RAYSTRASH Posted December 24, 2013 Share Posted December 24, 2013 I have a question about an engine code I pulled out of one of our trucks.2009 MRUMID 128 engine ECUPID 26FMI 3Number of occurences 1activeMy question for this code is, what does it mean?I also has inactive codes forEngine ECUTrans ECUDash ECUall of those code are inactive and numerous Quote Link to comment https://www.bigmacktrucks.com/topic/34006-engine-code-question/ Share on other sites More sharing options...
Challenger Posted December 24, 2013 Share Posted December 24, 2013 Mid 128 Pid 26 FMI 3 Fan speed code. You should have an electric fan with a connector on the driverside of the engine. Is the fan running all the time or not running? Are the wires damaged from dragging on the belt or pulley? Quote Link to comment https://www.bigmacktrucks.com/topic/34006-engine-code-question/#findComment-222973 Share on other sites More sharing options...
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