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-   -   jerking on MPV van (https://www.mazdaforum.com/forum/mazda-mpv-17/jerking-mpv-van-28890/)

krzbookworm 03-19-2012 01:35 PM

jerking on MPV van
 
I have a 2003 MPV van that jerks sometimes when accelerating. Usually happens around 40 to 50 mph. It seems to happen after I fill up and around 3/4 to 1/2 tank of gas. Could it be a fuel problem?

I have taken it to the dealership and a non-dealer mechanic and they cannot find anything wrong. The dealership did change some sensors but it still does it.


I am not very knowledgeable about cars so any help, suggestions are appreciated.

MazdaTirol 03-20-2012 12:22 AM

Hi and welcome to the forums!! If you could please put your car's info into your signature (year, model, engine, trans etc) it would help us all out ;)

Is your check engine light on? If so did the mechanic tell you what the codes were?

When you say jerk do you mean like a hesitation/lack of power briefly? On a vehicle that old one thing that will almost always help is changing the fuel filter, this is never done often enough, a plugged filter will make the pump work harder and eventually kill the fuel pump.

Do you always fill up at the same place? I filled up once after a tanker filled the stations tanks.......never going to do that again, had a tank filled with crap and a plugged filter. Maybe try a different gas station if you can.


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