3 Signs Your GMC Needs Maintenance

Pulling to One Side

When you hit the brakes, the calipers simultaneously clamp against the spinning wheel rotors. Brake pads inside the calipers produce friction against the rotors, slowing and stopping the wheels. If you apply the brakes and your vehicle turns toward one side and continues moving, you have a brake problem.

This issue is due to a caliper failure, and the affected wheel continues to move until the calipers on the other three wheels stop it. The two main causes of this problem are a rusted or damaged caliper or a blockage in the brake hose connected to the affected caliper. If brake fluid can’t reach the caliper, the caliper won’t work. A rusted caliper won’t move or close, so it can’t stop its wheel. Our technicians will investigate and fix the problem.

Random Electrical Problems

Most of your GMC’s systems depend on electricity produced by the alternator. Electricity can be fickle, and a minor issue could affect a system temporarily and then cease and never reappear, like the sunroof suddenly stopping, then resuming movement and closing. If you experience frequent seemingly random electrical issues, you could have an alternator problem.

The alternator will gradually slow down due to age and worn parts. When this happens, the electricity supply will drop. Electricity production continues to fall until the alternator can’t supply power to all the vehicle systems. When this happens, electrical issues will appear as the limited available electricity is shifted from system to system depending on demand. We’ll test your alternator and repair or replace it, and the electrical issues will stop.

Damaged Radiator Cap

The radiator cap controls the cooling system’s pressure. Coolant moves through your engine at high speed and absorbs heat. The heat is then transported to the radiator, where it’s removed by heat exchange. The absorbed heat and fast-moving coolant raise the pressure inside the cooling system, and if it rises too high, the radiator cap opens to release excess pressure and then closes.

The cap is securely screwed into the radiator and has seals that ensure an air-tight fit. In time, these seals can crack, and coolant will leak. We’ll examine the radiator cap and replace it if necessary.

These are just some ways we can ensure your vehicle is always in great shape. Contact us today at Ed Martin Buick GMC in Carmel, IN.

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