Problem fixed. I changed the rad cap.
Could be,Low on coolant.Cooling fan or fans not operating correctly.Coolant circulation restricted (blockage inside radiator).Sticky or stuck thermostat.Air circulation through radiator restricted (blockage outside radiator).
1) Low coolant level? 2) Radiator restricted with leaves or other debris? 3) water pump not circulating coolant properly? 4) defective thermostat? 5) system airbound? 6) coolant fan (if any) not operating? 7) radiator hoses collapsing?
check water pump maybe broke and then check the head gasket may be blown
water pump or thermostat housing crack
Could be the thermostat it's stock, replace it.
If you have re-filled the coolant and checked for leaks no wait time is necessary
I'd check the coolant level first, then the thermostat.
change you thermostat it is stuck open or not closing fully. This allows the coolant to circulate to quickly.
its located behind where the large upper coolant hose connects into the engine un bolt that and bam thermostat... just as a note do this prior to driving anywhere it'll be hot otherwise.
Then diagnose it and fix it. There is more than one possible reason why this is happening. Narrowing it down requires diagnosis. Either you have blockage in the coolant lines or passages, a faulty thermostat, a faulty water pump, or a bad belt driving the water pump.
Motors will shut down automatically if they get too hot. Check your coolant levels and your thermostat. If fluid levels are fine then it is probably a bad thermostat. Never add coolant to a warm or over heated motor, it will crack the head or cause other problems. wait until the motor cools down to add coolant.
the engine will take longer to get to normal operating temp. and the water temp could fluctuate while driving
To change a thermostat on a 2003 Chevy Impala remove the connectors to the battery, wait for the coolant system to be drained and take out the radiator hose. Remove the thermostat and clean it's component, position the thermostat, put the new gasket on top of the thermostat and put engine oil on the bolts. Attach the radio hose and fill the system with coolant. Put the negative part of the battery cable to the terminal and let the car run for a few minutes before driving.
Low coolant, failed thermostat, partially plugged heater core...............
check you water (coolant) level, make sure thermostat is working, radiator leaks, sensor problem
water pump maybe bad
Chances are your thermostat is stuck open. Your cars thermostat sits in a coolant passage. When the car is running your coolant begins to heat up, and at a certain temperature your thermostat opens up and lets coolant flow to the radiator to dispel the heat of the engine to the air. When your thermostat is stuck open, instead of the coolant staying in the engine until it heats up it is constantly circulating through the radiator transferring heat to the atmosphere. When your cars sits still it heats up because the amount of air passing through the radiator is minimal, but as you begin to drive the air flow is increased.
Ideally, a thermostat should be changed before it fails or begins to fail. Personally I would change it every five or six years or so, with normal driving.
If this happened immediately after changing the thermostat, then the most likely problem is the thermostat was installed backwards.The spring side of the thermostat faces the engine. It's the spring that is reacting to the coolant temperature and driving the valve to open/close.When the thermostat cannot open, that prevents any coolant from ever getting to the heater core. Thus, you shiver a lot!Pop it out, flip it over and you should be all sorts of warm and cozy.See "Related Questions" below for more
The coolant temp sensor is probably doing its job. You may have other issues such as being low on coolant or a thermostat going bad.
If this happened immediately after changing the thermostat, then the most likely problem is the thermostat was installed backwards.The spring side of the thermostat faces the engine. It's the spring that is reacting to the coolant temperature and driving the valve to open/close.When the thermostat cannot open, that prevents any coolant from ever getting to the heater core. Thus, you shiver a lot!Pop it out, flip it over and you should be all sorts of warm and cozy.
If the temperature gauge is reading below normal operating temp after driving a little while it may be that your thermostat is stuck open. I replaced my thermostat and it fixed mine.
Thermostat mulfunctioning, leaking coolant fluid or even over driving the car, good luck.OR shifting wrong,drrrr.
Low on coolant. Stuck open thermostat. Poor circulation (plugged heater core).