Add Coolant light keeps coming on..
Add Coolant light keeps coming on.. Like the title says, that damn light keeps coming on, a couple of days ago i turned on the car and took off the radiator cap to add more coolant but then collant level only went downan inch, the reservoir was completely full also. I waited about 15 minutes while revving up to 2000 rpms occassionaly. The temp gauge has also never gone above 210 since the light started coming on 3 weeks ago. Anyone have any advice? Thanks
Mine has not freaked out, yet.
I pulled the sensor when I was doing a flush. The sensor had all kinds of crusty crap in it. I just cleaned it out. From what I have heard on here, that helps also.
I pulled the sensor when I was doing a flush. The sensor had all kinds of crusty crap in it. I just cleaned it out. From what I have heard on here, that helps also.
Yeah I figured it was a sensor since i have kept an eye on the temp gauge mainly and it has acted normal, I'll probably just unplug it or try cleaning it for now. thanks for the help.
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
TECH Senior Member
Joined: Dec 2001
Posts: 5,399
Likes: 3
From: Jacksonville, FL
Sensor is located a few inches below the radiator cap. GM PN is 10096163 and dealership list is $65 so I'd look elsewhere. My car didn't come with one, not sure what year GM took them off the F body.
My bad sensor came out perfectly clean. Here's an interesting article: http://www.wellsmfgcorp.com/pdf/Counterpoint2_2.pdf It does mention that sludge can cause coolant sensors to mis-read, however I think mine was a thermal failure.
I'm assuming our level sensors are probably just a simple on/off temperature sensor set to a very very low temperature? If so, that would be in line with how mine failed. It would start to work when the engine reached a certain temperature. Over time, that "happy" temperature rose to a higher and higher point until it wouldn't work at all.
TECH Apprentice
Joined: Nov 2006
Posts: 377
Likes: 3
From: Greenville S.C.
..now i always check it when i have the hood up 
