GMC 5.3: Broken Exhaust Manifold Bolt - Tapping noise that gets quieter as the engine warms up

If you're noticing a tapping noise coming from your engine when it's cold, you may have a broken exhaust manifold bolts. In this video, we'll discuss the symptoms and how to fix the problem.

GMC 5.3: Broken Exhaust Manifold Bolt - Tapping noise that gets quieter as the engine warms up. If you're noticing a tapping noise coming from your engine when it's cold, you may have a broken exhaust manifold bolt.
2003 GMC 5.3 with an exhaust leak at the manifolds. This is a very common problem due to broken bolts

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