How do you change the coolant in a Duramax?
How do you change the coolant in a Duramax?
Start the engine and keep the coolant level topped off. Hold the engine at 2,500 rpm for five minutes, and then allow it to idle for five minutes, topping off as needed. Repeat the cycle until the coolant level no longer drops. Install the cooling system pressure cap.
Why is my Duramax water pump leaking coolant?
The water pump’s coolant-side seal is there to contain this pressure against a spinning shaft. Over time, this seal will wear until it begins to leak coolant. That’s your cue for a need to install a new pump.
What should the pressure be on a Duramax water pump?
Normal cooling system pressure is in the range of 8-10 psi. The water pump’s coolant-side seal is there to contain this pressure against a spinning shaft. Over time, this seal will wear until it begins to leak coolant. That’s your cue for a need to install a new pump.
How much coolant does a 2013 Duramax take?
Seven gallons might sound like a lot of coolant for your 2013 Duramax, but then it’s a big, heavy-duty engine. When your Duramax is due for its first cooling system service at 150,000 miles it will take 3.5 gallons of coolant and 3.5 gallons of distilled water in a 50-50 mixture.
Where does coolant go in a Duramax Diesel?
If it can be determined the coolant loss is from the driver’s side (engine right side) of the engine, the following information should be considered. Leaks from the exhaust gas recirculation (EGR) cooler may allow coolant to pass through the exhaust system and enter the combustion chambers on the right bank cylinders.
Where is the coolant coming from behind my water pump?
It’s not coming from the weep hole. What sort of structure above and behind the water pump could leak coolant? My leak appears to be coming off the back side of the pump housing, but originating above the area that i can see with a mirror.
Can a head gasket failure cause engine coolant loss?
The AERA Technical Committee offers the following information on engine coolant loss on 2002-2016 GM 6.6L Duramax diesel engines. It is important to note that not all instances of coolant loss on these engines is the result of head gasket failure.
What should I do if I lose coolant in my engine?
It is very important to note: If an investigation of loss of engine coolant leads to coolant found in one or multiple cylinders on the right bank, YOU MUST test the EGR cooler for leakage BEFORE attempting any engine repair. The cylinders affected with coolant will depend on which exhaust valves were open at the time of engine shutdown.
