ENG RUNNING ROUGH PULLED OUT SPARK PLUGS AMP ...

1997 Ford F-150

Tiny

wayne young

February, 23, 2013 AT 3:33 PM

Eng running rough pulled out spark plugs & oxygen sencer because eng light never comes on. Both are cherry red, looks like lean cond, but asking what else could cause this problem also checked for vacume leaks but found none?

FOUND 901 RELATED QUESTIONS

1 Answer

Tiny

ASEMaster6371

February, 23, 2013 AT 4:04 PM

Start with basics, compression, fuel pressure and spark.

You need to check the long term trims to see if it is running lean

Roy

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