* Transmission Problems: This is arguably the most common complaint. Problems ranged from rough shifting to complete transmission failure, particularly in the automatic transmissions. Issues were more prevalent in earlier model years. The symptoms could include slipping, delayed engagement, harsh shifting, and whining noises.
* Engine Issues: While not as widespread as transmission problems, engine issues did occur. These included problems with the valve cover gaskets leading to oil leaks, issues with the cooling system (like leaking radiators or water pumps), and occasional problems with the engine itself depending on the specific engine type (2.4L Ecotec, 3.5L V6).
* Electrical Problems: Various electrical gremlins were reported, such as problems with the power windows, power locks, and the radio system. These are more of a nuisance than major mechanical failures but can still be frustrating.
* Suspension Issues: Wear and tear on suspension components, like bushings and ball joints, was relatively common, especially on higher-mileage vehicles. This led to noises and potentially poor handling.
* Brakes: Brake pad and rotor wear was a typical maintenance item, but some owners reported premature wear or issues with the anti-lock braking system (ABS).
* Cooling System Issues: Leaking radiators and water pumps, as mentioned above, could lead to overheating. Regular maintenance and inspections are crucial to prevent this.
Important Note: The frequency and severity of these problems varied significantly depending on the model year, maintenance history, and driving habits. Proper maintenance, including regular oil changes, fluid flushes, and inspections, could significantly reduce the likelihood of many of these issues. It's always best to research the specific model year and engine/transmission combination you're considering before purchasing a used Pontiac G6.
