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Old 08-11-2018, 12:35 PM   #22
Sharptrans
Junior Member
 
Join Date: Feb 2018
Location: Red Hook NY
Posts: 32
Re: Turbo 350 Transmission Don't Feel Shift 2 to 3

My first suggestion would have been to attach a vacuum gauge to the line at the modulator and check vacuum sweep. Hook up the gauge and snap the throttle, the needle should sweep immediately. If not there could be a carbon build up where the metal line attaches to the manifold allowing a build up of vacuum in the line itself. Remember to attach the gauge at the line where it attaches to the modulator.
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