Duramax intermittent white smoke. Whether or not is bad for your engine depends on what the cause of the black smoke is. Jul 7, 2011 · castle duramax Discussion starter. Injectors and HGs are original. Likely culprits are the EBPS and a dirty turbine housing/vanes/unison ring. Truck has 243,000 miles on it and not sure how many on the injectors. #1. Week or so later the injector pump, week or so after that the lift pump. Crank the engine while observing the glow plug holes for fuel spray. 1972 Nova Built 350 w/ 700r4. In the last month the truck has been saying coolant level low as well, I check the bottle and it is 3/4 Mar 5, 2018 · 4) Excessive idle time can cause white smoke when cold due to carbon build up on the injector tips. Your engine is getting coolant or water in the combustion chamber. White haze from exhaust at idle and lots of white smoke revving engine. 5 to 2005. Dec 20, 2015 · 16 posts · Joined 2013. Desired and Actual fuel rail pressure at idle was around 5700psi with only a maybe a 50 psi difference. 21' Silverado 3500HD High Country CCSB L5P 4x4 - Build Thread. 1000 miles later truck is back for exhaust smell in the cab. No codes, balance rates are good. It starts as around 13-1500rpm and it blowing white smoke some times dark grey/black. 5 LB7 Duramax Powertrain Oct 16, 2020 · 1. Started this spring when my injectors went bad, tons of white smoke both at idle and under throttle. 6L Diesel Engine (VIN 2 - RPO LLY) The following diagnosis might be helpful if the vehicle exhibits the symptom (s) described in this PI. While a very few owners have checked in with high mileage LB7 injectors (150k), they are as rare as teddy bear poo. Water or coolant can cause white smoke from a diesel engine as well. Doesn’t blow white smoke any other Jul 13, 2022 · 56 posts · Joined 2021. Jan 30, 2017 · 6. But after I go for a bit of a drive, I notice a bit of blue rich smelling smoke at idle at a stop light, or when I'm pulling back in the garage (stinks it up pretty good!) It doesn't smoke going down the highway, or Sep 26, 2020 · I have a 2011 gmc sierra 3500 LML. No smoke or lag. When I start the truck in the morning, there is no smoke. No white smoke at all when warm. Sat at the stoplight, the whole time white smoke was coming out the tailpipe. 5 w/FOX-Fuel Maverick 20x10s. White smoke is often an indication of low compression. 3 CCSB AFM Deleted - Olympic White (SOLD) G. Dec 3, 2012 · The truck was taken to the local dealership and they said the injectors were fine, but that the smoke out of the tail pipe after warming up was caused because of injector nozzles. additive doesn't help still smoking like hell. 08 LMM. A little black smoke is normal on a properly functioning diesel engine, but Aug 18, 2008 · 2. This actually is not white smoke but atomized diesel fuel. Bone Stock because I like it that way! Apr 3, 2020 · Balance rates are also back and exactly where prior to this hiccup. Normally an indication of low compression in at least one cylinder. This black soot is the main thing that the DPF filter is Dec 11, 2010 · Dec 10, 2010. Dec 23, 2010 · You will only notice during regen and if it is regenerating and you come to a stop. This issue may be due to a blown head gasket or cracked engine head. Among them, clogged fuel filters, faulty injectors, and transmission fluid leakage are the most common cause. My fuel desired and actual jump around and do funny stuff. #1 · Dec 20, 2015. White smoke can be a indication of unburnt diesel fuel. When coolant leaks into the oil system, it diminishes the oil’s lubricating ability, which can damage your engine. #3. #1 · Dec 16, 2017. #7. Coolant leaks can lead to a rough, choppy idle and reduced engine power. 6. Posted by u/Dapper_Marionberry97 - 1 vote and 8 comments Jun 12, 2005 · 437 posts · Joined 2004. Recently, white smoke has come out of the tailpipes upon hard acceleration. I had the fuel filter changed and the problem went away. It got worse. May 4, 2022 · 2016 Chevy 2500HD LTZ 4X4 CC/SB 92k-AFE Intake, Cognito UCA's, Fox Shocks, Leveled on 20in XD's wrapped in LT285/65r20 Ridge Grapplers 2003 GMC 2500HD 4X4 CC/SB 113k, Injectors at 100k (SOLD) Dec 13, 2006 · All, diesel will blow blue/white smoke, at idol. All the same situation. It clears up in a matter of seconds. it will seperate on the towl. Sep 21, 2015 · 394 posts · Joined 2012. threw low FR psi code, fuel in oil. 9. Jun 6, 2012 · I did some research and discovered the cooling problems with the lly so i ordered the lbz inlet and banks cold air intake. It has All new injectors new seals new left lower valve cover. Okay, my truck has started that dreaded white smoke at idle and at hard acceleration. 1. 5-2005 (LLY) 6. White/greyish smoke is usually a sign of a degraded DOC. I came up to a stop sign down a hill however did not have engine brake on. Smoke tested the pipe( evap smoke machine) found smoke billowing out of the pipe behind the heat shield. May 18, 2015 · Most people are seeing white smoke on start up or cold weather starts. 180* is normal operating temperature. Nov 11, 2014. i noticed some white smoke. #6 · Oct 1, 2010. Nov 2, 2015 · Blowing white smoke is a red flag for your diesel engine, yet we see this happen all the time to our customers. Mainly because it is intermittent. I did have a P0116 code set (Engine Coolant Temp) but that cleared and has not reset. I was pulling my trailer today to pick up some lumber and was driving in trailer mode. One common cause of white exhaust smoke in your GMC Sierra is a coolant leak. Toyo R/T 35x12. I’m running a 15 LML tuned/deleted and exhaust. #23 · Apr 4, 2008. If I stop and shut off the engine and wait about 10 minutes an start up again, the smoke disappears. I have a 2004 GMC Sierra with a Duramax/Allison. Jan 4, 2019 · Most all vehicles will roll white smoke where the humidity is high, but should clear up when warm. I have not noticed anything like this in the past. 7. No smoke other times, and does not smoke when cold. Black smoke is from fuel left unburnt during the combustion event. 9 posts · Joined 2011. It blows consistently until I let off the gas. Well that was several years ago. I was told, "just be glad it wasn't Oct 27, 2022 · The smoke smells like exhaust, not oil or coolant. My oil now after 7500 mi is clean enough to see Feb 23, 2021 · Okay guys I need some help big time here. 11. And we only replaced the injector cup o-rings on the one that came out. I have replaced the fuel filter already and don't show any codes for possible misfires or injectors. May 9, 2018. This is a symptom of a bad problem. truck would crank and start for a couple seconds, knocking out of control, intermittent white/black smoke for a few seconds then dies. 0. A thick cloud of white smoke. Jun 3, 2013 · Injector Cleaner and White Smoke. My problem is that everytime i stop at a light and the truck is idling it starts to puff white smoke then when i start to drive it stops and turns to black smoke. I associate blue smoke with oil burning. 8. Inspect for contaminated oil or high oil level. A little white puff isn't an issue, it's steam from the warm air hitting the cold in the exhaust. Tried using a fuel injector and octane booster ran on a 1200 mile direct trip pulling 12,000 lb 5th wheel. If the injectors have excessive carbon on the nozzle tip then balance rates should be high on that cylinder. Jun 25, 2018 · Symptoms: - Rough idle after being started- usually after a minute or so. BDS 4. You should do this-- fill the coolant reservoir - drive the truck with a couple hard runs- then park it over night- check the top radiator hose in the morning --before you start it- if it is firm like a tennis ball-- you may have a bad head gasket . 50. I have a 2010 TDI with 285,000 miles on it. SDP 3" Y bridge, 5" intake. In many cases, white smoke emanating from the tailpipe (often at idle once the engine reached operating temperature) typically means a worn out injector. i was getting on the freeway today after the truck had been running for an hour and a half or better. I don't know if its what caused it. On any of the bigger tunes my truck will let out a small puff of white smoke after hard acceleration. Dec 25, 2014 · New member. May 9, 2018 · 0. And then when she kicks into high idle she really starts blowin hahaha. this exact thing has happened 4 more times in the last three weeks. Lately though it will intermittently dump large amounts and lag bad. Aug 18, 2015 · 253 posts · Joined 2014. My Duramax LB7 has been smoking white smoke at idle, constant flow every time I stop the truck. Oct 17, 2023 · I have cross posted this in the Duramax Forum. I am getting dark grey smoke (visible in mirror) on heavy acceleration. In terms of LLY injector problems, GM had sorted out the internal failures with the 2004 ½ redesign, but the LLY Duramax would occasionally exhibit a trouble code for the injectors, but in most cases it turned out to be an issue with the injector harness rubbing through and causing a short or open in the wiring. #9 · Apr 25, 2014. One way to rule it out would be to use the DVT and control pressure. #1 · Sep 21, 2015. It seems to appear when I'm driving at very slow speeds of 10 to 15 miles per hour for a long time. Checked reluctor wheel (tight and no Sep 30, 2010 · harry6. previous: 2021 LM2 CC std box 4x4 ; '18 2500 L5P CCSB 4x4; '11 LML, '10 LMM and 04. 5 LB7 Forums. 3. I’m not throwing any codes ( unless it’s Dec 21, 2021 · Hi! So, I’ve got an 02 duramax with a white smoke problem that I’m at my whits (and my wallets) end with. 08' Silverado 3500HD LTZ CCLB LMM 4x4 - Build Thread. #13 · Aug 14, 2015. Black smoke is the most common type of smoke that is emitted. All gauges read fine. I unplugged my maf sensor today and truck seems to run much better. Dec 5, 2018 · If that is the case you'll want to fix that ASAP as it can cause the crankshaft to snap if running unbalanced. Fuel Filter Replaced/Filled with Diesel Kleen. If temps are really lazy to build between 500-700 and this is when it produces the smoke, it is DOC time. #1 · May 6, 2023. Jul 9, 2019 · stevewaclo. Found out egr system not deleted and only driverside plugged in pass was disconnected. Clean or replace the injector and recheck for temp increase during a forced regen. A bad injector that white smokes will not show up on the balance rates. When this happens the truck will not allow rpms over 2000. If it sits over night it smokes just one pretty good size white cloud if it's sits for couple hours it doesn't smoke white at start up. Codes were coming up with cylinder 5 misfire. #5 · May 20, 2014 (Edited) If the smoke is fairly gray then I would pull the #1 injector and replace it. - Will run rougher on deceleration until about 10 MPH Sep 11, 2009 · 44 posts · Joined 2008. Then turn off controls and watch it come back in about ten seconds. Maybe someone did a DIY injector job on your new ride, which would explain no paper trail. 05 LLY, has had the head gaskets done recently, ARP head studs, new turbo, built suncoast trans EFI and every supporting mod you can think of. When installing, place the gaps of the v-clamp away from the original leak area if possible. Red alert This is the danger zone. Once in a while my truck will puff out a little white smoke, about once every couple of weeks while idleing. #11 · Nov 23, 2007. Mismatched injection time may cause engine explosives. Dec 16, 2022 · It’s an 05 LLY, EFI live with DSP5 switch, stage 5 tranny, PCV reroute and 10 over injectors. Since the issue is intermittent you can likely rule out a bad May 1, 2014 · 3303 posts · Joined 2011. 2008 2500HD LTZ, EFI Live- Idaho Rob's Tunes, 4" Magnaflow Turbo Back, Raptor 150 Lift Pump, Transgo Jr, All Season Diesel EGR delete with high flow Y-bridge, Edge Insight for gauges, Like. Dec 16, 2017 · D. clrussell said: $10 says the egr (even though turned off in the tuning) is still plugged in. Truck runs fine, but after long hard highway run, exhaust shows white smoke at idle. only about $40 bucks from the dealer. When its cold, diesel does not burn well, so it will blow smoke for awhile, it does not mean your injectors are bad, just had mine replaced, and it blows smoke for about 5 min, or so. Jul 23, 2008 · HighSierra86. #1 · Sep 11, 2009. The potential causes include fuel injectors sticking, poor turbo performance, EGR valve or EGR cooler issues, dirty air cleaners causing heavy restriction. More than 20% idle time is excessive. Ran rough almost like it was missing and no power. Will set a code though, but will help as a starting point for diagnosis. 174 posts · Joined 2009. 5. Jul 4, 2021 · White smoke is normally indicative of lean mixture or perhaps contamination into the engine such as oil or coolant. #5 · Jul 26, 2008. #1 · Jul 17, 2011. -Jimmy. drp driver side charge pipe, drp fuel sump. Apr 5, 2013 · White smoke and a loss of power is overfueling due to a lack of boost. 001 parts of fuel after 8,000 miles on the oil. Ran 1 gallon of 2-stroke oil through a 1/2 tank of fuel, no change in the knock. 2012 GMC DENALI CREW CAB DURAMAX. 2015. 2L Diesel Engine Fuel System, Air, Exhaust & Emissions Upgrades Top Contributors this Month View All Aug 15, 2014 · If only one injector is stuck open or hanging intermittently it will cause the truck to run very rough and usually have visible smoke but still be drive able. when i applied about 3/4 throttle the truck blew enough blue smoke to "black out" the on ramp. Let us know. - Any throttle and it clears up. Michael. I did them again and in the process the #7 injector connector started Nov 2, 2012 · Ted White. Long story short: It doesn't happen all the time, only at idle when stopped at a light in town. No lights on dash and all gauges seemed fine. The guy I bought my truck from said that they already replaced the injectors before 200,000 but had a local shop do the work (truck was an old irragation truck). Its Normal. I replaced the injectors and the problem was gone. Jan 9, 2016 · Im getting a P0236 Low boost code. 4. Summit White. - Runs well, not down on power. Apr 22, 2019 · 10. I am watching the data on my PPE tuner and my MAF is usually at 35-40 at idle running good. 5L Diesel Engine Duramax First Generation: 2001-2004 (LB7) Duramax Second Generation: 2004. As rust particles easily contaminate the diesel engine injector, it blocks the spray tip, which causes injector closing problems. White smoke your seeing is unburnt diesel fuel from the 9th injector during regen. Someone told me that it may be a faulty injector. Replaced them all. if thats the case injectors are suspect or possibly the fuel return lines inside the valve covers. Id check all your vaccum lines and try a new solonoid. After its warm it clears up, if warm and idling/driving and i rev it a bit I'll get a white puff. DPF traps soot (black smoke). My engine has been having a stutter as I rev up both driving and stopped. Dec 2, 2022 · I'm thinking the drop in duration is directly related to the increase in fuel rail pressure. 2L Diesel Engine Top Contributors this Month View All Sep 6, 2013 · I have smoke once my truck warms up to about 180 degrees and have the p0380 code. - Changes from rough to smooth idle in park occasionally. Bellowing white smoke during regen is NOT NORMAL, except when using higher sulfur fuel, which is no longer available at pumps in the USA or Canada. After reading all these cracked piston and shortened rod threads I am a little nervous something is wrong but its comes and goes with no codes and nothing abnormal with the gauges. Unplug both egr valves, one by the firewall passenger side. Gonna monitor everything to see if theres an underlying issue but I suspect bad fuel. Nov 19, 2012 · Then today it happened again! A plume of white smoke for just a little while then stopped. Sep 22, 2016 · This smoke is sometimes white-light gray and sometimes black. B. With a unknown and probably very second rate aftermarket system installed it is going to be very difficult to diagnose what the issue is as most of these tuners are awful at best. Today while driving, I noticed white smoke as I accelerated from stops. 01-04. I stop for fuel, leaving the truck idling while filling, and when I pull out of the station the truck starts pouring white smoke out the tailpipe and there is a noticeable Apr 29, 2017 · Even though you aren't showing any CEL lights on the dash, you ECU should have some codes in it if the truck is running that bad, I would try and plug in a code reader to see whats all stored in it. Possibly leaking. So I admit, running a lot of injector cleaner in fuel, took a long trip, (1800 miles), added Power Service Diesel Clean every time I filled up. Install the gasket (1) and updated exhaust clamp (2), and tighten the exhaust clamp between the downpipe and the turbocharger exhaust pipe as shown in the pictures above. Oct 13, 2011 · New fuel filter. Heavyd, Feb 15, 2023. It is an air/fuel mixture problem. #2 · Nov 10, 2013. 5" mbrp full dp back straight exhaust, mbrp 5-6" tip, fass150 Jun 16, 2010 · My truck is an 03 durmax 6. Ramp it up 1 kpa at a time until it goes away. 3052 posts · Joined 2008. I have had this happen to be twice so far. Clean filters throughout. Any troubleshooting advice would be greatly appreciated. I decided to delete and shut off the egr. SOLD 03 2500 built trans/efi/leveled. 2. I need some help troubleshooting a mysterious white smoke condition my truck has recently started producing. Oil is about 1/2 quart low at about 3500 miles. May 2, 2016 · 2015 LML White Smoke and Power Loss. 5-2005 (LLY) Closed / Archived Marketplace Ads 6. Jul 17, 2011 · 228 posts · Joined 2010. they can crack sometimes and leak into the Nov 10, 2013 · 280 posts · Joined 2013. Had this problem on a new truck, ordered a new pipe, which was on backorder. Oct 1, 2019 · However, their theory is that white smoke (which, on a diesel, white smoke usually mean sunburnt fuel is getting past things, thus why you have white smoke) is coming from the 9th injector on their trucks (as they have a V8, they have a 9th injector, whereas we have an I4 so we have a 5th injector inline on the exhaust) when it goes to add fuel May 17, 2014 · MTL_Dmax. Condition/Concern: Customer concern may be a low speed surge (8 to 10 mph or near 1000 RPM), acceleration fuel knock noise at 1700 to 1800 RPM, rough idle, white smoke Oct 1, 2012 · If you want to wrench a bit, pull the air inlet to the turbo, reach in and spin the turbo wheel, pull/push checking for end play, and wiggle side to side checking for a bad bearings. May 10, 2015 · Injector return rate test, all 8 well within GM spec for return fuel. The last time it happened, there was an engine vibration too. Pull the oil fill cap off see if it blowing out there any when running. Also, it recently happened upon start up after Oct 27, 2013 · When the engine is cold and the compression does not create a high enough temp in one of the cylinders the "white smoke" comes out the exhaust. I will be on a long trip to the mountains pulling sled on a trailer and I will stop for fuel. ARP bolts in heads and exhaust. I then drove it home 7 miles and let it Idle for 10 min, It Idled fine and did not smoke a bit. It's also got a pretty loud knock around 1700 rpm, but that could just be regular Duramax sounds, I wouldn't know. Oct 7, 2008 · At the same time it was puffing white smoke. Aug 9, 2012 · T. Dec 11, 2018 · I have a 2003 LB7 with 310000kms on it. Or pull out the egr valve and see if its wet down inside. If it is, then your egr cooler has failed. Jan 29, 2016 · If you have changed the injector and still have a problem, it sounds like you may have a mechanical problem. I pulled an oil sample and it showed . #1 · Aug 9, 2012. If it is not using these, then it is a lean mixture. #2. This is bad could cause a hydro lock it's referred to as. Ya that sounds about right, My truck smokes like a bastard on startup in the cold, today was especially bad, tho its more of a blueish smoke. Like. The last time it did this, I ice picked the #2 and #7 injectors and the problem instantly went away. '16 Chev 2500HD LTZ Z71, CC, Duramax, Allsion, 4wd, new Sept 2016, has factory fifth wheel prep so added a Curt hitch. 2005 LLY, (minty) 228,000kms and counting, 4-inch mbrp straight pipe, Superchip, afe Nov 20, 2007 · 1241 posts · Joined 2007. I have a 2006 LBZ with a 68mm garret turbo, 45 over exergy injectors, built bottom end by Callie’s, 10mm cp3. Turbos usually dont fail in stock trim. 2007. Thought maybe egr sticking but not the case. #1 · Nov 21, 2011. Equipped with 6. Duralodo Discussion starter. This happens mainly in mornings. #2 · Feb 11, 2018. Jul 16, 2011 · White smoke is almost always caused by bad, or sticking injectors. Oct 10, 2010 · Oct 10, 2010. My truck has always made small amounts of black smoke at wot. 5 Silverado 2500HD LTZ CCSB LMM Duramax - Triple Black (SOLD) 2008 Silverado 1500 LT 5. I left the truck running and when I went to pull out of the station white smoke covered the two lanes beside me. Not sure what to do, need to figure it out as its my main truck I pull trailers with. If the stick smells like diesel, 90% of the time its injectors. #1 · Jul 7, 2011. A week ago my truck started to shudder/ surge at idle and blowing white smoke. My lly has been smoking at start up . #1 · Mar 1, 2020. Remove the glow plugs. 5 Chevy 3500HD LTZ Z71 CCSB SRW. 5 LLY. I recently replaced the head gaskets in my (NEW TO ME) 05 duramax 2500. The intermittent boost problem sounds to me to be the wastegate solonoid. Replace the fuel injectors for the cylinders that spray fuel. I have tried turning one injector off at a time with the Tech 2 and waited for the knock. Also when running rough, the boost reading (Map/boost sensor on intake horn) Goes from idle 14. Ive owned my lmm for two years changed oil at about 4000 mi, Black and stunk of fuel. May 17, 2016 · Got it back to the shop and read code p2690 injector #5 calibration incorrect, but would start and run rough. If a squirrel was in the wiring, the could be other intermittent wiring faults that were not occurring when the injector wiring fault was found. Not long after launch of the 2011s, there was a small bad batch of 9th injector nozzles which caused white smoke during hard acceleration. 2013 gmc sierra 2500hd. 2023 LZO CC std box 4x4. Truck starts, idles and runs fine and the mileage has been consistent. #11. Aug 1, 2016 · Stopped to fill fuel while towing a fairly large load. 5856 posts · Joined 2010. $5,000+ at a dealer, somewhat less at indys and maybe $2500 DIY. I got it all back together. Apr 28, 2010 · 2001 LB7 Continued Diagnosis of Idle Smoke. It may be clogged a bit and not letting enough fuel through. After that you should recheck rates again with the engine fully warm in park/drive. Aug 14, 2015 · 8909 posts · Joined 2011. Now this isn’t always the case, but after some trouble shooting we’re Normally, an engine burns fuel completely and emits water and CO2. now Codes p2690 still, p0366. 7 down to 9 or 10 psi. No smoke at start up or idle. Getting on the throttle clears it. I need some help. #1 · Jun 27, 2015. So a injector could be stuck open dumping fuel into a cylinder. I'm sure its not an issue, but when idling in the cold i get steady white smoke til its warm which I'm sure is normal. DRP S475/stock charger kit. You could try unplugging the egr valve electrical connector, see if that helps. Balance rates are well within spec. May 11, 2019 · Coolant Leak. greatwhite93 Discussion starter. I can goose it and get a small black puff but i have to really get on it for that. 2) Injector return lines are under the valve cover on LB7 engines. 5 GMC Sierra 2500HD Denali LML Duramax. #1 · Jul 13, 2022. Nov 8, 2014 · Connecticut. No engine sputter at all. I would check the compression on that cylinder to eliminate low compression as a cause. Air in fuel Feb 11, 2018 · Dave NY. 241 posts · Joined 2013. truck issues started out when my light for change fuel filter came on and the truck started to run like it was on 6 cylinders but then cleared up after about 5 minutes of driving on the highway. Dec 8, 2009 · It still would puff white smoke just on startup after sitting all night when cold outside. Make sure to get a legit Bosch reman (I get mine from LDS as they have great service). So recently I’ve had this intermittent issue. From everything I've read, there are a ton of things that could be causing this. I was pulling my gooseneck trailer with a shipping container on in and I felt a rumble, then tons of white smoke from exhaust pipe. I was pulling a trailer up a hill and loss of power and black smoke. White smoke could be a sign of the PCV valve leaking oil out of the crankcase and into the intake/turbo. When I start the truck when below freezing, the truck puffs white smoke just on startup when cold outside and clears right up even while idling cold, just puffs for first 2 seconds. The problem seems so bad that people move from behind me to pass and stay out of the smoke. #15. 06 factors cause the white smoke. If I hit the gas It would lose more power and deep black smoke (ALOT!). The fuel went into the engine but did not ignite. Sep 29, 2010 · Sep 28, 2010. when i accelerated it poured out white smoke for about 5 seconds. I smoke people out at stop lights. It has 78k miles and I'm curious if anyone knows what might be going on. Leveled, Deleted, and Tinted, 5" Flo-Pro SS, EFI and Fass 150 Build. All 8 injectors still knocked. In fact, if I hadn't looked in the mirror I would have never known it happened. 17 posts · Joined 2017. It smokes worse longer it sits . A few days ago I was towing a mini excavator and was stopped at a quick mart and all the sudden alot of white smoke came out for about 10 seconds then stopped and has not smoked since. I am not loosing any coolant and it's not putting any noticable amount of fuel in the oil. Brown plug in, yellow safety lock. I now know what to look for when i buy. but more than likely we all know my injectors are most likely shot. i noticed fuel filter is very old, im going to change run a fuel systems psi test to eliminate leaks, bad fpr etc. May 6, 2023 · 13 posts · Joined 2014. 378 posts · Joined 2006. Faulty Injector. Aug 24, 2005 · 2004-2005 GMC TopKick. fleece powerflow750 4"downpipe and charge pipes. It is at 25 when running rough. You can almost feel the Idle not being very smooth on the truck as if the Fuel Pressure Regulator was not working properly. Probably 60-100% throttle. If the tailpipe smells like raw diesel there is a good chance its injector issues too. 2013 Chevrolet 2500HD LTZ Z71. . Mine does till all the way at temp. This is caused by a compromised part of the engine that has the flow of coolant in it. No boost would lead me to believe vaccum pump. Stop at a light/stop sign/ idle outside the store for a min, and when i go to give it some throttle it will barely pull itself. The balance rate show the volume of fuel at idle being put into or taking away from each cylinder to create a idle. I have seen the same problem with intermittent white smoke some of the time, while other times there is absolutely no smoke. Apr 18, 2014 · 148 posts · Joined 2011. no power loss and drives fine. - Idle smooths out in gear- Drive or Reverse, will do it but to a lesser degree in Neutral. I have a mini max tuner and egg delete as well. This is my first diesel so please be patient. But it did sit for a week and it smoked white for about 10 Aug 14, 2020 · Duramax Engine LLY 2004. PPEI Tuned, 5" exhaust, Airdog 4G, PPEI intake, EDGE CTS. #4 · May 2, 2014. Now a few weeks ago I had thrown the FPR Code p0089 (while it was smoking at idle Apr 15, 2017 · No power and fogging white smoke for about 4-5 secs then came right out of it like nothing happened. Coolant level is good. Replaced injector # got worse. I didn’t do PCV reroute but did install a catch can, it had maybe a teaspoon of oil in it. Once I reach speed no more smoke visible. 0. TecateRay Discussion starter. I have an Lml with a Black maxx and a 4 " dpf delete exhaust. Mar 27, 2021 · Hello I am new to the page. #1 · Jun 12, 2005. smells like unburned fuel and is white colored. All replaced. If the vanes get stuck, or are not commanded to the proper setting due to these issues you will get exactly the symptoms you describe. The white smoke puffing happens everytime i stop and the truck is idleing Dec 3, 2014 · Feb 4, 2009. I noticed my 2016 Duramax is blowing blue smoke on hard acceleration at times. Nov 21, 2011 · 169 posts · Joined 2007. When I have my tune up all the way (position 5) and I get on it it will sometimes blow black smoke, sometimes it’ll be mixed with white making like a grayish color, and sometimes it’ll just be straight white. Important: Do not stand in front of the glow plug holes while cranking the engine. If you are having to turn the truck off and back in to make it run right it makes me think it's more of the injector harness losing connection with the injector. 01. I'm experiencing white smoke from exhaust and engine compartment, but not all of the time. Black smoke indicates that something is causing the fuel to only burn partially. May 28, 2015 · Seems too soon for a bad injector, maybe check the EGR for a leak. Truck went into limp mode, white smoke. if there is fuel in the oil it will look like a little circle around the oil spot. try taking the dipstick and dabbing the end on a white papertowel. May 13, 2015 · White Haze/Smoke. 22ft lbs was in a manual that the owner had printed out. Apr 22, 2013 · Chevy / GMC Duramax 01-04. It doesn't happen all the time. #1 · Aug 18, 2015. Jun 27, 2015 · 8 posts · Joined 2012. 6 I think 120,000 started smoking at about 100,000 and getting worst. I went with an economy tune and a heavy tow (1 switch) turned on engine brake and had it pull down to 1500 rpm. Fast forward to last week or so. Jul 10, 2021 · 6. Immedialty after installing, the truck will intermittently loose power and emit an enoumous amount of black smoke then clear up. I had the same problem. Also check oil level and smell for fuel and take a paper towel and let the oil drip on it from the dip stick see if there is a ring that is lighter in color then the oil dot that will also show if you have fuel in you oil. I have a 2004 LB7 with 212,000 miles that is smoking a bit when idling and when I'm coming of the road to and from work. Mar 30, 2008 · 117 posts · Joined 2006. Mar 1, 2020 · 93 posts · Joined 2020. Have a Titan 43 gallon tank. I have not lost any coolant (that I know of) and all my injector balance rates are within the specs. Oct 18, 2020. One driver side front. rk pq hj tk nt ub gn he wu na