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2003 Lincoln Navigator Vehicle Speed Sensor
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beam21dart
New User
Mar 4, 2012, 1:08 PM
Post #1 of 2
(2779 views)
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2003 Lincoln Navigator Vehicle Speed Sensor
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My 2003 Lincoln Navigator 5.4 DOHC will 'only sometimes' not shift into overdrive after the initial start up (about 50% of the time). It will not be in any gear, like if it is in neutral. If I press the O/D button on then off it will shift into O/D, or if I put it in neutral and back into drive it will shift into O/D. Also the doors will not automatically lock until I drive about 4 miles (this happens every time now). All shifting is smooth, and fluid and filter have been maintained. Could this be the vehicle speed sensor? I get no check engine lights and no codes come up.
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nickwarner
Veteran
/ Moderator
Mar 4, 2012, 1:55 PM
Post #2 of 2
(2736 views)
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Re: 2003 Lincoln Navigator Vehicle Speed Sensor
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If it was your speed sensor your speedometer wouldn't work. Trans codes don't always turn on an engine light. You will need a professional scan tool to see the trans codes, voltages and signals that are happening in this to diagnose it.
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