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2005 Ford Ranger P0300 Codes & A/C problems

Tiny
BBG
  • MEMBER
  • 2005 FORD RANGER
  • 4 CYL
  • 2WD
  • MANUAL
  • 215,000 MILES
We have a 2005 Ford Ranger with the check engine light flashing. We changed the oil, plugs and wires and the light went off for a day. It still runs rough and the A/C runs but does not cool all the time. Any suggestions where to begin?
Tuesday, August 3rd, 2010 AT 1:34 PM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Look vacuum leaks and also the for the AC the orifice tube blocked off due to ice.
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Tuesday, August 3rd, 2010 AT 4:10 PM
Tiny
BBG
  • MEMBER
  • 2 POSTS
After changing plugs, wires, oil, oil and air filter, our 05 Ford Ranger was still running rough and getting P0300's codes. Since not all were malfunctioning we decided to try replacing the coil. When we replaced the coil we noticed the firing order was different. We installed it and the truck runs great so far! We bought the truck from a fleet and its last tuneup was done by the Ford Dealership at 210,000 miles (215,000 now). P.S. Thank you rasmataz for responding.
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Wednesday, August 4th, 2010 AT 3:42 PM

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