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Old 04-15-2019, 05:50 AM   #7
Wgesnerjr
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Join Date: Jun 2015
Location: Atlanta, GA.
Posts: 737
Re: Stumbling on Cold Starts

I had a similar problem recently and found out it was a bad O2 sensor. Here is my thread.
http://67-72chevytrucks.com/vboard/s...ight=stumbling
Gets interesting around page 3.
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Jay Gesner
Atlanta, GA
1985 C10 Long Bed 4X2
LS 5.3, 4L60E
Father/Daughter Project
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