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9 Posts
Discussion Starter #1
i have a 1994 f250 with the DI 7.3 turbo diesel the last couple of days its been making a weird sound found that its the back pressure vavle not opening and closeing when its supose to. it drops about 300 rpms and losses some power. any way to fix that so it operates correctly
 

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OBS junkie
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8,250 Posts
Unplug the wire on your turbo pedistal, keeps it from closing & leaves it open.
 
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