05blackss86 Posted November 8, 2008 Report Share Posted November 8, 2008 My fathers 05 dmax (currently wrecked and getting repaired) is out of warranty with 106k on the clock. Recently noticed while driving it that it has and tendancy to hunt atlower rpms (idling in drive, or on the brake at a light). This problem is bothersome as it feels as though sometimes she wants to lounge foward at a light if your not on the brake hard enough. I know very little about diesels, but realize they have a governor to maintain the idle. I have been told that a governor adjustment could take care of the hunting which i will look into while shes getting fixed however, i was wondering if there are any other issues that could be causing this problem. thanks, scott Quote Link to comment Share on other sites More sharing options...
mike1booth Posted November 8, 2008 Report Share Posted November 8, 2008 electrical serging through a throttle or ignition connector??? idk Quote Link to comment Share on other sites More sharing options...
Fireman31 Posted November 8, 2008 Report Share Posted November 8, 2008 could be a faulty injector pump Quote Link to comment Share on other sites More sharing options...
05blackss86 Posted November 9, 2008 Author Report Share Posted November 9, 2008 could be a faulty injector pump yea Dan, that has crossed my mind considering he has picked up two bad loads of fuel from BP since owning the truck. Both times we ended with replacing two of the injectors so god knows what ran through the pump. He claims that the truck runs smoother after running injector cleaner through it however, the hunting always comes back after a tank or two. scott Quote Link to comment Share on other sites More sharing options...
kissfans03ss Posted November 9, 2008 Report Share Posted November 9, 2008 Sorry i dont have an answer but you might want to try a web site called the diesel place they are very helpful and should know about your problem. Quote Link to comment Share on other sites More sharing options...
thomp62301 Posted November 9, 2008 Report Share Posted November 9, 2008 (edited) try the simple things first. Fuel filter and some diesel fuel conditioner. Could be injectors. GM had a problem with the injectors in the LB7 diesels, but I think they got that resolved when the LLY's came out in the 2004.5 and up. Check the Duramax forums for any info. Edited November 9, 2008 by thomp62301 (see edit history) Quote Link to comment Share on other sites More sharing options...
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