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The diagnostic reading for your 99 ford exp said 2 things missed fire 2 and 5 and lean on bank 1 and 2 what does this mean?
Wiki User
∙ 12y ago
this means that 2 and 5 pistons are not getting spark when needed. most likely that 2 and 5 both need a new coil installed
modern engines have a separate coil for each cylander. they cost approx 100 bucks each
Wiki User
∙ 12y ago
The diagnostic codes indicate that cylinders 2 and 5 are misfiring, and there is a lean fuel mixture in both banks 1 and 2. This could be caused by issues such as faulty spark plugs or fuel injectors, vacuum leaks, or a problem with the oxygen sensors. It is recommended to further diagnose and address these specific issues to resolve the engine performance problems.
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