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View Full Version : Duramax running issue. Low rpm.



John Welch
12-04-2010, 22:23
My truck runs for about 15 min strong then it drops To 2000 rpm and I then I prime the fuel on the Filter, this takes an hour or so and it will do the same thing again. I changed the filter and added two isopropyl dry gas and a additive. This did nothing. Each time I would need a small shot of ether to start it. 50,000 miles and on this day it was about 30-35 degrees. No gelling in the fuel

cowboywildbill
12-05-2010, 05:33
John, sounds like fuel line leak or maybe the filter isn't sealing? But I wouldn't use either to start it. That could really damage the engine.