Ford 4.0L Index of Articles

The 1991-2010 4.0L Ford Explorer (Mercury Mountaineer) fuel pressure specifications. 1991-1993 Engine KOEO KOER... [read more]

The spark plug is a small and inexpensive ignition system component. Still, it has a pretty tough job to do, considering the extreme engine compression pressures and... [read more]

APPLIES TO: This fuel pump circuit wiring diagram applies to the following vehicles: 1997 4.0L (OHV) Ford Explorer. 1997 4.0L (SOHC) Ford Explorer. The wiring... [read more]

The mass air flow (MAF) sensor is the go-to input sensor your 4.0L Ford Explorer or Mercury Mountaineer's fuel injection computer uses to calculate the amount of air... [read more]

APPLIES TO: This fuel pump circuit wiring diagram applies to the following vehicles: 1996 4.0L Ford Explorer. The wiring diagram includes the following circuits:... [read more]

APPLIES TO: This ignition system circuit wiring diagram applies to the following vehicles: 1996 4.0L (OHV) Ford Explorer. The wiring diagram includes the following... [read more]

APPLIES TO: This fuel pump circuit wiring diagram applies to the following vehicles: 1995 4.0L Ford Explorer. The wiring diagram includes the following circuits:... [read more]

The throttle position sensor (TPS) is a critical component of the engine management system on your 4.0L Ford Explorer (Mercury Mountaineer). Sooner or later, it will fail,... [read more]

APPLIES TO: This fuel pump circuit wiring diagram applies to the following vehicles: 1993, 1994 4.0L Ford Explorer. The wiring diagram includes the following... [read more]

APPLIES TO: This fuel pump circuit wiring diagram applies to the following vehicles: 1998, 1999, 2000, 2001 4.0L (OHV) Ford Explorer. 1998, 1999, 2000, 2001 4.0L... [read more]