2003 Pontiac Montana Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2003 Pontiac Montana
2003 Pontiac Montana Problems
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 Questions
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 Recalls
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.
2003 Pontiac Montana Reviews
Bought with 14K miles and now with 145K. Except for routine maintenance I have only had to replace the intake manifold gasket and water pump. Now the head gasket is leaking and needs replaced. Engine still runs great with good performance. The plastic bottom panel hides the rust well. No electrical problems. It has been very reliable.
Purchased a 2003 Montana with about 20,000 miles on it. The thing with the Montana is that a lot of annoying little things go wrong. The fuel gauge does not work, warning lights go off when there are no actual problems, lower plastic side panel gets knocked off in a car wash, doors have to be unlocked/locked and unlocked again to open ... it does not inspire confidence. I am very fortunate t...
I bought mine used, and it came with electrical problems. Still hunting some of them down even now, a year later. There is plenty of power for this van, and it does so much better than the Dodge Caravan. I have the extended van, and have been able to haul three 3/16" sheets of drywall, a fullsize couch and other items in the back without too much problem. We've also had it full of kids. T...