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Vehicle jerks while driving

Tiny
MOZI
  • MEMBER
  • 2003 RENAULT MEGANE
  • 1.6L
  • 4 CYL
  • FWD
  • 12,500 MILES
The vehicle is jerking on second and third gear. I have replaced the coil packs, coil pack harness, spark plugs, petrol filter and did the service. But the vehicle still jerks. I have put the diagnostic machine and no fault found.
Friday, August 5th, 2016 AT 10:01 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,968 POSTS
It sounds like you have low fuel pressure and the pump needs to be replaced.

Here is some guides to help you see what tests to do and what you are in for.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

and

https://www.2carpros.com/articles/how-to-replace-an-electric-fuel-pump

Please let us know what you find we are here to help.

Best, Ken

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Saturday, August 20th, 2016 AT 1:54 PM

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