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Old 05-10-2011, 06:10 PM   #1
NINERS1
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Join Date: Feb 2006
Location: weatherford ok.
Posts: 255
Question about trans vac modulator

Hey guys, does anyone know if a bad vacume mod on a th 400 trans would cause my trans to only have park and 1st? no matter where i shift to it's 1st. already unhooked the linkage and shifted it at the trans output shaft to eliminate column and linkage, same thing no reverse or neutral. and checked the vac lines from the mod to the intake seem to be fine. could it be the modulator causing this?
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