Having problems with your 2004 Chevrolet TrailBlazer ?
Cooling fan pulley is loose even though the four mtg screws are tight,
If the pulley is moving the bearing in the water pump is starting to go bad. Eventually the pump will start leaking.
Repair Help & Product Troubleshooting for 2004 Chevrolet TrailBlazer
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.