Answered my own question. There's a slot in the cover near the front (firewall side). Stick a standard (flat) screw driver in 1/2" and pull back towards the driver seat. The cover should come off when you pull. One more reason to carry tools in your vehicle at all times. I was cursing at the engineer who designed this and I was 6' from my workbench and 30' from my computer.
The 2008 Ford Explorer has 12 valves.
The 2008 Ford Explorer has a V6 engine.
The 2008 Ford Explorer is a gas-powered vehicle.
The 2008 Ford Explorer has a 5-speed automatic.
The 2008 Ford Explorer has single overhead cam (SOHC).
The 2008 Ford Explorer's turning circle is 36.8 ft..
The 2008 Ford Explorer runs on regular unleaded.
The 2008 Ford Explorer has a 28.2 degrees angle of approach.
The maximum payload of the 2008 Ford Explorer is 1520 lbs..
The 2008 Ford Explorer is 16 ft. 1.4 in. (193.4 in.) long.
The height of the 2008 Ford Explorer is 6 ft. 0.8 in. (72.8 in.).
The curb weight of the 2008 Ford Explorer is 4436 lbs..