Question about 2001 Ford Expedition
Changed plugs and now the engine runs rough when cold. After it warms up it runs fine. I checked all of the electrical connections to the injectors and COPs. It seems to stumble under light load. It finally gave me a code p0300 this morning. I plan on cleaning the MAF tonight and check for a vacuum leak. Any other ideas?
Make sure you have the plugs gapped properly this can also cause this problem
Posted on Dec 01, 2008
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Posted on Jan 02, 2017
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