info fill free to contact me...Need to find where leak is coming from also for this is more than likely the problem........
For car running hot and overheating issues, I suggest to you go
through this help links. Click this link below and go through the
troubleshooting procedure to take care of the problems: ----Car runs hot?http://howtobyme.blogspot.com/2011/11/car-runs-hot-in-traffic.html -----------All types of car overheating problems and
Although the 4 cylinder is too underpowered to have air conditioning in my opinion, it still shouldn't overheat within 10 minutes unless something is wrong. If your Jeep doesn' not overheat when you are driving WITHOUT AC on then your compressor might have a problem and causing the engine to work too hard to turn it.
But if it overheats without the AC on, then the first thing you need to do is check the cooling fan and see if it operates! There has been a lot of problems with the cooling fan relay on this model. If that isn't it, then move to changing the thermostat and checking the water pump.
From what you have described, which is a rapid over heating of the radiator coolant fluid and therefore a hot engine condition, it would appear that the thermostat in the engine's cooling system is faulty.
If the thermostat is sticking in the closed or nearly closed position temporarily, there will be no flow or very little coolant flow between the engine and the radiator and the engine will overheat.
You have advised that after the engine is shut off , and radiator coolant fluid has cooled, you re-start the engine and drive the car without the overheating condition occurring again and the radiator coolant temperature is normal. This time there is no overheating because the thermostat is working normally.
You should have the thermostat replaced as soon as possible because allowing the engine to overheat can cause very expensive engine damage.
If you had a continuing overheating condition then I would suspect both the thermostat and the water pump. However as the overheating seems to be only temporary, and clears itself after you have shut down the engine and re-started it 10 minutes later (without further overheating arising) then I think you only have a faulty thermostat.
Please also check that the electric fans which draw air through the radiator are operating. These run on a temperature sensor and will switch on automatically once the radiator coolant fluid reaches a certain temperature and then switch off again when the fluid temperature reduces. You will hear them running once they start up. If these fans are not working the radiator coolant can quickly overheat in various driving and temperature conditions because there will be insufficient air flow through the radiator to cool the fluid. If the temperature sensor is faulty or has died, or if the electric motors running the fans are faulty, the fans will not operate.
If the cooling fans, water pump, radiator, and thermostat are all working properly and the engine is still overheating, I would take a look at something a little more simple, like a defective radiator cap. Try this inexpensive fix and see if it works. Sure hope this helps and good luck.
Your overheating problems can have several possible causes.
1) Airlock in heating system - solution - bleed air from cooling system. Method is dependent on make/model of vehicle
2) Radiator blocked - solution - drain and flush radiator
3) Failed waterpump - solution - fit new waterpump
4) Engine thermostat stuck in closed position - solution - fit new thermostat
5) Electric cooling fan (if fitted) failing to operate - solution - check fan, fan operating switch, all wiring and connectors
6) Not enough coolant in system - solution - check and top up to required level. Also check all hoses for sign of leakage.
7) Faulty temperature gauge giving incorrect reading
the thermostat can be easily changed from up top, the T-stat is located at the engine end of the upper radiator hose under the flange the hose connects to. Make sure u follow manufacturer's cooling system bleeding procedures when you refill after the T-stat is changed out.
HI. It could possibly be the the thermostat is stuck shut. If thats the case when the vehicle warms up it will probably overheat all the time. The best way to tell is buy a new one and change it. They are usualy around $10.00 at any autoparts store. If you change it and it still overheats, it could be the waterpump.
I am having the same prob. on 04 300m 83,000 mi. I am a chrysler tech and another tech at my shop had the same problem a week ago. Mine started when i Was on the thruway my guage crept up to 3/4 so i kicked the heat on and it went normal. After stopping I found the water pump went and was leaking bad. I replaced the waterpump timing belt and tensioner pulley. thought it was good untill on a long trip. Noticed temp goin up no leaks this time, coolant full. doesnt overheat with heater on. Actuated fans with DRB3 and both work and are working when car says its overheating. Replaced thermostat and bleed system. thought it was ok untill drove 35mi. suspecting bad wiring plugged radiator or coolant temp sensor. Still driving with heat on low to keep from overheating. any others fix this problem yet?