WebFeb 20, 2024 · Product Spotlight: Duramax Radiator Coolant Surge Tanks Merchant Automotive 8.43K subscribers Subscribe 22K views 5 years ago Purchase Duramax … WebJan 9, 2024 · After reading the manual and other sources the coolant on the overflow side is supposed to have coolant in it. Quote: "On pickup models slowly add coolant so it goes into the non-pressurized side (fender side) of the coolant coolant surge tank until it reaches one-third of the capacity." page 10-23 in the 2013 Duramax Diesel Supplement.
pressure in the coolant system DuramaxDiesels.com
WebMar 10, 2012 · It is normal for the coolant level to expand and retract with temperature of the engine. The expansion tank is designed to fluctuate but when stone cold the level should not go lower than the FULL COLD mark on the tank. 2011 Denali HD3500 CCSB SRW. 4x4man Registered Joined Sep 2, 2003 836 Posts Discussion Starter · #3 · Mar 6, 2012 WebMar 21, 2011 · It's not a reservoir. It's a De-Gas tank for venting off pressure. The cap has a valve in it. When the truck gets hot, more coolant goes into the tank and then it lets the pressure escape from the cap. The level will fluctuate depending on coolant temp. theramex companies house
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WebOct 16, 2024 · This type of heater replaces the existing core plug, also commonly referred to as the frost plug or freeze plug, and directly heats coolant within the engine using an element that sits in the... WebEN-48974-20, was shipped essential to dealers to diagnose EGR cooler engine coolant leaks on all 2010-2011 Duramax™ 6.6L engines equipped with multiple cooler EGR system. This supplement gives the test adapter set a larger variety of sizes to accommodate the newer style coolers that have multiple WebOct 16, 2024 · It isn't cheap but it is cheaper than diving into the engine after head gaskets that you don't need. If the fans come on at 70 mph in 20 degree weather then you have a coolant or air flow problem. The next thing I would do is look at the cooling stack to see if it is full of hay, bugs or a plastic bag. signs head gasket is blown