I purchased this throttle body after having rough idle issues on my wife's 2006 Ford Expedition with the 3v 5.4. I bolted the unit on, rough idle continued, put my old throttle body back on the truck and changed the VCTs and all other timing sensors. This fixed my problem but autozone would not return the item since I did bolt the unit to the truck. This throttle body is in new condition with less than 15 minutes of run time on it. My loss is your gain. Comes in manufacturers box and can provide receipt for proof of purchase and date, also has some warranty information however it may not be valid unless a name transfer is an option. Let me know if you have any questions about this item.

Thanks

Steve