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Old 07-25-2007, 04:59 AM
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Exclamation True or not

I'm not a tech but is this theory correct?If you unplug your egr sencor and DO
NOT have a sneaky pipe on the truck would the egt that is being put back in to the motor be to hot and cause your egr cooler to develope a crack in it,since you have the cooler unpluged and valve is not opening?like I said I'm not a tech but I do know alot about gassers.And if this is the case than I think everyone should know before they go and unplug the cooler.Any tech's correct me if I'm wrong please!!!!!!!!!!!!!!!!!!!!!!!
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Old 07-25-2007, 05:30 AM
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Hey scott,can you answer this one for me?
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Old 07-25-2007, 06:40 AM
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I with you and wouldn't think so, but at the very least, here's a bump for ya!
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Old 07-25-2007, 12:39 PM
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bump bump bumo!
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Old 07-25-2007, 05:11 PM
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Bumo? You run the risk of flash boiling the coolant with or without the EGR unplugged or deactivated. The only way to prevent it is to block the exhaust flow into the EGR cooler. The EGR system in theory allows burned (inert) gases into the intake air charge to lower the combution temperatures. The inert gases supposedly take up volume where normally oxygen would be equalling a cooler (though less complete in my opinion) burn.
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