99 & up 7.3L Power Stroke Engine and DrivetrainDiscussion of the 99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.
My back cylinders on both sides are leaking, theres a good amount of soot around the back port. I have a loud exhaust noise under load and in the morning while driving unloaded but goes away once warmed up. I crawled under and noticed the rear exhaust bolts were not tight. So I tightend them down and still leak. I have read alot of posts and in the air as what to do. Either install gaskets, new manifolds, resurface existing or ceramic coated manifolds. Any suggestions?
Some leakage is typical but a leak is a leak. Usually installing the gaskets is the simplest and least expensive option. I say "usually" because you never know when you will encounter a seized bolt that breaks or a manifold that is unknowingly rotted away. Consider new bolts with the gaskets on this project.
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Last edited by ford_doctor; 11-05-2009 at 12:47 PM.
Some leakage is typical but a leak is a leak. Usually installing the gaskets is the simplest and least expensive option. I say "usually" because you never know when you will encounter a seized bolt that breaks or a manifold that is unknowingly rotted away. Consider new bolts with the gaskets on this project.
A exhaust manifold gasket on a 7.3 ??
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Jim Sult / Excavator (we dig it) Trying to fix it? KISS IT"KEEP IT SIMPLE STUPID" Avatar- purchased off Ford lot as NON RUNNING ENGINE - I drove it off lot in 1 hour/ my everyday 1996 F250 XLT Ext Cab, Powerstroke, 4x4 Dana 60 , Bilsteins shocks, Greggs MB AutoTrans, BabySwamps,Tony Wildman Chip, AutoMeter Pyro/Trans/Boost, Tymar intake, MBRP 4 in turbo back exhaust, 209000 miles,D&B HT Starter
1996 F350 XL PowerStroke 4X4 DRW, Auto Trans, Stock Work Dump truck, DDP down pipe,Tymar intake, 113000 miles
1997 F350 XL 2x4 DRW Powerstroke , DP Tuner PCM, 5 speed,Luk Clutch Tymar intake. DPP downpipe, 185,000 miles
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, Bilsteins shocks, Greggs MB AutoTrans, Baby 
Swamps,Tony Wildman 
Chip, AutoMeter Pyro/Trans/Boost, Tymar intake, MBRP 4 in turbo back exhaust, 209000 miles,D&B HT Starter
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