I have a 09 Auto V6 with 184,000 miles and I'm trying to find out if there is any maintenance items that I've missed as I just recently got the car. So far I've done the oil, 1x of 3x transmission fluid change, pcv, air filter, cabin filter and spark plugs. Alternator belt looks good and timing belt, water pump and components were changed with Gates 76k ago. I'm currently trying to tackle an issue with the car and was wondering what if any maintenance I'm missing. As for the TB I'm seeing that it is not recommended. However, does the IAC valve or maf sensor typically get cleaned?