Question about 2003 Ford Crown Victoria
Sounds like a misfire. take your car to the auto parts and have the hook up their obd II scanner . if its is a misfire check the plugs olso meke sure there is no water. i own a 98 vic with a misfire it was water and turns out my intake manifold need it to be replace. iif not check the coil. good luck
Posted on Apr 28, 2009
Also if you want to test the catalytic converter before you replace it. To do this remove the Oxygen Sensor thats located after the converter and hook up a pressure gauge to the whole and check for pressure. If there is any pressure build up then your system is clogged after the converter, either in the exhaust pipes on in the muffler.
If there is no pressure build up reinstall the O2 sensor and remove the O2 sensor before the catalytic converter. Insert a pressure gauge in the whole and if there is pressure build up then replace the converter, if there is no pressure build up then the exhaust system seems fine.
Posted on Apr 23, 2009
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Posted on Jan 02, 2017
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