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Old 09-02-2017, 08:47 PM   #33
geezer#99
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Join Date: Aug 2009
Location: Bowser
Posts: 13,494
Re: 1985 chevy c10 rough running

Next!!!!

Might be your secondary air valve opening too quick.
To test just tap the door with your finger. It should pop open and then snap shut.
If not you might need to adjust it.
Look here.
http://www.73-87.com/7387garage/drivetrain/myqjet.htm
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