Dryer is acting up.

so, it hasnt been used in about 2 months.  it sat out in a cold garage.  but was back up to 'room temp' when we hooked it up.  the gas line is secure.  the venting is proper.  the dryer's level.   after turning it on, not much has happened.  a faint 'beeping' signal comes out of it every few seconds or so, and signal lasts about 2 secs.  the dryer will tumble and kinda gets a weak luke-warm.  i heard this clicking (blower motor i think) as if it were a rotating clicking noise.  then i heard what sounded like a piece of plastic drop.  then poof! the blower kicked on and the dryer started crankin'! working great.  thought maybe something needed to settle.   note* i did have this dryer on its side while moving it in the back of my pick-up truck.  (which was covered from the elements w/ a cap & laid on soft blankets).* after several uses some serious noises started coming out of it.  a severe clicking rotating plastic thumping, sounded like hard plastics banging, clicking rotating, hard to explain.. i reset the dryer.  now it starts up, and just rotates, blower never kicks on.  doesnt really get hot, back to a weak luke-warm.  (i threw a wet towel in there..nothing, no heat/blower)  nothing going through the vent either.  so..i was thinking about pulling the back off, but figured i'd ask you guys first. also, do you think it's worth it to call in a Sears professional?  costs involved?   yeah man, any help would be appreciated, the thing's out of warranty, and well..i need a working dryer, full household.  laundry piles up!   - thx, Angelo