Ok The car has 87K miles on it. I just had the water pump replaced because it was leaking coolant. The light comes on when I start the car and stays on until the Temp gage reads around 180 degrees. I have been keeping an eye on the coolant level and it has not changed. Do I have a bad sensor or is there an air bubble? I also put stop leak in prior to getting my water pump replaced. Could this be causing a clog in the system somewhere? Please help me diagnose this and any suggestions on how to fix would be most appreciated.2000 chevy impala low coolant light on???The coolant sensor shouldn't be bad, it just needs to be reset. The nearest Chey dealership can do this for you. Once it's been reset and eventually comes back on then there's a problem which the dealership can detect with a little hand held system scanner that plugs into your car.2000 chevy impala low coolant light on???If you coolant level is ok ,get a rubber hammer or something and tap on the coolant tank. These sensors have a habit of sticking after work is done on the coolant system. The stop leak probably stuck it.2000 chevy impala low coolant light on???is the sensor on the side of the radiator or the coolant reservoir.is it plastic or brass type.the sensors are cheap.jus replace them.disconnect your battery terminals for 15min.reconnect add fluid and enjoy...2000 chevy impala low coolant light on???Hey we have the same car but I have double the miles and she's still running like a beaut! Its probably a sensor problem since it does go off at times. Get a diagnostic reading.2000 chevy impala low coolant light on???if the coolant level is good then the sensor may be bad by not reading the right temp at lower readings Replace it its usually cheap if it dosent work then the problem might be in the ECM or the instrument cluster2000 chevy impala low coolant light on???Thermostat is on the fritz and or your sensor. It shouold all be under warranty if you just got it fixed...take it back in.2000 chevy impala low coolant light on???If you have the 3.4L you might want to have the head gasket checked. It is a very common problem and would explain the coolant loss. Check your oil, to see if it is milky in color and texture2000 chevy impala low coolant light on???I have a 2000 Impala.
I wouldn't worry about the lights. All GM cars have those glitches. As long as your temp is ok, and you're not leaking anything except water off the AC unit, you're fine.2000 chevy impala low coolant light on???intake gaskets, i bet 1,000,000,000.00 dollars they are leaking they all do and it cost about 350 to get them replaced2000 chevy impala low coolant light on???there is a sensor in the %26quot;overflow%26quot; ( where you fill the system) that is the problem. clean the sensor first and if problem persists then replace.2000 chevy impala low coolant light on???Ok, check the sensory rotar before flushing the coolant. Apply a compound known as 'terrier soluable' into the coolant mainframe. Be sure to only fill it at the allowable tempature. From there, run your engine for a good 2 hours, turn off, let cool, then buy something known as 'mercury saline' to tighten up any cracks.
