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1994.5 - 1997 7.3L Power Stroke Diesel  

Intake plenum question.

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Old Jun 9, 2025 | 02:29 PM
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Intake plenum question.

I likely know the answer but I'm trying to concince myself to leave them alone. Truck is 1996 with 80k miles, cnc hpop, stage 1's, KC stage 1, truck runs great. Thought I'd check for boost leaks anyway. Found a couple clamps that needed to be tightened. It now takes 3 minutes for pressure to drop from 25psi to 0. But.. spraying soapy water around, there are a few pinhole leaks on the plenums where the rtv silicone seals them. Very small leaks and like mentioned, 3 minutes for pressure to bleed off. Do I bother changing them/ resealing them?
 
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Old Jun 9, 2025 | 02:56 PM
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From: Bahstun
if it drops from 25 to 20 fast, then I would re seal
 
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Old Jun 9, 2025 | 04:13 PM
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Originally Posted by knottyrope
if it drops from 25 to 20 fast, then I would re seal
9 seconds 25 to 20.
 
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Old Jun 10, 2025 | 08:58 AM
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From: Bahstun
that sounds fast
 
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Old Jun 10, 2025 | 09:17 AM
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Originally Posted by knottyrope
that sounds fast
I think so too. Eyeballing the CNC fab plenum with gasket
 
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