mcratchet1 Posted November 7, 2019 Share Posted November 7, 2019 i have a 2003 mr688s 400hp blowing black smoke in bewteen gears truck runs great no problems. New turbo and injectors beginning of this year, should i be concerned or just let her roll? Quote Link to comment https://www.bigmacktrucks.com/topic/59739-blowing-heavy-black-smoke/ Share on other sites More sharing options...
Mack Technician Posted November 7, 2019 Share Posted November 7, 2019 (edited) Sure you have the right injectors or just started doing it months later? That would be a symptom. Watch pyro. Check boost under load. PSI check charge air system. Check soot % on oil change and stay below 3. Gotta love a truck that isn't embarrassed to smoke in public. Edited November 7, 2019 by Mack Technician Quote Link to comment https://www.bigmacktrucks.com/topic/59739-blowing-heavy-black-smoke/#findComment-435412 Share on other sites More sharing options...
mcratchet1 Posted November 7, 2019 Author Share Posted November 7, 2019 no it was doing it before injectors were installed oil sample says soot%0.4 Quote Link to comment https://www.bigmacktrucks.com/topic/59739-blowing-heavy-black-smoke/#findComment-435413 Share on other sites More sharing options...
fjh Posted November 7, 2019 Share Posted November 7, 2019 (edited) check the charge air system if there is nothing odious , check the compressor hose inlet it is likely plumbed into the manifold! common failure! Edited November 7, 2019 by fjh Quote Link to comment https://www.bigmacktrucks.com/topic/59739-blowing-heavy-black-smoke/#findComment-435418 Share on other sites More sharing options...
Mack Technician Posted November 7, 2019 Share Posted November 7, 2019 2 hours ago, mcratchet1 said: no it was doing it before injectors were installed oil sample says soot%0.4 Not an AI engine? Quote Link to comment https://www.bigmacktrucks.com/topic/59739-blowing-heavy-black-smoke/#findComment-435422 Share on other sites More sharing options...
mcratchet1 Posted November 8, 2019 Author Share Posted November 8, 2019 etec e7 Quote Link to comment https://www.bigmacktrucks.com/topic/59739-blowing-heavy-black-smoke/#findComment-435481 Share on other sites More sharing options...
mcratchet1 Posted November 25, 2019 Author Share Posted November 25, 2019 On 11/7/2019 at 3:48 PM, fjh said: check the charge air system if there is nothing odious , check the compressor hose inlet it is likely plumbed into the manifold! common failure! what do you mean by common failure? compressor hose plumbed into exhaust manifold? Quote Link to comment https://www.bigmacktrucks.com/topic/59739-blowing-heavy-black-smoke/#findComment-436614 Share on other sites More sharing options...
Popular Post david wild Posted November 25, 2019 Popular Post Share Posted November 25, 2019 Wouldn't you love to send one of these EPA dirt bags back in time, like about the late 60s and 70s they would have a heart attack when some big truck came just blowing coal, and that unburned fuel at night would make a nice glow, aw the old days. 3 Quote Link to comment https://www.bigmacktrucks.com/topic/59739-blowing-heavy-black-smoke/#findComment-436620 Share on other sites More sharing options...
fjh Posted November 25, 2019 Share Posted November 25, 2019 2 hours ago, mcratchet1 said: what do you mean by common failure? compressor hose plumbed into exhaust manifold? Inlet manifold! Quote Link to comment https://www.bigmacktrucks.com/topic/59739-blowing-heavy-black-smoke/#findComment-436622 Share on other sites More sharing options...
Popular Post Rockwell Posted November 25, 2019 Popular Post Share Posted November 25, 2019 (edited) 2 hours ago, david wild said: Wouldn't you love to send one of these EPA dirt bags back in time, like about the late 60s and 70s they would have a heart attack when some big truck came just blowing coal, and that unburned fuel at night would make a nice glow, aw the old days. No, keep the EPA dirt bags here and send ME back! Trucking was FUN! Made better money and the trucks literally had a soul. My Granddaddy and Daddy wouldn't even recognize what they call truckin today. Edited November 25, 2019 by Rockwell 4 1 Quote Link to comment https://www.bigmacktrucks.com/topic/59739-blowing-heavy-black-smoke/#findComment-436640 Share on other sites More sharing options...
masterwelder Posted November 28, 2019 Share Posted November 28, 2019 On 11/25/2019 at 6:43 PM, Rockwell said: No, keep the EPA dirt bags here and send ME back! Trucking was FUN! Made better money and the trucks literally had a soul. My Granddaddy and Daddy wouldn't even recognize what they call truckin today. Right on! Remember the smell of truck stops? Diesel fumes and hot tube type tires on a summer night. Ahh, the good oll days. Quote Link to comment https://www.bigmacktrucks.com/topic/59739-blowing-heavy-black-smoke/#findComment-436786 Share on other sites More sharing options...
carlotpilot Posted November 28, 2019 Share Posted November 28, 2019 and don`t forget those 260 air conditioners Quote Link to comment https://www.bigmacktrucks.com/topic/59739-blowing-heavy-black-smoke/#findComment-436788 Share on other sites More sharing options...
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