No need to remove hose from the expansion tank it will drain back into the radiator. Easy way to purge air in the system is keep expansion cap off and topped off to the full line while running the engine and coming up to temp. Allow truck to come up to normal temp and turn heater on high while the t-stat opens and closes a couple times. While doing this process keep an eye on the gauge to ensure it is not running hot or worse overheating. Do not shut off truck once complete until the expansion pressure cap is returned. Once cap is replaced take it for a ride and make sure temp stays in normal range on gauge.
2005 SE Off Road: JBA LT Silver ceramic coated headers, Cajun B-Pipes with Heavy Metal Cats, Borla Dual SS Cat Back, Uprev Tuned, K&N Air Charger, CSF 3328 Aluminum Radiator, Grille Craft Upper and Lower Grill, Burtman Rear Air Reflector, Manik SS Nerf Bars, Nissan Tow Mirrors, Bilstein HD's, Moog 81085 Rear Coils, AirLift 1000 Rear Springs.