Engine Serg (jerking) motion

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  #1  
Old 09-28-10, 09:07 PM
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Join Date: Jan 2007
Location: Stafford, VA 22554
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Engine Serg (jerking) motion

Posting question again, not sure I did it right the first time:

2003 Ford Explorer SUV 6 Cyl. 4.0 A/T

When driving I get a serg motion from the engine. Kinda like a jerking motion.

Does not always happen, seems to do it more at about 40 mph.

Engine has 98,000 miles on it. Transmission changes smooth and has good pickup until that problem returns.

Many thanks,
Duke of ....
 
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  #2  
Old 09-28-10, 09:42 PM
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Join Date: Sep 2010
Location: jefferson
Posts: 3
Red face scan

Could be a thousand things, go to autozone or O"reilleys or any go get "um" Chain auto parts store and they will scan it at no charge.
 
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