Thread: Cummings 6.7L ?
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Old February 23rd, 2012, 03:03 PM   #13
nickb304
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lots of guys just pull the electrical connector or the egr to make it inoperable while the truck is under warranty. supposed to help with mpg and soot build up. just plug it back in and cycle the key a few times to get rid of the check engine light before it goes to the dealer for any service work.
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