# My Jerky Aerostar

**URL:** <https://community.cartalk.com/t/my-jerky-aerostar/34929>\
**Category:** General Discussion\
**Tags:** aerostar, ford\
**Created:** [August 12, 2009, 4:52am UTC](https://community.cartalk.com/t/my-jerky-aerostar/34929 "2009-08-12T04:52:49Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![valoister](https://avatars.discourse-cdn.com/v4/letter/v/ce7236/32.png) [@valoister](https://community.cartalk.com/u/valoister)\
**Post date:** [August 12, 2009, 4:52am UTC](https://community.cartalk.com/t/my-jerky-aerostar/34929/1 "2009-08-12T04:52:49Z")

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When I drive my 93 Aerostar in overdrive and I start up a hill or decelerate, my truck jerks. It only doe’s it in overdrive, the speedo doesn’t fluctuate but the check engine light is flashing. It only stays on for a minute or less, so I haven’t been able to get a code reading other than there’s nothing wrong.This started once before about 3 wks ago, but stopped when I put heet in the gas. I have been told that if I have a bad plug or wire that would make it jerk? I do have 1 plug that I cant get out, so prep-haps that’s the problem. If anyone has any suggestions let me know

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**Author:** ![twotone](https://avatars.discourse-cdn.com/v4/letter/t/e95f7d/32.png) [@twotone](https://community.cartalk.com/u/twotone)\
**Post date:** [August 12, 2009, 5:39pm UTC](https://community.cartalk.com/t/my-jerky-aerostar/34929/2 "2009-08-12T17:39:41Z")

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Based on the subject line of your post, I assumed it was an overall derogatory comment regarding the overall quality (or lack thereof) of your vehicle. Your problem could be one or more of the following:

Fuel, clogged lines or fuel filter  
Spark, wires, plugs or timing  
transmission shifting  
control computer

Take it to a competent independent mechanic and have them check it out. Too many interrelated systems to diagnose from here.

Twotone

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**Author:** ![valoister](https://avatars.discourse-cdn.com/v4/letter/v/ce7236/32.png) [@valoister](https://community.cartalk.com/u/valoister)\
**Post date:** [August 13, 2009, 1:00am UTC](https://community.cartalk.com/t/my-jerky-aerostar/34929/3 "2009-08-13T01:00:55Z")

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There wasn’t any derogatory remarks about Ford trucks I’ve had many and they run good, haul good, and are usually easy to repair. I just can’t get a code reading on this one. I guess it,s not broke enough yet. There have already been two reputable garages that got a not broken reading today, so I was looking for an experienced guess not a lesson on when to seek competent help. But thanks for the other ideas.