Are my tires causing my car to swerve and follow the cracks?

If you swerve the car back and forth and the sound dissapeers when swerving to the left( reducing the weight on front left tire) this could indicate a wheel bearing problem

Check front tie rods...this is a major safety issue...also probably need alignment or have bad tire (seperarted belt) causing the swerve, and pulling condition...The tie rods are not to expensive to resolve this safety problem...Hope this helps.

Tires have many variables that affect drivability and safety...Depending on how you use your Uplander...like most things...you get what you pay for...It is usually best to stay with original tire size...ie...225/60/R16..(This confirms speedometer accuracy and tire wheelwell clearances). Comparison by mileage warranty will help assure good quality. All season tread pattern is best overall...For best ride quality the Michelin Harmony is hard to beat. Yokohama tires have proven to be great performers, but do not ride as soft as the Michelin...Goodyear design and quality is not the leader as they used to be in the 1980's...still OK but harsh ride and poor performance in slippery weather...Bridgestone is good also, but not as good as the Michelin or Yokohama...You will be pleasantly surprised with either the Michelin or Yokohama...Tire sidewalls are required to show the USDT rating for temperature and treadwear comparison...Last but just as important is tire air pressure...35 lbs psi is best for everyday driving, handling, and tread wear...Hope this helps.

It's a Tyres Monitoring Pressure (TMP) system ECU (Electronic Control Unit) temporary faulty. Run for few miles above 30 mph, and all the temporary faults of Tyres Monitoring Pressure (TMP) system ECU will dissappear themselves. Also you can access & erase the TMP system ECU for all Diagnostic Trouble Codes (DTC) memored, if you will connect a VW / Audi diagnostic equipment to the data link connector of the car.

OEM Tire size is 205/70-15 The Yokohama Avid Touring-S would make an excellent tire for your Oldsmobile. At $65 each they are inexpensive but are a very good tire.

rear bearings , Turn steering wheel side to side to side while driving that will load the bearing on that side see if the noise changes

does it change when you swerve from right to left? when you swerve not hard turn but just slight motion enough to shift wait of car. you have worn out wheel bearings either one side or both. very hard to do at home unless you have a 2 ton press and snap ring pliers. not a fun job. Does the sound have a rotational sound. that would be the first thing to look at how many miles on the car?

possibly 1 of your new tires has a bad belt ,check the airpressure and was it balanced correctly get it back there and have them fix it right

if you look on your drivers side door there is a sticke that will provide you with the reccomended tire size and rating , then you should request a quality tire in that designation. tires like michilin , goodyear , dunlop , general , yokohama are some quality tires.