# Car vibrating upon acceleration - engine misfire?

**URL:** <https://community.cartalk.com/t/car-vibrating-upon-acceleration-engine-misfire/17767>\
**Category:** Maintenance/Repairs\
**Created:** [August 6, 2008, 4:35pm UTC](https://community.cartalk.com/t/car-vibrating-upon-acceleration-engine-misfire/17767 "2008-08-06T16:35:22Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![suznericward](https://avatars.discourse-cdn.com/v4/letter/s/d9b06d/32.png) [@suznericward](https://community.cartalk.com/u/suznericward)\
**Post date:** [August 6, 2008, 4:35pm UTC](https://community.cartalk.com/t/car-vibrating-upon-acceleration-engine-misfire/17767/1 "2008-08-06T16:35:22Z")

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My 2000 VW Passat GLX wagon with 90K miles has a vibration that occurs when I reach about 50 mph and only upon acceleration (stops when I take my foot off the pedal). My husband thinks it is an engine misfire but none of my engine lights are coming on. I do also have an oil leak and recently had my CV joints replaced and have all new tires, and a recent alignment.  
  
  
  
 So, do you think it is an engine misfire, and if so, what does that mean? Do I need to get it fixed, and how much will that set me back? What do I need to know before taking to a mechanic so I don’t get hosed?  
  
  
  
 thanks!  
  
 Suzanne

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**Author:** ![FoDaddy](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/fodaddy/32/717_2.png) [@FoDaddy](https://community.cartalk.com/u/FoDaddy)\
**Post date:** [August 6, 2008, 5:25pm UTC](https://community.cartalk.com/t/car-vibrating-upon-acceleration-engine-misfire/17767/2 "2008-08-06T17:25:16Z")

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If you had a misfire your check engine light would be on. If your car requires premium fuek are you using it? Could be a bad/loose part in the front suspension.

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**Author:** ![suznericward](https://avatars.discourse-cdn.com/v4/letter/s/d9b06d/32.png) [@suznericward](https://community.cartalk.com/u/suznericward)\
**Post date:** [August 6, 2008, 5:58pm UTC](https://community.cartalk.com/t/car-vibrating-upon-acceleration-engine-misfire/17767/3 "2008-08-06T17:58:34Z")

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I also recently, last month, took my car to the dealership because they sent me a safety recall notice and they checked the front end, and I also had the front end checked last november when I had a tune up and brake pads replaced. I use 93 octane fuel.