TwinTurbo.NET: Nissan 300ZX forum - Lurching problem while cruising or letting off throttle?
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Subject Lurching problem while cruising or letting off throttle?
     
Posted by Zashi on April 13, 2019 at 12:10 AM
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Message I have a hard-to-describe problem that I'm really not sure the cause of. During idle or acceleration there's no noticeable problem I can find, and during engine braking there's not much of a problem either, but when I try to maintain a steady throttle position at speed, it's as if the car's hesitating or lurching back and forth, but drives smooth if I accelerate or apply a degree of throttle. But that minute in-between of engaging/disengaging throttle trying to maintain a steady and consistent speed, it's unsettling.

I'm not sure what it could be. And if I let off the throttle suddenly at speed, there's almost a clanking or thudding sound when it's disengaging, and I'm almost sure it's the same problem, or same problem area. I have no idea what it could be and haven't had this problem with any of my other cars or Zs, so I'm curious if anyone has any ideas.

     
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