Blinking coolant light

**mainer0311** · 11-12-2008 05:48 AM

My coolant light has been blinking since I bought the car. The coolant gauge has intermittently worked, so I replaced the temp sensor but it didn't fix the problem. The light still blinks and the temp gauge still works when It wants to. The coolant bottle has enough coolant that it shouldn't be on. Could the sensor in the bottle be causing the light to blink? And if it is that how come my gauge doesn't work?

Cooper

**zrowcool** · 11-12-2008 05:54 AM

whats the symbol look like? try topping off the coolant bottle and see if it goes away. wont hurt anything

**mainer0311** · 11-12-2008 06:38 AM

The coolant bottle is topped off and the light still blinks.

This is the light

**mike-2ptzero** · 11-12-2008 07:44 AM

Might want to try pulling the plug off the bottom of the tank and see if another warning light comes up, if not then one of the wires on that harness might be broken.

**mainer0311** · 11-12-2008 07:52 AM

I tired that at one point and the light continued to blink with no additional lights coming on.

So I must have a broken wire going to the sensor on the tank.

Where do those wires end up? I'm thinking it would be easier to run a continuity test instead of having to physically trace the wires.

Cooper

**kovalevandrew** · 11-12-2008 08:00 AM

Thermostat dude, probably stuck, happens all the time. Get it checked out asap.

**mainer0311** · 11-12-2008 08:16 AM

But would a stuck thermostat cause a blinking light?

**kovalevandrew** · 11-12-2008 08:21 AM

Mine was, the light was on all the time, temp gauge was also all over the place.
My radiator was cold to the touch, after the new thermostat(the first time, and second, and 4th and 5th....) it went back to normal. Might want to check that out first. I stopped putting water in mine and the problem went away.

**mike-2ptzero** · 11-12-2008 08:23 AM

Originally Posted by mainer0311

I tired that at one point and the light continued to blink with no additional lights coming on.

So I must have a broken wire going to the sensor on the tank.

Where do those wires end up? I'm thinking it would be easier to run a continuity test instead of having to physically trace the wires.

Cooper

Make sure to do a continuity test on the sensor on the bottom of the tank to see if the sensor is working correctly before you start doing tests on the wires.

**mainer0311** · 11-12-2008 08:34 AM

I guess I'll toss a thermostat in it this weekend along with the other stuff I planed on working on. It sucks being at school away from being able to work on my car.

Any tips on doing the thermostat? It doesn't look to be a simple job but we'll see.

Cooper