Most popular

What to do if your radiator coolant is bleeding?

What to do if your radiator coolant is bleeding?

No bleeder valves. Make sure the vehicle is level, if the filler neck is at a low point compared to rest of system it could be difficult to purge the air from system. As noted, after driving the vehicle to a complete normal operating temp, check the recovery tank the next day and top off.

Where is the thermostat on a Silverado Sierra?

I heard the thermostat is on engine side near the lower hose (4.3) so with it mounted that low whats the best way to fill the radiator back up and get the lest amount of air.

Why is the coolant coming out of my radiator?

Turns out the pump is running pretty dry. The top radiator hose is warm, but the bottom hose going straight to the pump is ambient temp, telling me the pump isn’t getting any coolant to throw around, hence the squeeeeeeling. I searched around and couldn’t find any bleeder screws?? How the heck do I get the air out of this?

What to do when your coolant bleeds out?

Anyway, what I generally do when I’m refilling a system (even if it has bleeder screws) is to fill the radiator to the top until it quits draining down. Then, take the upper radiator hose and twist/crush it until I get a bunch of air bubbles (starting as close to the thermostat housing as possible).

How does the cooling system work on a Chevy truck?

SilveradoSierra.com • Cooling system question on 5.3, when does thermostat open? : Vortec 5300 5.3L V8 The water pump pumps coolant out of the lower two ports on its back side and into the block. Coolant circulates through the engine block… and through the cylinder heads.

What to do when coolant is leaking from Radiator?

Leave the cap off of the reservoir while you do it. Lift the hose end and fill it from there until coolant starts to overflow from the radiator neck. Once you do that, add a little extra coolant to the reservoir and keep an eye on it for a few miles until all of the air gets out of the system.

How does a radiator bleed and surge tank work?

A radiator bleed or vent port located at the top of the radiator connects to the surge tank. Any air or steam in the system, especially that coming from the engine’s steam tubes, will naturally seek the highest point and will therefore exit the radiator via this port and travel to the surge tank.

Author Image
Ruth Doyle