Cutting off then when I do run it like it need sprak plugs

Asked by Apr 01, 2017 at 10:10 PM about the 2010 Chevrolet Impala LS

Question type: Maintenance & Repair

Run for about 45 mins then cuts off n might run
like it need spark plugs

2 Answers

21,105

Check your fuel pressure when this is going on and may just be time for good/full tune up or could be coils too. Check coils when this is happening too, there is three with 6 outputs from in one box. coils may have A weak spark, cracks to case or Oil Leaking from it, Stalling, wont start, Degraded Performance of the Catalytic Converter which may set a o2 code. Fuel pump/fuel pump relay/ fuel pressure regulator/PCM computer/injectors, these fuel related problems can cause stalling, wont crank, weak engine power/ flooding/rough engine idle/ ect. Stalling Due to Mass Air Flow or Crankshaft Position Sensor Failures. In which it may intermittently stall. It may be necessary for the engine to cool down before it will restart. The mass air flow can be cleaned by using mass air flow cleaner and spraying its filament (do not touch it).

55,265

It is not the sprak plugs.

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