2005 K3500 LLY Low Coolant message
I have a 2005 K3500 it has 75098 miles on it last fall I got a low coolant message stopped and topped it off. No problems until last weekend drove about 150 miles stopped for dinner came out restarted teh truck and had the lowcoolant message. stopped at a station got some dexcool opened the cap and coolant started to come out of the overflow. Let the truck cool down refilled the tank. seemed ok. Ran the 150 miles home the temp was 210 like always good heat no temp spikes.
Started the truck to move it over to the garage went to check the level it was a little low went to open the cap and the tank was pressurized.
First thought head gaskets then heard about the EGR cooler any way to easily test the cooler?
Thanks for your help.
cooling system properly bled....
I caught the 3K rpm for 10 sec as well. Was the system properly bled? Can't say for sure; I assumed the work was done properly being that the dealership's trained tech did the work (and he does a bunch of DMax engines). Then again, I can't speak to what GM is training their techs to do. I experienced the same draw down of coolant after a water pump change and an injector swap. Add more coolant after the system has cooled down, and eventually it holds a consistent level and doesn't seem to lose any.
I heard that cracking open the plug on the thermostat cover was supposed to help bleed the air from the system. Live and learn I guess....