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1991 Nissan Pathfinder Question: while idleing the vehicle sounds like it misses

 

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JAE391, 3.0L V6, Largo, FL, September 14, 2010, 12:06
 Rookie

the vehicle is a 1988 nissan pathfinder and while we are sitting idling the vehicle sounds like it misses. we place it in neutral and acceralte a little to overcome the missing. Someone mentioned maybe a timing gear!

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  • Answer #1

    patrick mannion from Greg Solow's Engine Room, September 14, 2010, 13:04
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     Master

    With that VG30 engine it could be a bad spark plug or plug wire but another possible "noise" could be the exhaust manifold has a crack or manifold stud to have pulled out of the head (common).

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  • Answer #2

    ccsmog from Contra Costa Smog and Repair, January 24, 2011, 11:42
     Journeyman

    Vacuum leaks tend to misfire @ idle but will disappear off idle as more air is required

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