Question about 2003 Mazda MPV

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Has a jerking problem and engine light is on.

I've had a complete maintenance done with spark plugs, wires and hoses and whatever it covers. It was okay for a day then it was back to the jerking again. It doesn't seem to lose power or anything. It starts out lightly and then it will gradually get worst and then sometimes goes away for a few minutes. Replaced the battery and had the spark plugs reevaluated as well. I'm just over the 50,000 miles. Oil and tires done every 3 months or 3,000 miles. I love my van and take great care of it. But if I can't get to the bottom of it without spending a fortune, I'll let it go.

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  • momadee23 Jan 10, 2009

    accelerating sometimes it seems to **** a little more and I try going slower hoping it won't do it. When driving constantly it can be worse or just less. It idles fine but you can feel something. Yes while its moving, I don't seem to notice it when its reved up. Yes the engine light is on.

  • momadee23 Feb 17, 2009

    The first scan read #3 after having the spark plugs and wires rechecked it was okay for a couple of days. Then I had it scanned again and it read #2. I don't know anything about the PVC recall, I never received any info on it. I will suggest the above suggestion of possible problems. Thanks again for the help.

  • Tim Higgins
    Tim Higgins May 11, 2010

    get the code checked out - autozone or a scan tool or your local garage can tell you what the codes are that are stored on your computer.

    If you get the code and tell me what it is, I can diagnose much more effectively. :)

  • Tim Higgins
    Tim Higgins May 11, 2010

    does accelerating /decelerating/constant speed affect it?

    does it idle ok?

    when its not moving and u rev the engine does it stutter?

    Is your check-engine light on?

    Could be a drop in fuel pressure - faulty regulator, or the camsensor firing the injectors badly.



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Im seeing more n more problems of the same my 02 p-5 is having, ive been chasing this missfire problem for 3 months, 1 fix works for a few weeks then it returns, gets worse and worse each time, i have disconect vacum line at vics selanoid to realese pressure, then quickly dis and reconnect iac valve then it runs smooth for about 1/2 the way home before i have to stop and repeat...i used to like the zoomzoom now i feel id be better off with a broom broom!

Posted on Jan 06, 2011

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I've had this problem for the past year. I've had the PVC recall issue fixed and then plugs and all 6 Ignition Coils replaced and I still had the problem. In a Tech Service Bulletin posted in the Mazda site there was one that specifically addressed this concern. TSB # 01-023/05 , Engine Misfire Detection Procedure. Basically, the Mazda maintenance crew has to scan it and then if this is the problem, fix it in accordance with the Mazda Workshop Manual (section 01-03 No. 11). I'm statoned in Germany, so it's been a real pain and I'm still trying to get this problem fixed. Should be easier stateside. Hope this helps.

Posted on Jan 12, 2009

  • sfcbleary2 Feb 17, 2009

    Just caught an error with my submission.

    It should say PCV (Positive Crankshaft Valve) not PVC.



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But if not then then go through the following:-
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