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Old 07-26-2020, 10:19 AM   #6
randy500
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Join Date: Jul 2016
Location: Tacoma, WA
Posts: 6,873
Re: New Q-Jet will not settle down to idle, it's driving me %$#%$#%$

A couple things come to mind.
Choke thermostat not opening the choke from either not adjusted or blocked heat passage under the manifold.

Worn out throttle bushings which leak air causing high idle and the same wear not allowing consistent closing of the throttle blades.
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