All about tires

Everything you wanted to know about tires.

Example- P 235 / 60 / R-16 97S

(P) Passenger (P-Metric) Tire- The United States version of a metric tire sizing system. The letter P as the first character in the tire size means a passenger vehicle tire engineered to standards set by the U.S. Tire and Rim Association.

Rotate tires every 6,000 miles. See this picture for proper procedure. On many late model Chevrolet, Buick, Pontiac, GMC, Cadillac and Oldsmobile cars and trucks, the Tire Pressure Monitor(TPM) system must be relearned so the system will know where each tire is located.

One way to tell when it is time for new tires is to check the tread wear indicators, which will appear when your tires have only 1/16 inch (1.6 mm) or less of tread remaining. These indicators are flat spots between the treads.

Tires should be checked for abnormal wear patterns periodically. Just rub your hand around the tire and feel for roughness, flat spots, or feathering.

Does you car need a Front End Alignment?

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How Things Work

Charging System Components and Operation

On today's newer cars and trucks, the generator (ALternator) provides DC voltage to operate the vehicle's electrical system and to charge the battery. A magnetic field is created when current flows through the rotor windings. The rotor is belt driven by the engine creating an AC voltage as this field rotates within the stator windings.

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Common Engine Codes

P0128 Coolant Temp Below Themostat Threshold

An engine coolant temperature (ECT) sensor monitors the temperature of the coolant. This input is used by the powertrain control module (PCM) for engine control and as an enabling criteria for some diagnostics.

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