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Re: TH400 help
Quote:
Originally Posted by Captainfab
The adjustment screw on a vacuum modulator is inside and accessed thru the port for the vacuum hose.
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Be very careful and make changes 1/4 to 1/2 turn at a time. You can puncture the diaphragm in them if you crank it in too far. As me how I know...
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87 R30 CC Dually, TBI 454, NV4500, zero rust barn find
87 Jeep Grand Wagoneer, 6.5 turbodiesel, 700R4
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