For the most part, automatic transmissions are exactly that; automatic. However, there are a couple of components that require adjustment from time to time, to keep your transmission shifting like it should. At Harold's Used Auto Parts Inc in Philadelphia, our team of expert mechanics knows how to do just that.

Most modern transmissions are electronically controlled, but there are still many vehicles on the road today that utilize linkages and vacuum systems to handle upshifting and downshifting under acceleration. Periodically, these components must be adjusted, to achieve smooth shifting and shifting at the correct time. Symptoms of poorly adjusted linkages and vacuum modules include hard shifting, shifting too soon, and shifting too late. The consequences of a bad adjustment are poor gas mileage, bad ride quality, and excessive transmission wear and tear.

Automatic transmissions also have internal “bands”, which are essentially circular sheet metal clamps that are essential to proper transmission function. If your transmission is slipping or making a quiet but noticeable grinding noise in drive or reverse, there’s a good chance your bands are out of adjustment. Having them calibrated will significantly reduce your chances of transmission failure, improve your gas mileage, and enhance your vehicle’s drivability and ride quality.

If you have reason to suspect your transmission is out of adjustment, let our professional technicians take a look. We’ll have your car, truck, or SUV driving like new in no time. For all your transmission repair and maintenance needs, and for the best transmission service in Philadelphia, call or visit Harold's Used Auto Parts Inc today.