RepairSmith offers upfront and competitive pricing. The average cost for GMC Sierra 3500 HD Exhaust Manifold Replacement is $489. Drop it off at our shop and pick it up a few hours later, or save time and have our Delivery mechanics come to you.
You ready for an extremely simple answer? Here it is: the exhaust manifold takes the gases that are emitted from the engine, and sends them to the exhaust. That’s it!Depending on the style of engine, your car may have one or two manifolds.
If it seems like there are a million different weird noises your car can make it’s because there are. But the exhaust manifold noise is usually pretty unique. It sounds like a light tapping, or a clock ticking, and it will often go away once the car has warmed up, which your ears will greatly appreciate.
Hopefully this isn’t new information for you, but you’re supposed to smell the exhaust when you’re outside the car, not inside it. If it’s getting stinky in the cabin, you might have a very impolite exhaust manifold.
Check engine light
Like so many parts of your car, when the exhaust manifold fails, it can cause the check engine light to go on. You remember the last time you ignored the check engine light? You remember what happened? Yeah, thought so.
If you smell exhaust in your car, then the repair is urgent. Those fumes are toxic, and should not be inhaled. Even if you don’t smell exhaust, a malfunctioning manifold can cause deeper issues to your engine, and that is bad.