ENGINE DATA
Engine
4.0L SOHC V6
engine
4.6L 3V V8
engine
Cubic inches
245
281
Required fuel
87 octane
87 octane
Firing order
1-4-2-5-3-6
1-3-7-2-6-5-4-8
Ignition system
EDIS
Coil on Plug
Spark plug gap
0.052–0.056 inch
(1.32–1.42 mm)
0.039–0.043 inch
(1.0–1.1mm)
Compression ratio
9.7:1
9.8:1
Engine drivebelt routing
•
4.0L V6 Engine
•
4.6L V8 Engine
2009 Mountaineer
(mnt)
Owners Guide, 2nd Printing
USA
(fus)
Maintenance and Specifications
377