Thread: Starting issue
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Old 12-01-2021, 12:24 PM   #8
joey
 
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Join Date: Oct 2020
Location: Colorado
Posts: 28
Vehicle: Reg cab 2wd 1989 D21 w/ a motor from an '86 D21
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Sorry you are having those issues with it. My truck ALWAYS idles high 1.5k. I've read that it could be the throttle body gasket leaking air. Havent had the time to replace it yet to find out. I ALSO need to replace all my vacuum hoses.
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