I have an lbz with just under 6k. The past week or I have noticed the glow plug light not lighting up, upon first start up, and engine is cold. Has anyone experienced this? Was wondering if there is a recall, tsb, or reflash for the glow plugs. Or if it is normal, the plugs don't have to heat up do to outside ambient temperature? Also, here an abnormal tick from lower end of engine, form pan area, while engine is idling in park its more noticeable.