While replacing my motor mounts the smurf sat in the driveway for about 5 weeks. Upon re-entry to drive it smelled musty in there. Figured it was from the humidity and being closed up for so long. The musty has since dissipated, but I have a chemical smell in the mornings. Opening the windows or vents / fan dissipates the smell fairly quickly. The carpet is not moist, the a/c blows cold, coolant level & color is good, Temp gauge does not bounce like it would if an air bubble was in the system. Any thoughts? I can't place the smell. She's a 96 Cougar 4.6 stock. Thanks.