Having problems with your 2006 Ford Expedition XLT ?
Engine light on
\015 Error Code PO128\015
That calls for a bad thermostat
Repair Help & Product Troubleshooting for 2006 Ford Expedition XLT
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.