How much coolant does a 2001 DuraMAX?
How much coolant does a 2001 DuraMAX? LB7 Duramax Oil & Fluid CapacityFluid/Oil TypeCapacity – QuartsEngine Oil /w Filter10 quartsCoolant /w Auto Trans. /w Manual Trans.See below 20.3 quarts 20.7 quartsAutomatic Transmission Refill: After Overhaul:See Below 7.4 quarts 12.7 quartsZF-6 Manual Transmission6.3 quarts Why is my Duramax water pump leaking coolant? The OEM water pump uses an iron impeller which makes it much more durable than the plastic impeller used on newer models. Instead, over time the seals can deteriorate resulting in lower coolant levels because of coolant loss. This can cause overheating issues. Leaks also reduce pressure, causing the...