
2004 Mercury Grand Marquis GS 4.6L Bucking
sometimes when u start out cold runs great and warms it start bucking for no reason .ran for codes no codes so I unplug mass air flow .. runs great so I replaced mass air flow same problem once I put it in. long fuel trims run about -7-13 sometime spray around...
FIX posted 2/21/2017
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Message Closed w/FIX
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VIN | 2MEFM74W64 |
Engine | 4.6 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | Bucking |
Occurs | Always |
Message Closed w/FIX
Vehicle Data
2004 Mercury Grand Marquis GS
VIN | 2MEFM74W64 |
Engine | 4.6 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | Bucking |
Occurs | Always |