2007 Chevrolet Impala LT 3.5L Misfire
Very slight miss on #4 . Changed plugs ,wires checked fuel pressure , vucum all very good . Mis does not start until engine runs for 30 to 40 seconds checked vacum leaks at manifold seems good cannot reach #4 injector with out disassembly of intake . We think ...
FIX posted 4/24/2013
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Vehicle Data2007 Chevrolet Impala LT
Trouble Codes
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Message Closed w/FIX
Vehicle Data
2007 Chevrolet Impala LT
VIN | [No VIN Available] |
Engine | 3.5 L / 6 cyl / FLEX |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | Misfire |
Occurs | Under Load, Idle |
Misc. | Flex Fuel |
Trouble Codes
P0300 | Multiple Misfire Detected |