97 saturn sl2 temp light flashing and low coolant light flashing what could be the problem ? coolant is full and the heat works.

Is it full of coolant if yes level sensor bad if not fill rad and overflow bottle to proper level and retest

Check your coolant level. Most causes of no heat are low coolant levels or blocked heater cores. If it overheated and has no heat I'll beat its a low coolant level. Check for leaks. Just because the gauge didn't go all the way up doesn't mean much. Those cars trap air in the cooling systems when the level gets low. That will cause those problems. Check for leaks and if a repair is made I also recommend a termistat.

check overflow jug for other sensor

There could be air in the system and a leak that will eventually cause an overheat condition.

The recovery tank for the antifreeze has a sensor in it to tell when the fluid is low.

Hi!!

Probably your coolant level is low. With motor off and cool, check coolant level. if low, fill it to the MAX COLD mark. DO NOT OVERFILL.

Don't forget to rate this post. Good Luck!!!

Inside the coolant reserve tank there is a sensor for coolant level.


Over time,this sensor can get stick.


Inspect the coolant reserve tank for crack or leak.

Locate the coolant level switch/sensor and soak it in clean warm water.

Make sure it's free to move up and down the float path.

Top off the coolant tank with coolant only.

the coolant temp sensor is located on the right side of the cyl head its small under by the upper rad hose 13mm socket removes it after u take the small connector of,make sure the car is cold coolant will come out when u remove it,,,,check the connector too for corrosion,by only saturn sensor the cheap autozone and aftermarket ones dont read right and give you the same problem as the old bad one

If the temp gauge is reading normal, the lights are flashing, and the coolant level is full, the level sensor in the coolant bottle is the problem. I'm a service consultant for a Saturn dealer and I've run across this many times.

i would replace the sensor located in over flow/fill tank its a common problem

i think the senser is stuck. i would give that bottle a little smack.like the fonz