[Stoneage_Caddy]

thats easy , dont ever take the car to jiffy lube .....i lost a transmission to those bastards ....there clueless ...

i would check the connector at the blower motor , they come loose from time to time and simply need shoved back in after a little cleaning

as for the chug and loss of power it could be a host of things , do you have a "check engine" light?