When accelerating, there is a loud chirping noise coming from the engine. The exhaust manifolds have warped. Very annoying sound and loss of power. Seems to be a common problem among other owners of the 3.5 eco boost. Very disappointing. Bolts cracked on both sides of the engine, both manifolds need replacing, and exhaust leakage.
When accelerating, there is a loud chirping noise coming from the engine. The exhaust manifolds have warped. Very annoying sound and loss of power. Seems to be a common problem among other owners of the 3.5 eco boost. Very disappointing. Bolts cracked on both sides of the engine, both manifolds need replacing, and exhaust leakage.
- deraeler, Alden, US