these last couple days it seems like my truck is loading up?.?.. only on the first startup of the day after sitting all night.. idk if it because of the cold, its been in the twenties overnight into the morning. it goes to its normal idle on startup about tht 1500 rpms but then jumps way up to 1900 almost. i dont remember it doing that last winter. 2004 5.4 it stays in garage over night. any opinions?? thanks

 

wel it didnt do it this morning so idk whats goin on