Lincoln Navigator: Flashing Check Engine Light Diagnosis

A flashing check engine light is your Lincoln Navigator’s way of saying “I have a serious problem, don’t ignore me”. Most of the time, that serious problem is a misfire.  This flashing light should not be ignored.  When your engine is misfiring, it is dumping raw fuel into the exhaust.  This raw fuel can detonate, … Read moreLincoln Navigator: Flashing Check Engine Light Diagnosis

Lincoln Navigator: Flashing Check Engine Light Diagnosis

A flashing check engine light is your Lincoln Navigator’s way of saying “I have a serious problem, don’t ignore me”. Most of the time, that serious problem is a misfire.  This flashing light should not be ignored.  When your engine is misfiring, it is dumping raw fuel into the exhaust.  This raw fuel can detonate, … Read moreLincoln Navigator: Flashing Check Engine Light Diagnosis

Lincoln Navigator Troubleshooting:  Squeaky Brakes

  Your Lincoln Navigator‘s braking system is designed to handle thousands of miles of braking with no intervention from you.  When its brakes begin to squeak, they are telling you that they need some attention. The most typical cause of squeaky brakes are the brake pads themselves, but there are other issues that can cause … Read moreLincoln Navigator Troubleshooting:  Squeaky Brakes

Lincoln Navigator P0405:  EGR Sensor “A” → Circuit Low

  P0405 is a generic OBDII trouble code.  It deals with the signal coming from the EGR system.  Since it is a generic code, it has the same meaning for the Lincoln Navigator as it would any other vehicle.   The EGR system allows a certain amount of the Navigator’s exhaust to re-enter the combustion chamber, … Read moreLincoln Navigator P0405:  EGR Sensor “A” → Circuit Low

Lincoln Navigator: Warm Up Catalyst Efficiency → Below Threshold (Bank2)

P0431 is a standard OBDII trouble code, which means that it has the same meaning for the Lincoln Navigator as it would any other vehicle.  It is closely related to P0430 (which is one of the most popular OBDII codes). Warm Up Catalyst Efficiency → Below Threshold (Bank 2) When it’s the only trouble code … Read moreLincoln Navigator: Warm Up Catalyst Efficiency → Below Threshold (Bank2)

Lincoln Navigator: Warm Up Catalyst Efficiency → Below Threshold (Bank 1)

P0421 is a generic OBDII trouble code.  It has the same meaning for the Lincoln Navigator as it would any other vehicle.  It is closely related to P0420 (which is the most popular OBD code). Warm Up Catalyst Efficiency → Below Threshold (Bank 1) When it’s the only trouble code present, P0421 will typically not … Read moreLincoln Navigator: Warm Up Catalyst Efficiency → Below Threshold (Bank 1)