Having problems with your 2003 Chevrolet Impala ?
Pontiac Grand Am 2003 has a knocking sound when I crank it and it gets louder and accelerate. What could this be?
Have your oil checked and make sure there is no coolant in the oil.Also make sure there is plenty of oil in the engine.If you keep driving it it could get worse and more expensive to repair.
Sounds like you have a rod bearing going out. Take it to a reputable garage and ask a mechanic to take a listen to it.
Repair Help & Product Troubleshooting for 2003 Chevrolet Impala
Tips for a great answer:- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.