Which signs indicate loose exhaust hangers during a visual inspection?

• A. Movement or sagging of the exhaust pipe and rattling sounds.
• B. A clean, straight exhaust pipe with no movement.
• C. Visible exhaust temperature cracks.
• D. Excessive noise only when starting engine.

Answer: (A)

When checking for loose exhaust hangers, what matters is how the exhaust system sits and moves. The hangers are the supports that hold the pipe in place; if they’re loose, the exhaust can shift, sag, and rattle as the vehicle moves or vibrates. That combination—movement or sagging of the exhaust and a rattling sound—directly signals loose hangers.

A clean, straight exhaust pipe with no movement suggests the hangers are securing the system properly. Visible exhaust temperature cracks point to heat damage or metal fatigue, not looseness of the hangers. Excessive noise only at engine start isn’t a reliable indicator of loose hangers, since it can come from other issues like cold-start behavior or different exhaust problems.