Can't find exterior temperature gauge in 2008 Lincoln Nav. L

Blend Door Actuator issue.

https://www.google.com/search?q=2008+lincoln+navigator+blend+door+actuator

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Lincoln nav.
well is the engine the same size ?
it sold new with 1 of 3 engines
4.6 and 5.4, 2v and 4v. 4v is DOHC twincam head
so is 3 unique engines there, day 1. new.
so of both cars have same engine ,
and the parts counter told me it is same on 5.4L
so did rockauto.com,
if still OEM stock that is, some 3rd party sold parts might say different.
vast those.

check your antenna

Located in the central junction box . Fuse F1.13 10amp. CJB - under right side of dash .

F1.8 10 Electronic Automatic Temperature Control (EATC) module (19980), Exterior

rear view mirror, left, Exterior rear view mirror, right

F1.5 7.5 Powertrain Control Module (PCM) (12A650), Deactivator switch, Third row

folding seat relay, left, Third row folding seat relay, right, Power lift gate

module, Brake pedal position switch (13480), Sunload sensor (19E663),

Clock (15000), Function selector switch assembly, front, Electronic Automatic

Temperature Control (EATC) module (19980). Don't think you have a fuse problem ! More then likely the HVAC control module is bad , they do go bad
Don't

Make SURE That Cooling System Is FULL
Have Actual Engine Temperature Compared To What Coolant Temperature Sensor Indicates

Could be the gauge in the dash, the temp sensor on the engine, or the thermostat is not closing to warm up the engine.

Check that the two hoses of the heater core at the firewall are getting hot. If both are not hot, then the heater core is plugged up. Try to flush in this case to free up sediment. If that doesn't work, maybe a new heater core is required, assuming that the blend door is operating correctly, and diverting hot air to the defrost or front vents.

Here is a link to your owners manual, check section marked Roadside Emergence's (PAGE 257) for fuse box diagram.

http://www.motorcraftservice.com/pubs/content/~WO3NAV/~MUS~LEN/41/03navog3e.pdf

Consult or purchase the repair manual at the auto parts store.
Most are located in front on drivers side.
Be sure to push in first with hose and hold down retainer and pull hose out.