2003 Chevrolet Malibu Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2003 Chevrolet Malibu

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2003 Chevrolet Malibu Problems

The Fuel Gauge May Not Read Correctly and/or Check Engine Light With Code P0455/P0461

The fuel gauge may not read correctly and/or the Check Engine Light may illuminate with code P0455/P0461 stored for a fuel level sensor issue. These faults may be caused by a fuel vapor line inside the fuel take interfering with the fuel level sensor. If this is found to be the case, repositioned and securing the vapor line should correct this concern. If no fault is found with the fuel vapor line, the fuel level sensor itself may be at fault.

Intake Manifold Gasket 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.

"No Start" Due to Ignition Switch Failure

The ignition switch may fail causing a no start condition. This is not generally a theft system (passlock) issue because the security light does not illuminate or flash.

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2003 Chevrolet Malibu Questions

Sent 2 prev. questions re "oil" in overflow tank. Rec. 2 replies. (1 answer)

Driving as little as possible. Would there be any advantage to
flushing cooling system until we
actually get a solid answer and
make a decision as to repair or

Vehicle in for oil change; discovered oil in radiator overflow tank. (1 answer)

No lit icons, no error messages.

Engine running O.K.

Previous repair of leak at intake manifold done at approximately 60,000 miles (now 114,000) at
local GM dealer.

Why is my car not sending any info to the emissions machine? (2 answers)

I have taken my car to three different emissions places. They have all said that they can not get a reading. I have had the fuses checked and all are in good shape.

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2003 Chevrolet Malibu Recalls

Ignition Lock Cylinder Concern

Excess weight on the key ring can cause the ignition switch to move out of the run position without warning, turning off the engine. This defect can also affect the safe operation of the airbag system. Until this recall is performed, customers should remove all items from their key rings, leaving only the ignition key. The key fob (if applicable), should also be removed from the key ring. Dealers will provide two replacement key rings and key cover on all ignition keys to correct this concern.

GM Recalls 2003 Vehicles Due to Sticking Accelerator

GM has recalled certain 2003 Chevrolet Malibu, Oldsmobile Alero, and Pontiac Grand Am vehicles because the accelerator may stick in hot temperatures, which can increase the risk of an accident. Dealers will inspect the accelerator pedal arm and replace the accelerator and brake pedal assembly.

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2003 Chevrolet Malibu Reviews

I bought my car new and have never had any problems with it. The AC switches from internal air to outside air on its own, but I think it's supposed to do that, according to temp inside and out. The struts wore out after 4 yrs , but have not had any major problems and would recommend it for an everyday car for small family or single person.
I owen this car since it had 4 miles on it, and it the best all over car I have owen. Love to drive in the city or open roads. I do not think I have one thing more could be added to the car.
This car is great for travel it does good on gas and is very comfortable on the inside the engine runs great and gets up when it needs to the tranny could be better but it's good for long distance driving at about 26MPG

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