A professional diagnosis will reveal the true cause. Although it is often said to inflate your tires to the Max. The manufacture's air pressure recommendation is usually the best air pressure setting, specific for the needs of your car. Another common misconception is that the manufacture lists the pressure that will help the ride fell smoother, not so. The manufacture's specifications figure in the big picture, weight load, wear, performance as well as ride.
Proper inflation is critical for optimum performance and mileage.
With that fact in mind it is important not to forget that tires lose air pressure. Reasons for air pressure loss Normally, air pressure loss is about 1 psi per month. This is a sidewall separation. If not replaced this can become a serious hazard. Also, out of balance tires can create a similar effect though the pattern is tighter.