Coolant Level Sensor NIGHTMARE!

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06-04-2009, 05:28 AM

#16

ACE1252

Registered User

Join Date: Mar 1999

Location: Kernersville, NC

Posts: 2,063

Quote:

Originally Posted by userchemical

Just my 2 cents but i would NEVER EVER try and fix a leak with "sealant pellets" or any other method, all you're doing plugging up your rad, water pump, thermostat, and everything else.

Hehe this is old, but I just saw it.

I didn't have any leaks at all. The GM service manual says to throw in two of these pellets whenever the system is totally drained.

I did manage to check my coolant sensor. It did have some buildup in it. I have cleaned it out and still have the low coolant light almost every trip. Either my sensor is crap or I may have an electrical issue. I have unplugged it to see if it comes on or flickers...if not, I'll buy a new sensor.

Last edited by ACE1252; 06-04-2009 at 05:48 AM.

06-04-2009, 06:44 AM

#17

DAVE00

Registered User

Join Date: Oct 2004

Location: Houston, TX

Posts: 809

Just pick up a new one from Rockauto.com and save yourself the trouble. Mostlikely cleaning it wont do the trick as they get deposits and build up on the sensor rod and go bad. Poor design by GM.

06-04-2009, 09:13 AM

#18

khojo16

Registered User

Thread Starter

Join Date: Nov 2005

Location: Stratford, NJ

Posts: 459

mine went away after i cleaned the ground contact for the wiring...ended up grounding my MSD box and electric water pump at the same spot, and all has been well ever since

06-05-2009, 08:17 AM

#19

CobraEatr

Registered User

Join Date: Apr 2000

Location: Lynn Haven, FL

Posts: 119

Mine went away after I drained and flushed the coolant. It wasn't low, but the water was over 5 years old and was black. It stunk really bad as well. Once I put in the new stuff I had to top it off again after a few miles of driving. Now the system is full and the light is off.