O2 Oxygen Sensor Upstream Downstream for Ford Escape (2007-2008) 3.0L

Direct-Fit Upstream & Downstream O2 Sensor Kit for 2007-2008 Ford Escape (CD2)

What it Does: This 4-piece oxygen sensor kit measures pre- and post-catalyst exhaust oxygen on the 2007-2008 Ford Escape (CD2) 3.0L Duratec V6 to regulate fuel trims and verify emissions efficiency.

The Stock Ford Escape Sensor Failure

Over high mileage, factory oxygen sensors on the CD2 chassis equipped with the 3.0L Duratec V6 suffer from severe thermal cycling, carbon fouling, and internal heater circuit burnout. As the zirconia element degrades, voltage switching slows and skews Bank 1 and Bank 2 fuel trims. This sensor latency forces open-loop rich operation, triggering P0135, P0155, or P0171/P0174 fault codes while accelerating catalytic converter overheating.

Common Symptoms of a Failing OEM Oxygen Sensor

• Check Engine Light / DTCs: Heater or slow-response faults like P0135, P0141, P0155, and trim codes P0171/P0174.
• Fuel Economy Drop: Delayed voltage feedback causes rich fuel pulse widths and throttle hesitation.
• Emissions Failure: Inaccurate downstream readings trigger false P0420/P0430 codes or mask catalyst degradation.

The Direct-Fit Zirconia Sensor Solution

Replacing all four sensors as a matched set restores rapid closed-loop feedback across both exhaust banks of the 3.0L Duratec V6. Each direct-fit unit features a fast-acting zirconia ceramic element, laser-welded stainless steel housing, and a calibrated internal heater circuit for rapid light-off. Built with factory-spec wire harnesses and weatherproof OEM connectors, these sensors install directly into stock exhaust bungs without cutting or splicing.

What's Included

• 2 Upstream Oxygen Sensors
• 2 Downstream Oxygen Sensors

Technical Specifications

Compatibility

• 2007 Ford Escape 3.0L
• 2008 Ford Escape 3.0L

Frequently Asked Questions & Fitment Warnings

Does this fit the CD2 Escape?

Yes. Direct fit for the 2007-2008 Ford Escape equipped with the 3.0L Duratec V6 engine. Excludes 2.3L 4-cylinder and Hybrid engines; confirm engine before ordering.

Will this clear P0135/P0155 or P0420/P0430 codes?

Yes, for sensor faults. New upstream and downstream sensors resolve P0135/P0155 heater and slow-response codes, though clearing P0420/P0430 still requires intact catalysts.

Is wire splicing required for installation?

No. Each sensor includes factory-matched plugs; clean the M18x1.5 bung threads and torque to spec before clearing codes.

The Ford Precision Standard

Engineered for accurate ECU communication and closed-loop fuel control, this matched kit restores emissions compliance and CEL-free operation on your CD2 Escape. Balanced feedback protects your 3.0L Duratec V6 and catalysts.