Help! Low Water Light Stays On but Water Levels are Normal

[Outlaw187]

Hi all, I am having a problem with my cooling system. For the last 2 weeks or so, my Low Water light comes on and stays on but the water levels remain the same. I know the water is being pumped because the return hose gets hot. I took it in to a mechanic shop but even they could not figure out why this was happening. I have noticed that the Low Water light comes on when I am stuck in traffic, rev the engine very high, or have been driving for a long time. However, when I turn on my front defog it takes longer for the Low Water light to come on. I am guessing and hoping that it is only a bad sensor. Can any of you help me why the light is coming on and how to fix it? Have any of you had this problem at all? Thank U - In Dire Need of Help -

[BrdWAtti2d]

Yea that's a common problem. The sensor is full of crud and just needs to be cleaned. Here's a pic from Rob's (ShoeBox) site to where it's located. Take it off, clean the crud out of it and you'll be golden.

[Rob B (shoebox)]

... Have any of you had this problem at all? Thank U - In Dire Need of Help -

It is one of the most common problems on a 4th gen. Cleaning it or a new sensor should take care of it.

[Blazer]

Cleaning will not make it happen I have went throw about 6 off them. They are junk an the price went up on them. They do not like my car.
Blazer

[JPack]

They don't like mine either lol. I just deal with the stupid light.

[Jeff_in_Atl]

Taking the light bulb out of the dash will fix it forever.

[Rob B (shoebox)]

Cleaning mine helped. I still have the original sensor.

[Injuneer]

Taking the light bulb out of the dash will fix it forever.

If you simply pull the harness connector off the sensor, the light will go out.

Guess I got lucky.... 13 years on the original part, now mounted on my Griffin radiator.

[BrdWAtti2d]

Cleaning mine worked fine and it had about 1/8" of crud built up on it. Still on the original as well. Guess I got lucky too, worth a shot and it's easy.

[Jeff_in_Atl]

Mine had nothing on it but some rust when it quit working. I tried cleaning it with everything including a wire brush and it wouldnt work again. I had to buy another one. I'm on #3 now.