Shop OEM General Motors Part # 12639886. Exhaust Manifold Heat Shield (Rear). 2.5 LITER. Exhaust Manifold Heat Shield - Repair or Replace A tinny ticking, buzzing, or rattling

Cover - Interior Manifold. Exhaust Manifold Heat Shield.
A Heat reflective barrier to prevent items from coming in contact with the hot Exhaust Manifold.

Exhaust Manifold Heat Shield

Fits Impala

2.5 LITER.
Exhaust Manifold Heat Shield - Repair or Replace
A tinny ticking, buzzing, or rattling noise that sounds like it's coming from under your may be a bent or rusted exhaust heat shield.