Your Hummer is built to handle a lot of tough off-road and extreme weather conditions -- but even the hardiest Hummer head gasket will not be able to escape a major engine overheating episode unscathed. When your cooling system overheats, the engine temperatures skyrocket. At that point, the metal in the cylinder head will warp and the gasket will be "blown." The head gasket is located on top of the engine, and it seals the very top component of the engine (the head) to the rest of the engine. A blown gasket can lead total engine destruction if the coolant leaks into the engine, so the problem must be immediately addressed when you see the typical symptoms of a blown head gasket. That can include the tell-tale white plume of smoke, oil in the coolant and coolant in the oil. The new vehicles on the market that are made with all-aluminum and bi-metal engines are more prone to gasket damage than the all-iron engines used in older models. These new metals are less durable and more likely to expand and warp under heat pressure. The problem with replacing a head gasket is that it is usually smart to do a lot of other engine repairs while you are at it, including a valve job, resurfacing the cylinder head and checking the head for cracks. To get started, first order a quality Hummer head gasket from our site.
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