False "Low Coolant" lamp lit

[Mudbath]

After completing the HG job the only bug is the @#&%*&^ low coolant lamp won't go out!:mad2: Is that the sensor in the overflow/pressure tank? The level is well above the actual sensor...if that is the one making the lamp stay on. If there is a trick to get it off, I am all ears!:hihi:

 

[chefmike]

I had to scrape mine clean on the inside and outside. It started after the level dropped low one time, but continued after it was full. I wondered if leakstop was used at some point that when the sensor dried out it sealed over it?

I havent had an issue since scraping it.

 

[Brooklyn Tow]

Bleed/Burp......And like mike said, "scrap the crud off"......Maybe some oxidation formed on the sensor.....and check the plug.

 

[robzombie4551]

Pull it out and wire brush the oxidation off and you'll be as good as new.

 

[Mudbath]

Sounds like a consensus, remove it and clean it. That should be fairly easy. I was running the GM tabs before doing the HG and yes because it sat dry for a couple of weeks, there maybe some crud impeding it's performance. Thank you all.

 

[buddy]

Its crazy how complicated the low coolant light circuit is. It has its own processor module and its an actual sesnor, not just a switch. A simple float switch at the bottom of the reservoir would have been enough.

 

[Mudbath]

It hasn't been high on my priority list to fix. I am hoping when I get to it that I can take the air filter housing out and unbolt the reservoir from fire wall and leave the cap on, lay it on its back and take the sensor out without having to drain the coolant. Clean it and put it back in and keep my fingers crossed.

 

[625fireman]

It hasn't been high on my priority list to fix. I am hoping when I get to it that I can take the air filter housing out and unbolt the reservoir from fire wall and leave the cap on, lay it on its back and take the sensor out without having to drain the coolant. Clean it and put it back in and keep my fingers crossed.

Just get a buddy to play little dutch boy and put his finger in the hole after you pull it out. okey:

 

[Mudbath]

My wife is Dutch...so I could probably scrounge up an authentic dutch boy. MY son perhaps

 

[NVW]

How far are you from Peace River, the "Real Deal" resides there.

 

[Mudbath]

Just east of Calgary in Strathmore. What's the "Real Deal"? I do have some relatives in Peace River.

 

[NVW]

Simon, AKA, bison, he's right from Holland.

 

[Michaeljp86]

My truck has the low coolant light come on and off as it pleases. I heard years ago to clean it and just never have.