Why is my coolant light going on and off?

Why is my coolant light going on and off?

If the coolant level indicator, turns on and off for no real reason this means that your car’s sensors have failed. A malfunctioned coolant sensor may lead to a diminution in fuel efficiency or it may even lead to improper emission readings. The reason behind such defective sensor would be a probable loose connection.

What would cause the low coolant light to come on?

The most common reason for the coolant light to become illuminated is simply that the coolant level is too low. Low coolant levels are usually caused by leaks, either in the reservoir or somewhere in the lines. These leaks can be a serious problem, as they’re not easily diagnosed and easily fixed.

Why does my coolant light keep flashing red?

If the coolant red light is flashing, then that means that a sensor is not responding to the computer system at that time. Check the coolant temperature sensor, and the coolant level sensor and make sure that they are plugged in. Remove the harness to them and check the sensor for resistance.

What was the flashing red light on the dash while driving?

Enter your ride HERE to be a part of JUNE’s Ride of the Month Challenge! Odd thing happened while driving today. This little red light started flashing above the temp gauge. It didn’t seem to affect the driving of the Jeep though. I got parked and turned the Jeep off and then started it again and it hasn’t shown up since.

What does a crack in the coolant light mean?

Your coolant light might be signs of a more major engine problem. When you get a crack in the block or the intake gasket you will leak coolant and oil, usually slowly at first. You may not notice the difference at first, thinking that your tank is full. A repair to a cracked engine block or head gasket is an expensive repair.

What does the red warning light mean on a VW Beetle?

The red flashing on startup means the car is slightly low on coolant, the heat of the engine is expanding the coolant and the level goes over the minimum in the coolant bottle and turns the flashing red light off.