EGR cooler failure question
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EGR cooler failure question
I'm continually reading about the requirement to install upgraded or stronger EGR coolers. I understand the point, that a stronger EGR cooler would be less likely to fail, but it also won't cool the exhaust stream as well, and will be introducing hotter exhaust gas into the intake stream. Now, I am assuming that a cooler stream of gas is better, both for reducing emissions and for the general health of the engine, and that may be dangerous to assume. But I am also of the opinion that the reason the EGR cooler fails is really a side effect of the oil cooler failing, and that if the oil cooler is in good shape and coolant flow is correct, the EGR cooler won't fail. So - is this a true statement? That if coolant flow through the EGR cooler is correct, that it won't be subject to unusual failure? If so, why not just put an OEM part back in?
Also - if the coolant flow getting blocked is what causes the EGR cooler failure, has anyone ever experimented with separating the coolant flow so that the oil cooler flow bypasses the EGR cooler and the EGR cooler gets it's own independent flow of coolant?
Brian
Also - if the coolant flow getting blocked is what causes the EGR cooler failure, has anyone ever experimented with separating the coolant flow so that the oil cooler flow bypasses the EGR cooler and the EGR cooler gets it's own independent flow of coolant?
Brian
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It's just part of the chain reaction. Oil cooler plugs and the EGR ovedrheats and ruptures, which then takes out the head gaskets or worse.
In and of itself the 05+ coolers aren't that bad. Their have been cases of a good oil cooler and a bad EGR cooler, but it seems somewhat rare.
Doesn't seem too likely to seperate the coolant path to those compnonents.
Josh
In and of itself the 05+ coolers aren't that bad. Their have been cases of a good oil cooler and a bad EGR cooler, but it seems somewhat rare.
Doesn't seem too likely to seperate the coolant path to those compnonents.
Josh
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