# 2006 Pacifica engine issue

**URL:** <https://community.cartalk.com/t/2006-pacifica-engine-issue/93087>\
**Category:** Maintenance/Repairs\
**Created:** [April 20, 2016, 6:51am UTC](https://community.cartalk.com/t/2006-pacifica-engine-issue/93087 "2016-04-20T06:51:04Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![elandan](https://avatars.discourse-cdn.com/v4/letter/e/3da27b/32.png) [@elandan](https://community.cartalk.com/u/elandan)\
**Post date:** [April 20, 2016, 6:51am UTC](https://community.cartalk.com/t/2006-pacifica-engine-issue/93087/1 "2016-04-20T06:51:04Z")

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I noticed that someone had previously came here with the same issue that I had but I did not see any response to the issue they asked about.

I drive a 2006 Pacifica and lately the engine has been causing me some grief. When I am in park, neutral, or in gear but stopped, the engine will sometimes rev up and my speedometer will jump accordingly sometimes as high as 30 mph. My first thought was that it might be a transmission issue, but I’m not a car mechanic so I don’t know much along the lines of what to check or do. The model is an automatic 3.5L

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**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\
**Post date:** [April 23, 2016, 4:21am UTC](https://community.cartalk.com/t/2006-pacifica-engine-issue/93087/2 "2016-04-23T04:21:46Z")

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The speedometer is registering 30 mph but in fact you aren’t moving at all? hmmm … some kind of problem with the vehicle speed sensor I’d guess. That could also cause other drivability problems. Suggest to start with that.