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MarksDuramax2004 08-07-2004, 04:54 PM A loud knocking is coming from the left side it dose it when its cold and warm. It has acked like it's going to die then kick back in. Any one havin this probles? what could it be? I just put my juice/Attitude in last week could it be somthing from that?http://www.dieselplace.com/forum/smileys/Disapprove.gif patrick 08-08-2004, 01:05 AM may be a bad injector... MarksDuramax2004 08-08-2004, 01:08 AM what's some of the thinges you see with bad injectors? GMC2500HD 08-08-2004, 01:12 AM Could be the Juice, could be a bad injector, bad fuel, clogged filter.... How many miles are on your truck? Have you changed your fuel filter lately.... I had mine hooked up to a TECH 2 today and realized that I need to change my filter. All the signs were there. MarksDuramax2004 08-08-2004, 01:25 AM got about 7,100 miles on it alreadyhttp://www.dieselplace.com/forum/smileys/Disapprove.gif No i havinet changed any filters on it yet was going to that this month. the fuel i have filled up a few times i dont think it is the fuel tho.but i could be wrong. MarksDuramax2004 08-09-2004, 07:17 PM I just talked to my dealer they said the Knock is from a Clog fuel filter? Why would that make my truck Knock any one no? patrick 08-09-2004, 08:35 PM doubt it is cloged take the advise and chaned it with 8k miles its good advise. is the truck smoking. I would think its and injector. MarksDuramax2004 08-09-2004, 08:54 PM It will smoke if i push it will see a littel back smoke. My dealer said it will smoke becouse its under a load. Or are they just tell me that? where they dont have to fix it? White Duramax 08-09-2004, 09:48 PM Change the filter and see what happens, but I bet you have a bad injector. A new truck like that should not smoke. MarksDuramax2004 08-09-2004, 10:00 PM Thats what i think to. if this dont work out i might just want to go to a new dealer. The one im at now there supposed be the bigest diesel shop around. White Duramax 08-10-2004, 10:13 AM I would probably do to a different one if they are giving you the run-around. What dealer have you been going to? MarksDuramax2004 08-10-2004, 10:27 AM Voss in centerville ohio. They give me the run around on my last truck the motor was knockin BAD they said there wasint anything wrong with it. so i picked it up to it to aunther dealer that day they told me that i needed a new motor! dmaxalliTech 08-10-2004, 11:01 AM did you take the edge back off ?? If not, start with that. GMC2500HD "I had mine hooked up to a TECH 2 today and realized that I need to change my filter. All the signs were there. " What in the world did you see on a tech-2 that told you that?http://www.dieselplace.com/forum/smileys/Confused.gif Other then perhaps fuel pressure would not build, but I am curious as to what "all the signs" were Edited by: dmaxalliTech MarksDuramax2004 08-11-2004, 12:35 PM Got my truck back last night and they put new Fuel filter on said that was the problem. Went out to my buddys place last night and the knockin is still there. http://www.dieselplace.com/forum/smileys/Disapprove.gif It just dose it some time's. I have no cule what it is. maynard9089 08-11-2004, 03:43 PM MarksDuramax2004- Is this truck an LLY? If you do a search you will find that many are having an idle/smoke issue with the LLY's. My truck was diagnosed with a bad injector and it is considerably louder than before. I would even call it a knocking noise. They are trying to locate eight new injectors for my truck but tell me it will be about 3 weeks. Im still driving it now. According to the Duramax Quality Manager at GM it will cause no ill affects. Have your dealer check the balance rates on all eight cylinders while the truck is in gear with the brake applied. My truck was within specs in park but was way out when they checked it in gear. | ||