I put on new tires on my Kia Optima do I need to get the Timing Belt adjusted?

I put on 2 new tires on my Kia Optima and now I am getting worse gas mileage!! The tires that were replaced were exactly the same size and make. Do I need to have the timing belt looked at and maybe adjusted with new tires?|||good you got 2 new tires. now push your kia to the junkyard|||The timing belt has nothing to do with tires. The tires may need air or an alignment.|||The timing belt has nothing to do with tires or gas mileage. The engine may need tuneup it depends on how many mile are on the car %26amp; if the engine was ever tuned up before|||The timing belt is not related to tires at all...





If you are suddenly getting less gas mileage, check your tire air pressure, sometimes they forget to fill them to proper pressure...usually right at 30 psi on most vehicles.





If that doesn't help, you have other causes for poor mileage, like plugs, wires, fuel filter, air filter, etc...in a remote instance, your timing belt could be worn, you should have it checked anyway...especially if the car has 50,000 or more miles on it.|||huh............If it was someone at tire shop don't go back. My guess that was about when gas went up .50 cents a gallon, we all are getting worse mileage now!!! lol|||The timing belt has nothing to do with getting your tires changed. Make sure the tires are properly inflated. There is a sticker on your car when you open the driver side door. It tells you the proper tire size on your car, and for your spare. It also tells you the recommended air pressure the tires should have. If they are under inflated it will affect your gas mileage.


Other things that will affect your gas mileage are...


Bad plugs, and wires,


Very dirty air filter,


Clogged or stuck PCV valve,and or EGR valve.


Clogged fuel filter,


Dirty fuel injectors.. I recommend putting Lucas fuel injector cleaner in the fuel tank.,


poor quality gas.


Poor driving habits!|||normally, we have to change our tires in the set of four new tires. if you have problem with mileage and higher gas consumption, you must have tune-up your car to the certified mechanic.. and they're the one will change oil and adjust timing belt, and adjust the valve clearance and clean the carburetor. for the best performance your car must be check up twice a year. believe me because im a car mechanic!