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Ford Explorer Sport Trac Problems

Rough Idle and Stalling on Ford Explorer Sport Trac

Problem Description and Possible Solution

The Ford Explorer Sport Trac is known for a rough idle, engine stalling, loss of power, and misfires, accompanied by the check engine light.

The intake manifold O-ring gaskets commonly leak, which creates a large vacuum leak. This vacuum leak causes unmetered air to enter the engine, and the fuel system becomes insufficient to compensate for the large amount of air reaching the engine. 

Replacing the intake manifold gaskets corrects this concern.

(21 people reported this problem)

Ford Explorer Sport Trac Vehicles With This Problem

RepairPal Verified
Average mileage: 87,493 (30,000–165,000)
Engine affected: 4.0L V6
9 model years affected: 2001, 2002, 2003, 2004, more2005, 2007, 2008, 2009, 2010
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Viewing 1-6 of 6 comments
check engine light on, lean mixture banks 1 an 2. Found leaking hose for the PCV system at top front of engine,near upper raditor hose connection. It is a 90 degree angled 1/2 inch hose 3 x3 inches long. Rubber deteriorated from age. Found 3 more at salvage yard with similar problem. This is on a 4.0 v6 engine, Ford Eplorer, Sport trac, and Ranger that use this motor.
2016, I WAS GOING UP A BRIDGE, AND THE CHECK ENGINE LIGHT CAME ON. IMMEDIATELY I PULLED OVER. I HAD IT TOWED TO THE FORD DEALER, WHERE I BOUGHT IT WITH 18,000 MLES ON IT IN 2008, I HAD FORD MAINTAIN THE TRUCK EXCLUSIVELY FROM 2008 TO 2013... THEY RAN SIAGNOSTICS AND SAID I HAD CATASTROPHIC ENGIN FAILURE. COSTS FOR A NEW ENGINE, WITHOUT LABOR, WAS 5,000 DOLLARS.
I HAD A JUNKYARD ENGINE PUT IN AT A COST OF PARTS 600 DOLLARS.PLUST A NEW RADIATOR, AND BATERY. PLUST LABOR ABOUT 700 DOLLARS.
MY MAJOR COMPLAINT IS THAT THEY KNEW ABOUT THIS PROBLEM YEARS BEFORE I BOUGHT THE CAR., AND COULD OF FIXED THE PROBLEM BY UPGRADING THE PLASTIC THERMOSTAT HOUSING TO A METAL HOUSING, AT MINIMAL COST.
Car stalls out and looses all power under normal driving conditions has done it 3 times in last 6 months then drives fine.