stupid theoretical questions about the EGR system

[Johnsabine2003]

okay so I'm basically bored and looking at a picture of an EGR cooler. now looking at the EGR cooler on my truck I see what looks like a coolant line going into the horizontal EGR cooler and then another line coming out of the upper EGR cooler. having little knowledge about how the EGR system works I'm assuming this is how the coolant gets into and out of the entire EGR cooling system. what would be the harm in putting up bypass line between the lower and upper coolant lines bypassing the coolant flow in the EGR cooler completely. then putting a block off plate at the exhaust input side to the EGR cooler system. theoretically this would eliminate the coolant running through the EGR coolers, eliminate exhaust coming into the EGR system, and allow turbo back pressure to fill the EGR system easing stresses on the turbochargers. or am I totally wrong about the whole thing works and just full of crap. ?


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[Johnsabine2003]

thinking more about what I've heard about the EGR balls and set up what I actually know about it which is nothing, I'm guessing that excess pressure from the turbo side of it would actually cause it to close more tightly, so guessing once again I'm figuring that you actually have to have a program written for your programmer that would open the EGR valve above a certain boost pressure. I've probably just had too much coffee.


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[Johnsabine2003]

ROFL ! eGR balls! Stupid Siri


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[Antonm]

No need to "bypass the coolers", just remove the hoses and plug the ports. The cooolant flow doesn't go on to cool anything else in series. My recommendation is to buy one of the several commerically available EGR delete kits (I have a Pro-Flo kit I got from PTP, works great, but I think pretty much every diesel performance company makes one and they all seem to be pretty much the same).

[Johnsabine2003]

Actually on thing I forgot t mention was routing the former egr coolant flow through a coolant filter.


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[smotrs]

Buying one of the several EGR delete kits is only valid if your state doesn't have emissions testing. Otherwise, it's too much work to have to uninstall/reinstall for annual emissions testing.

However, back to the OP's question. Nothing wrong with blocking the exhaust ports then rerouting the coolant lines thus taking the EGR's out of the system so-to-speak. When emissions testing is required, you just remove the plates and replace the original plumbing.