TDoc
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Hadn’t touched this thing since I made this post been busy fixing my other truck but let her sit for the past few weeks finally was like... -
TDoc reacted to Turbo4whl's post in the thread LE9 305 ESC backfires through exhaust on deceleration with
Like.
Here, I'll make it easy for you. :) -
TDoc reacted to ChuckN's post in the thread LE9 305 ESC backfires through exhaust on deceleration with Haha.
What I see when I look at emissions diagrams. Sorry, I know that’s not helpful.
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TDoc reacted to SirRobyn0's post in the thread LE9 305 ESC backfires through exhaust on deceleration with Like.
Dual cats. You can get high flow cats if your concerned about the added restriction. Having a working air pump will help the cats to...
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TDoc replied to the thread LE9 305 ESC backfires through exhaust on deceleration.Exhaust is stinky with air pump hooked up or not. Not that I love huffing exhaust fumes but this k5 has a distinct smelly exhaust. I put...
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TDoc replied to the thread LE9 305 ESC backfires through exhaust on deceleration.
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TDoc replied to the thread LE9 305 ESC backfires through exhaust on deceleration.I don’t have any good pics of the exhaust manifolds but here’s what the passenger side looks like. Just the single big tube where the...
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TDoc replied to the thread LE9 305 ESC backfires through exhaust on deceleration.I took the belt off the air pump and no more backfiring! I don’t have a catalytic converter so no need for the air pump? I’ve left the...
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Leave your stock manifold and egr. EGR is not a bad thing,research it,thoroughly. It goes away when you are in the throttle,so no...
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TDoc replied to the thread Carb Adapter.I have a spare edelbrock 2701 square bore dual plane intake . Would it be worth it to install this instead of my stock Quadrajet cast...
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TDoc reacted to fast 99's post in the thread LE9 305 ESC backfires through exhaust on deceleration with Like.
Is the air pump diverter valve functioning? exhaust leaks? Most common cause is O2 entering exhaust causing unburnt fuel to ignite.
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TDoc replied to the thread LE9 305 ESC backfires through exhaust on deceleration.No exhaust leaks since exhaust was redone. Where is the diverter valve? On the air tube to the manifold? I was going to take the belt...
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TDoc reacted to PrairieDrifter's post in the thread LE9 305 ESC backfires through exhaust on deceleration with Like.
Exhaust leak, or retarded timing. I am no help with the esc systems. The plugs look pretty dang good though, maybe a hair lean.
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TDoc reacted to DoubleDingo's post in the thread LE9 305 ESC backfires through exhaust on deceleration with Haha.
My 81 does it too, no ESC, no EGR, and the only way to get it to not backfire is let off the gas easy. If I lift my foot quickly it...
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TDoc replied to the thread LE9 305 ESC backfires through exhaust on deceleration.Factory quadrajet, intake and ESC. Air pump still operational but no catalytic converter.
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