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What would cause my 2000 Lincoln Navigator to shut off when I come from drive to reverse, unless I accelerate immediately? The Lincoln Navigator is a 5.4l engine.

Answers from the Automotive Experts

Amanda J. Pierce, MBA Flip, You may need to have your idle air control valve inspected, or your EGR valve inspected for failure.

Gelina Aquilina, Service Advisor / Mechanic at Hey Flip, it could be anything from a bad electrical ground to a sensor in the transmission. Definitely something you'd want looked at by a mechanic to diagnose.

Helaine Kurot, Owner/Technician at 360 Automotive It could be a wiring issue - possibly a bad ground wire for the fuel pump , something in the wiring harness is tweaking just enough when you shift gears. It could also be a sensor sending out an inaccurate reading. A diagnostic technician should be able to figure it out.

Maryann Croce, Owner at Croce’s Transmission Specialists Flip, About your 2000 Navigator, If there is a check engine light on, you will need to get it checked for a diagnosis. There may be a problem with the transmission (torque converter clutch). This may or may not set a code (many times it doesn't). Another sign of TCC could be stalling instantly. A transmission shop would be able to road test your vehicle to check out your concern. Good luck!

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