Jiffy Lube Broke my car! Logan, Utah

 I received a coupon in the mail for $10 off an oil change from Jiffy Lube. I thought it sounded like a good deal, and it was cold outside so I didn't want to do it myself. My husband took the car in for me. They tried to say that all sorts of things were wrong with the car (they rubbed axel grease on the transmission cap and said we needed a full transmission flush). My husband knows better and told them no. However, my car has been MISFIRING ever since we took it there. I KNOW it was something they did. My car has never had problems with this before and it has all new spark plugs, wiring, cables, etc so they must have purposely damaged something since we wouldn't fall for their deception. Plus, they were supposed to look over several points of the car and top off anything that was low. For the most part, they didn't. Don't ever go to Jiffy Lube. These guys will just try to screw you over and try to charge you for things they did to the car. It still cost almost $40 even with the coupon.