I have check engine light on with a "lean code". 4.0 Liter.It seems to run fine.Spraying the intake manifold does not produce a change in RPM. Can Gary or any other super tech tell me where else I should be looking for this issue? Thanks smitty
I have check engine light on with a "lean code". 4.0 Liter.It seems to run fine.Spraying the intake manifold does not produce a change in RPM. Can Gary or any other super tech tell me where else I should be looking for this issue? Thanks smitty
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