![]() If the car required all of the O2 sensors (Oxygen Sensors) replaced only to find out that it was MISDIAGNOSED and the catalytic converters needed to be replaced as well. It wasn’t uncommon for this problem to be misdiagnosed as bad oxygen sensors. Multiple misfire codes and damaged catalysts, the dreaded P0420 code for catalyst insufficiency, likely resulted in a hefty repair expense with both front and rear catalysts being damaged from excessive fuel and overheating. If engine misfires were ignored, it could lead to more expensive problems. If the vehicle owner took extra care, most issues were usually avoided. In addition, worn spark plugs needed replacement before the recommended scheduled 100,000 miles maintenance interval. Instead, they used a single four coil assembly that often would short out if the plug wires had too much resistance. The early 2000s models did not have coil-on plugs at first. Unfortunately, it was a 2.04 cylinder with its share of issues, such as misfire.Įngine misfires on the older Ford Escape were often caused due to worn spark plug wires and plugs. If engine oil were not changed frequently, timing components and sludge would build up and restrict the oil sump, which meant a death sentence to the engine. However, this problem was rare if regular maintenance and oil changes were performed every 3,000 miles. Engine NoiseĮngine noise was common on Ford Escapes if the owner waited for 7000 or 10,000 miles between oil changes. If you are looking to buy a first-generation Ford Escape, check for rust. Rust is expected at the lower edge of the door and also on rear quarter panels. The first-generation Ford Escape is over ten years old, and rust is starting to affect most Ford Escapes on the road. Sometimes if the catalyst got real blocked, it would melt the sensor and the hoses. Usually, misfires damage the front catalyst, there is one for each Bank, and they are NOT Cheap to repair! DPFE sensor for the EGR system would trigger the check engine light with code P0401. However, catalyst efficiency codes are hardly ever due to a bad oxygen sensor. Check Engine Light OnĬheck engine light may come on due to codes related to catalyst efficiency. You might also consider checking to see if all misfire TSBs have been performed most of those reprogrammed the PCM. Needless to say, if you go with that much effort, it is recommended to replace coils 1 thru 3 to avoid potential issues in the future. The worst part is when spark plugs need replacement at 100,000 miles the upper intake must be removed to access the number 1, 2, and 3 spark plugs. Multiple Misfire Codes: P0300 P0301-P0306Įngine misfires often occur due to spark plug conditions or coil-on-plug issues-boot failure on the coil on plug or the coil itself being weak or shorted internal. The Hybrid version also struggles with the coolant pump failure. The most common problems with the first generation Ford Escape range from check engine light coming on, engine misfire, oil leaks, transmission to transfer case failure, and blower motor working only on high and rust. ![]()
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