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you have a vacuum leak. defrost is the default when a vacuum leak is present.
The 2005 Nissan Titan has a V8 engine.
The 2005 Nissan Titan has 32 valves.
The 2005 Nissan Titan is a gas-powered vehicle.
Check the following.......... 1. Vacuum leak, broken vacuum line or disconnected vacuum line. 2. A/C - heater inside car door operation.. 3. A/C - heater controller..
The 2005 Nissan Titan is 18 ft. 8.2 in. (224.2 in.) long.
The height of the 2005 Nissan Titan is 6 ft. 3 in. (75 in.).
The 2005 Nissan Titan runs on regular unleaded.
The 2005 Nissan Titan has double overhead cam (DOHC).
The 2005 Nissan Titan's turning circle is 45.6 ft..
The 2005 Nissan Titan has a 5-speed shiftable automatic.
The 2005 Nissan Titan has 33.0 in. of rear leg room.