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2003 ford explorer p0420 code repair
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asked
Apr 5, 2017
by
tom
6 cly automatic xlt shows code p0420 need to cure proble4m for emissions testing
Vehicle:
2003 ford explorer xlt 6 cyl
p0420
ford
6cyl
explorer
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Apr 7, 2017
by
Carguy1
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Hi there
Most of the time when you have this code you have to replace the catalytic converter to resolve it. This code means the converter is no longer working like it should to clean the exhaust. Sometimes a bad rear O2 sensor can cause this or an exhaust leak as well. This code is specifically for the bank 1 converter.
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