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Sudden performance issues towing or driving against wind

Posted: Mon Oct 17, 2011 7:52 am
by ancajostma90
We have had this issue that appears to come and go. We normally see it when pulling a trailer (it's a small trailer) and my wife had the same problem driving against a strong wind yesterday. The vehicle begins to shudder. The "Check Engine" light flashes and then it acts like it is not firing on all cylinders. The problem is that it did NOT throw a code. So I cannot diagnose. Oil pressure switch?
2004 Nissan Pathfinder SE 4x4