2003 Ford Ranger

2003 FORD RANGER

185,000 MILES • 6 CYL • 2WD • AUTOMATIC

KSBLOOR

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I have a 2003 Ford Ranger, I have misfire codes for cylinders 1 and 6. The truck runs sluggish uphill even with the pedal down. Could this be the misfiring causing unused gas to flow through the exhaust clogging the catalytic converter? I have changed the fuel filter, all spark plugs, and the #1 and #6 wires (I ran out of time so I went straight to the problem ones).

Last, where the heck can I get a California approved cat?

Nov 28, 2009 at 7:37 PM

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JACOBANDNICKOLAS

AUTOMOTIVE REPAIR CONTRIBUTOR
110,190 POSTS

First, I would make sure the fuel pressure is good. Here is a how to for cecking it. You will need a pressure gauge. Most parts stores will lend or rent one to you.

https://www.2carpros.com/how_to/how_to_check_fuel_pressure.htm

As far as the converter, it could be plugged. Disconnect it to see if the problem goes away. As far as a CA converter, I would think that most parts stores there would have them. I live in PA, and when I purchase parts, I look them up myself and CA emissions is always an option.

Let me know what you find.

Dec 1, 2009 at 3:38 PM