I CANT THANK OF ANYTHING BUT HERE ARE SOME THINGS YOU NEED TO HAVE THEM LOOK AT BEFORE IT IS OUT OF WARRANTY. THE SPRING SEATS CRACK OR BRAKE ALL THE TIME THE UPPER ENGINE MOUNT OR DOG BONE MOUNT HAVE THE A/C SERVICE SAY IT IS NOT COOLING IF YOU HAVE TELL THEM IT STILL IS NOT COOLING SEE IF THE EVAPORATOR IS BAD IF IT IS TELL THEM TO PUT A POLLEN FILLTER ON IT IS ABOUT 50.00 FOR THE KIT. YOU HAVE A TURBO SEE IF YOU HAVE ANY OIL LEAKS ON THE CAR TURBO RETURN LINE, REAR MAIN SEAL OR CV BOOTS. IT IS ALSO A GOOD IDEA TO TELL THEM THE CHECK ENDINE LIKE COME ON AND OFF AND SEE IF THEY FIND ANYTHING. IF YOU DO ANY OF THIS MAKE SURE YOU TELL THEM WHEN THEY ARE WRITTING THE TICKET. GOOD LUCK