Question about 1996 Ford Explorer
I have a 1996 Ford Explore, replaced the sensors, tuned it up, rebuild transmission. When I am at the light it just cuts off, sometimes backing out of the drive way it cuts off, it surges. Could it be the cadillac converter. Ofcourse people around here are stealing them off the cars.
96 explorer code po 420. how do i fix
Posted on Aug 06, 2011
Which sensors have you replaced? How many miles on your vehicle? You can rent a scanner from your local Kragen/Schucks/O'Reilly or Pep boys or Auto Zone. Pull the codes and you can usually find the definition online. does it have loss of power under acceleration or load (going up a slight to moderate hill. or with it loaded down)? If you have an infrared Thermometer you can check the temp. of the Catalytic converter(s) as well. the front of them should slightly cooler then the rear (within about 100-150 degrees) It the outlet temp. is 200 or more degrees, that is an indication that the vehicle is running rich and the Cat is only symptom of a larger problem. It could also be the muffler itself. if the internal baffling has come apart and is plugged it will cause loss of power and stalling. Use a vacuum guage on an intake manifold vacuum port. such as the power brake booster. normal vacuum is between 18-22 in. Hg. (Inches of Mercury) anything lower or dropping vacuum is excessive back pressure in the engine. Good Luck!
Posted on Oct 14, 2009
I would take it to get it tested some places will do it free, Schuck's will and some other parts stores, also I would get a diagnostics done on it. Then they will give you the code and the meaning for it.
Posted on Dec 29, 2008
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Posted on Jan 02, 2017
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