harinayar Posted September 28, 2011 Report Share Posted September 28, 2011 Lexus LS400 is sputtering after driving for sometime and also loosing power. What should i do Link to comment Share on other sites More sharing options...
jud Posted September 29, 2011 Report Share Posted September 29, 2011 According to my experience it should be the fuel pump that is not working. Link to comment Share on other sites More sharing options...
shadow79 Posted December 15, 2013 Report Share Posted December 15, 2013 loosing power and sputtering is caused for many reasons it hard to say unless the car is in front of me and with some checking but the general reasons are if the timing skips worn spark weak coils cam or crank and air flow sensor intermittently failing and fuel pressure falling or fuel filter choked this is much of it that comes to my mind at the moment... Link to comment Share on other sites More sharing options...
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