lutfi Posted April 13, 2012 Report Share Posted April 13, 2012 From last week, i notice that on few km speed (70 -90) my throttle is hesitating quite a bit and this hesitation is increasing gradually. But if im racing on lower gear then no problem, it just pass 70-90 without any hesitation. WHen i drive nice and easy then only it hesitate as if there is no fuel in the car, where as there is always plenty of fuel to go 200+ kms. Link to comment Share on other sites More sharing options...
champi Posted April 15, 2012 Report Share Posted April 15, 2012 Get the fuel pump and air flow meter checked. Either of two could be an issue and thats why its hesitating the car at specified speed. Link to comment Share on other sites More sharing options...
lutfi Posted April 26, 2012 Author Report Share Posted April 26, 2012 Thanks Champ, you indeed a Hyundai Champ. My fuel pump was getting very weak and not pumping fuel to engine after certain pressure (PSI). Mechanic tested that before and said its fine. And for next 3 days he couldnt find any other fault and said, lets take a guess on fuel pump and see if it can cure the problem. And indeed i got new fuel pump and it magically cured the problem completely. Now my car runs great at any speed. Link to comment Share on other sites More sharing options...
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