2003 Pontiac Montana Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2003 Pontiac Montana
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2003 Pontiac Montana ProblemsIntake Manifold Gaskets May Leak Coolant or Engine Oil
The intake manifold gasket may develop and external engine oil or coolant leak. In some cases, an internal coolant leak may occur causing coolant to mix with the engine oil. Our technicians tell us that operating the engine with a coolant/oil mix can result in internal engine damage. Replacing the intake manifold gasket should correct these leaks.
Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
The rear light socket plate may fail causing a brake light or other rear light to stop working.
2003 Pontiac Montana QuestionsI ran out of gas, after I refueled the van would not start, like it was starving (1 answer)
Not getting the fuel, I replaced the inline filter, but still nothing.
The rear doors don't open and close the way they should all the time. And the buzzer stays on saying a door is open when they are closed.
Failed emission testing came back with P0446 went and had diagnostic check out the said I need a new charcoal canister and purge valve.
2003 Pontiac Montana RecallsThe Fuel Tank Inlet Check Valve Can Crack and Leak
Due to variations in the manufacturing process, or exposure to high heat may lead to a fracture in the tank inlet check valve. Fuel vapors may pass through the fracture and accumulate on the side of the fuel tank. A fuel leak in the presence of an ignition source could result in a fire. Dealers will replace the fuel tank. The recall began December 4, 2007. The GM recall number is 06230.
The owner's manual does not explain the child restraint anchor location symbols for the lower universal anchorage system. This does not meet the Federal Motor Vehicle Safety Standard. Owners were sent supplements to the owner's manual explaining the location symbols in the vehicle. The recall began August 18, 2003. The GM recall number is 03039.