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Old 08-29-2020, 11:56 PM   #4
ASH302
Soldier for Christ
 
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Join Date: May 2009
Location: Willis, TX at The Daddy ASh Ranch
Posts: 30,596
Re: mach is jerking while driving.

Quote:
Originally Posted by bluoval View Post
Had similar problems, got a re-tune and problems went away. Might also be water in the fuel or coil pack issue as you mentioned. I tend to think a tuning issue, though.
That is my worry, but after talking with the seller, we both started thinking.
The issue didn't start till after the compression test, which made us both think that maybe a spark plug may not be tighten all the way down.
I'll be checking in the morning, it be worth looking into.

ASh
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2001 lazer red v6 Mustang coupe sold in Aug 2006
2004 screaming yellow 5.0 sc Mach 1 sold in Oct 2012
2013 grey 6 speed coupe GT Mustang Sold in Feb 2014
2013 RED Dodge Charger R/T Sold Nov 2014
2002 custom Blue 02 Auto Trans AM Sold June 2015
1998 Cobra Black Sold summer 2016

Current
2009 Ford F350 FX4 March 2017 (work truck)
2003 OW 5.0 Mach 1 Aug 2020

ASh
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