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 ProblemsThe 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.
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.
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.
2003 Chevrolet Malibu QuestionsSent 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
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.
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.
2003 Chevrolet Malibu RecallsIgnition 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 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.