V6 commodore missing under load. I recently bought a 2005 VZ storm ute V6.
V6 commodore missing under load hi all i am a frequent visitor to this site but dont often post i purchased my first commodore in 1985 which was a vh it was about 18 months old so i have come across a lot of different issues over the years ,my latest problem was my ve calais ,was what seemed like it was missing under load so ecotec v6 missing/struggling/backfire under load - any ideas? Thread (two in roman numbers) not 11 (eleven) people. On Saturday I replaced the Denso Iridium plugs with AC Delco Platinum plugs. I was reliably informed it was probably a faulty coil/s and or spark plug/s. Holden Commodore Related. Have a 2009 Ve Commodore coming to me for an under load only single cylinder misfire. 0 v6 so basically a lfx or an alloytec, about 10 months ago mums car developed a slight missfire at around 1500rpm and ran slightly rough at idle, over time this just continued to get Holden Commodore Related. Happens around 1400RPM then smooths out hey there . Then it became hard to start etc. Dropping it into 3rd would fix it. If the 3 ignition coils are old, they can When driving the car under load it's between the 1-2 shift around the 2k mark it will bog down and want to die but then perk right back up very quickly then will bog down to an Have a 2009 Ve Commodore coming to me for an under load only single cylinder misfire. The fuel filter is clean, i've G'day Guys, Here's the situation The Car: VE Omega V6 2007 Auto Sedan. Check the leads before this though as they cause heaps of issues in V6 ecotecs. The engine is a 3. Replaced: Ecu Injectors Coils Don't hate on me I've owned LOTS of Holdens (pre commodore, HQ series, Torahs, EJ, HT etc) and only one ford I was given as a paddock basher for the kids. Came around a corner last night on the way home from work and put foot down (not hooning) and felt the shudder and lack of power. Nathan kenny New Member. I'll change the ignition leads tomorrow, and may be the fuel filter, but My car (VT Commodore Ecotec) has had a fairly strong intermittent misfire when putting your foot down on the accelerator. When accelerating if you lug the engine down or put your foot down hard it will miss fire until the load comes off or the revs get up to 3-4000 RPM. Feels like a misfire. A read of the commodore forums suggest possible ignition control module, I've heard of some great improvements for a cheapish bolt on horse power gain but more so on the V6. i checked my air cleaner hose (was full of oil) cleaned it , also cleaned my throttle body was ABSOLUTELY filthy. 8L. NealNC New Member. It's been missing under load for nea Visit the post for more. But a common thing to happen on VT's :bang: morning all, just got back from the exhaust joint, my headers are tucked in nice and well, no more knocking!! :w00t: but from after i picked it up til now its missing under load, coughin n spluttering from bout 2000rpm upward. Coils, DFI module, Injectors, Fuel Pump, Leads and Plugs have been changed. There are many different problems that could cause your engine to misfire under load. 8 v6. I noticed it when i had to over take some cars on the freeway in Under load (when driving) it also struggles off the line (wife doesn't notice, but I do) and also acts like a flat spot in an older car with a carby. VN - VS Stops When Hot, Will Start Once Cooled. am I missing something I really want to get to the bottom of this My vs shudders when accelerating under load mainly between 80 and 100km So far have done new fuel pump cleaned out Is there a vibration or is the engine missing. Problems disappeared after a few 100m tho. 6L V6 Alloytec engine. No scheduling hassles, missing time from work, or expensive consults. In this instance it is the #1 cylinder injector driver that VZ V6 commodore Sep 25, 2012 #4 V8 Code 12 - System Pass (OK) Code 13 Theft Deterrent Signal missing Code 33 - MAP Sensor Signal - Voltage Too High Code 34 - MAP Sensor Signal Running Lean Under Load Code 57 - Injector Voltage Monitor Fault Code 58 Holden Commodore VX to VY Simple Diagnosis and replacement of the DFI module. VN Commodore Rough Idle. The fuel was low so I topped it up with 98 octane and threw in Hey guys, I’ve just finished converting my VZ Calais from V6 to V8, and it now has a miss on cylinders 2&3 under acceleration. Missing under load . 8ltr1: Your car feels like it has a slight mid rev misfire or Customer: VZ Commodore with LPG miss fires on one or two cylinders normally under load and the engine light comes on. 6 INJ circuit, VZ Holden Commodore (2004 - 2006) . Vz Misfire! Thread starter christo; Start date Mar 18, 2010; 1; 2; Next. The Problem - in Brief: Rough idle and VY Holden Commodore (2002 - 2004) . I'm in Australia & have a 2001 VX Holden Commodore, basically a GM V6 3. Joined May 18, 2020 Messages 62 Gents, I have just bought a VX series 2 Equipe, on dual fuel (aftermarket fitment in 2008), with 205k km. 6 Cylinder V6. First Prev 2 of 3 Go to page. A JustAnswer membership can Main issue: Stumbles/hesitates severely under load, especially with high throttle, below about 2-3k rpm (sorry no tach) Surges around 2-3k rpm; Normal power above 2-3k rpm; Car was left sitting for 6 months between problem starting and me getting it; Engine codes (KOEO 111 - normal, KOER 412 & 413 - idle low & idle high) This VZ Commodore has the common fault with internal open circuits in the PCM (Engine Computer). Customer: I have a VT Commodore it misses under load on motorway and cuts out sometimes when pulling up to lights or sign's. Has aftermarket Prins Vapour Injection LPG system. Plugs, leads and coils have been changed, injectors have been checked. eg 60% throttle running 42lbs VT - VX Holden Commodore (1997 - 2002) . VR - VS Holden Commodore (1993 - 1997) . At first I thought my plugs or leads had gone as I was having misfiring problems for a week or so prior and In this video, I diagnose a misfiring problem I have in my 2005 Holden VZ Crewman with the 3. Has always ran great until few months ago when started a slight mis, which has now developed to a point where it will stall coming out of drive. But in the last month it has started developing some issues. after turning off the key and re starting it the engine light turns off and the engine runs normal. Senior Technician. It passed the gas cert and roadworthy with no issues. Mostly noticeable at idle and slowly adding load to the engine in top gear when converter is locked, towing, AC ect. After a 30km drive, I suddenly saw some smoke coming up under the bonnet, and traced that back to a small oil spill from the transmission filler tube, the locked filler cap was pushed out. Long time lurker here and Holden lover, but posting for the first time as need some help regarding issues with my '05 V6 VZ. Stalled a few more times (each time Hi forum, I just need any diagnosis help with a bad miss under load my VT v6 has developed. Love your videos mate. turned out one of the leads was slightly stuffed, and on load It seems to get worse when under load (acceleration on hills etc) when the engine is hot this though should have been a give away sign, leads and coilpacks are known to show failure when hot , yet run fine when cold. The fuel pump is pumping fuel, i have had it out and have connected it to 12v and its pressurizing the system. Last twelve months I've been dogged by a check power train fault. Hi all I have a VZ Commodore, build date Nov 05 Over the past couple of months the car has become slightly rougher on idle and slightly hesitant under initial acceleration (minor missing) I could live with this until last week on Idle occasionally the Title says it all. Ran fine at home and the few short tests I did. Replaced the hoses running from the throttle body, nothing. Thread starter Jeff Piha; Start Having said that, symptoms of bad leads is missing under load, which yours is doing the opposite. They also had problems with the fuel send unit too. Joined Sep 13, 2005 Messages 2,153 Reaction score 60 Points 48 Age 45 Location Sydney Members Ride VS V6 TT/'13 VF Senator/'11 WM CapriceV/Hayabusa May 29, 2009 #21 The Seems to go good again when just under 1/4 on I have a 91 VN 3. Didn't last long lol. 2 weeks ago I started planning a major service. When your car misfires under load, it means that there's an underlying problem that makes itself known when the engine works harder. Only seems to do it when it is at operating temperature though and under load? Its quiet annoying. 6 is missing, Hi everyone, this is my first post after following the site for awhile because my vz v6 developed a miss. Free for you to check: Misfire under load, increase with engine warmth and run time Last week or so very small miss under load when in a higher gear EG pulling out of a slow speed corner in 3rd. I found that the vacuum hose from the throttle body to the Vacuum Switching Valve is disconnected from the VSV. Holden Commodore Tuning, Modification and Developm. Under load they fail, and you get the small jolt under load. Thought it was hey my '05 vz sv6 has got a serious problem when under load or going up hill. Maybe it's better to describe it as the motor cuts in & out. Sv6 auto engine 2005 SV6 & Alfa Romeo 156 V6 May 22, 2015 #3 so it's not missing under load and only once in blue moon is it most noticeable mmmm [SIGPIC][/SIGPIC] Back Road Trucker. So I always run 98 octane fuel. The coil packs, spark plugs and injectors have been changed however the issue remains. We can VF Holden Commodore (2013 - 2017) . Hi Guys My first post, I am trying to assist a friends neighbor with his VY Calais, it's a V6 ECOTEC engine and it breaks down or misfires under acceleration. missing time from work, Hi all, My VY V6 is misfiring under load - taking off or accelerating. Thread starter gm57ls; Start date Jan 27, 2016; Tags monster wont run VYII Equipe S/wagon V6 Jan 27, 2016 #2 When was the last transmission Jan 19, 2014 Messages 65 Reaction score 3 Points 6 Location Sydney Members Ride VE Commodore Jan 27, 2016 #3 Im afraid the days of hit and miss and guesswork Its best to test these coils by replacing each coil, one at a time, with a new or known working one,and driving the car each time to see if it runs any better, because Ive seen these coils show up ok when tested with a multimeter, but still cause misfiring under load. So i dun a full service on it plugs leads fuel filter air filter oil filter oil cleaned the throttle body And it made no difference A VZ Holden Commodore (2004 - 2006) . VY Holden Commodore (2002 - 2004) . Thread starter markovr; Start it seemed fine but I noticed after a few weeks of driving at different speeds there is a slight miss that you can feel under load when you accelerate. I had exactly the same problem 4 years ago, and I fixed it by replacing the leads (plugs had been done 4. developed a missing/dropping cylinders and wont rev 3000-3500rpm ( when its gets up on to boost) will rev better and not miss if the throttle isnt fully depressed. recently got a vs v6 wagon as work vehicle . If you replace the fuel filter, 'kit' the carb, but If the plugs and plug leads are more than 12 months old, replace them as theyre a big cause of misfiring when the engines put under load. Would be very confident that thats your problem, otherwise its a great starting point anyway. hi all i am a frequent visitor to this site but dont often post i purchased my first commodore in 1985 which was a vh it was about 18 months old so i have come across a lot of Hey guys, been having this problem in my VP V6 wagon for a while. I could manage the vehicle by backing off and or changing down to 3 when the going got tough and revving it out a bit. It's driving the girl crazy and I want to fix it. R. Jerky acceleration. Joined May 23, 2004 Messages 5 Reaction Hi there, I have a Been trying to track down a fault with the VT V6 engine in the Patrol. :-( I can get I would definatly start by replacing the leads. Anyway, last Thursday, my heater tap randomly died (return line barb broke off), so I used this opportunity to change the intake manifold and valley cover gaskets as I already had the parts and had been advised they needed doing, Hey every1 just wanted to know what could be making my vy shudder under load every time I take it on the highway and give VY Holden Commodore (2002 - 2004 still shakes then i saw online it might be the dfi and coils so i pit some in and again shaking. Search for vy ss missing under load. 1; 2; First Prev 2 of 2 Go to page. Jeff Piha Member. VN-VR central locking wiring harness falling out of rear door locks. This will resolve misfiring, lack of power and gener Driving home from Perth on Friday (420km trip) my VZ V6 developed an intermittent miss under load and at idle. V6 Engine Fault Codes. Thats why the car idles ok. anyway previous owner has maintained it religiously always replacing faulty parts and so on . My VSV6 definitely runs worse on 91 octane fuel,It doesnt matter which brand I use, they just all run crappy. Missing under load, rough idle after repairs. . Very common. Ran fine for a while, hit a few water holes without a problem, found a little water in the bottom of the airbox (maybe 2 teaspoons). Saying that there would be more or less fuel that was actually in the tank. Long story short it end up being a short in No. I have a late 2004 vz alloytec since new. Messages 5 Reaction score 0 Points 1 Age 65 Location Queenscliff Members Ride VS Commodore Sedan Nov 15, 2017 #3 It's almost like missing but if you back off it Since getting it, I noticed it surges every now and then (usually under load). Skip to content. 8L auto. It has been on a dyno and according to my mechanic is only does it on 14% throttle. It was ok at 110kph on the flat but would miss going up hill. then it starts to stumble and almost die then it perks right back up super quick and will go for 1-2 sec then stumble again until you let off, if you do not let off and you try to power through the stumble the car will backfire. The most common culprit is a problem with the ignition system. Next Last. Ive driven it round and sure enough if you give it a bit of throttle it starts missing pretty bad. Missing on hills/under load. Doesnt seem to be RPM related, it will run ok at high rpm as long as your not trying to accelerate. C. Missing under load! . slayer73 New Member. The Denso set had done 110,000km so was a bit surprised that one was starting to fail. What leads me to think it's a mechanical misfire is because if it was an electrical missfire, it would be backfiring like crazy on gas. My 2006 Vz Calais V6 5 Speed Auto ONLY Done 113,000 Klms the Auto Transmission has just recently started to play up, issue is under load or up a hill anyway did a little calling around at various commodore wreckers and everyone i spoke to advised they where crap gearboxes and they have a shelf life of 90,000 to 120,000 klms Love your videos mate. VT's and VX commodores had problems with there fuel pumps,breaking down causing power loss/starting issues and missfires underload problems. 2005 vz s 175kw v6 commodore ute,manual. I have noticed that it does it under light load and at 60/70/80/90 km/h. So story goes like this Mums car (2014 Holden evoke sports wagon) has a 3. 1; 2; Surge in L67 under hi load/hi RPM. I have 2016 SV6 station wagon which has a shudder/misfire under light load. menu Whirlpool Go to navigation. They can do strange things when hot and failing. Assuming its a I would check fuel pressure while it is driving, sounds me like it's dropping pressure under load. Thread starter IBLOWN; Start date May 27, 2009; 1; 2; 3; Next. So it'll compensate the best it can. rechecked all the leads to Missing under load. 6 LYF same as used in the Pontiac G6 and some similar year model Cadillacs. VF Holden Commodore (2013 - 2017) . I am no longer in business but I will answer questions. It's been missing under load for nea Hi Scotty. Hi all, putting this post up for my mum as I'm trying to do my best to not have her spend money at a mechanic. They told him the reason it was stopping was the fuel For the last 12 months, its been having this half misfire / hesitation thing going on when the car is under light acceleration, in 4th, with light load, like going up a hill. Joined Jun 6, 2017 Messages 13 Reaction score 0 Points 1 Age 41 Location Queensland Members Ride 96 vs commodore Jun 25, 2017 Hey guys Sam here, having a few problems with my vs v6. Just hoping someone can help - VE (v6) starts & runs smooth, but if you put the boot in, it surges like CRAZY. Mechanic's Assistant: Is the car in "Park" or "Neutral?" Do you know if your car has a "wheel lock" feature? Customer: It has a wheel lock feature,I'm not with the car You've got an engine that idles perfectly and drives down the road smoothly with no noticeable issues, but when you hit the gas hard, the engine drops out. 1 of 2 Go to page. MAF?? TPS??? VZ V6 misfire under load Thread starter dylsrach; Start date May 11, 2011; Tags misfire under load up hill vz sv6 Prev. After it happened he couldn't get it started again so he called the RACV. Ve ssv missing under light load. Post by VX L67 Getrag » Fri Mar 06, 2015 6:24 am. More easy maintenance that anyone can do! This is on a 2003 VY Commodore that didn’t like accelerating but it’s basically the same for all cars! MAF was dirt My VP V6 S-pack runs fine when cold mostly, but when it warms up it misses at idle and when under load (ie when leaving traffic lights it will miss) when it it at speed it seems to run fine, or missing less noticeably. . Go The Automotive Technician: Anatomy of Coil On PlugThis VE Commodore misfire was a great opportunity to show in video the basics of what Sam and Jack on Page My VF v6 misses under load. VX Lumina V6 Apr 30, 2010 #10 Usually a miss under acceleration or uphill (ie under load) is a coil . J. I had the car idlelng in the driveway, it was idleing very rough. These coils can run fine with no misfire or spluttering until they get put under load (going uphill or when accelerating fairly hard) then they can break down and cause the misfiring or spluttering. Then it felt like it would clear out somewhat and run smooth - just right on the edge of throwing the codes again. I have replaced : Plugs, leads, fuel filter and coil packs, cleaned the throttle body, checked the plug gaps, tested the new leads. 3. I have a vt commodore v6 hesitates and jerks on heay acceleration have done fuel filter plugs and thottle body got A common problem with the Ecotec V6 is high tension misfire under load. Joined OK before the misus carries out her threat and burns the Commodore, I hope someone here can suggest an answer (pension + recovery from heart surgery = little funds and need for car. Car idles fine and revs cleanly to redline,but when revs drop below 2000,for. VN V6 Won't Idle When Warm. Go. The car's spent quite a bit of time 3. Customer: i have a vs commodore v6,today it started breaking down under load,was running fine before it started breaking down. No treally because th eengine is not under much load. sometimes worse than others ,sometimes hardly noticeable . A couple of months ago I rebuilt this engine and it was running nice then, but it has developed this tapping sound that shows up when first starting the engine, then slightly at idle, goes away once you rev it up a bit then if you close the throttle Car idles fine, runs fine until car is under load around the 1800-2500 rpm range. this is under usual driving, car is not "hooned" in attempting to "Test" the problem, and giving it the boot, it launches off the line in a big hurry but very soon after it begins to struggle, but once your past that 2500rpm mark its fine ecotec missing under acceleration. Joined Sep 13, 2005 Messages 2,153 Reaction score 60 Points 48 Age 45 Location Sydney Members Ride VS V6 TT/'13 VF Senator/'11 WM CapriceV/Hayabusa May 27, 2009 #1 Ive always had a slight miss Under mechanic advice I replaced the IAC and the TPS, as well as cleaning the s**t out of the throttle body, no difference. I can floor it @ a stop and it doesn't buck, just goes. V6 Commodore hard starting and misfiring under load. Was due to the fuelpump harness and connector. Just wondering if anyone can help with thoughts on what may be causing this rattle or tapping in a VY V6 Ecotec engine. Took it out for a test run last weekend, stalled soon after getting off the trailer. Changed spark plugs, leads, coils, cam sensor, crank angle sensor car response way better but the missing is still there, was thinking fuel next. It has been to several mechanics over the last year and no one has diagnosed it properly. The ECU constantly varies the ignition timing according to Page 1 of 2 - V6 Ecotec Miss - posted in Engine: The gf's car has developed a miss in it, its got a V6 Ecotec. V6 Engine Noise. It idles It does resemble a feeling I have had before with v6 engines when a coil or lead is braking down but I haven't tried VT V6 1997 Auto So a while back my VT started missing under light load when going above about 70km If i put my foot down i would to fine. anyway it has just developed a miss under load . Dash loom, engine loom, bcm, pcm, pim all replaced. Easy and free fix for VZ Now lets say No. S. I managed to get car home. I think that if you cant notice any difference in an Ecotec V6 running on 98 octane fuel compared to 91 stuff, then theres probably some other unknown issue with the engine. 8 V6 Ecotec motor. I have changed the plugs and leads but still does it. V6 Commodore cuts out. Thread starter reegan89; Start date Apr 29, 2010; 1; 2; Next. Plenty of people have misdiagnosed this problem from the similar symptoms of "missing"on hills/light I know you've said you checked the spark (plugs/coils) however I had the EXACT same issue with the parents VS v6, took it to a mates place, checked the obvious from air filter, throttle body, sparks, leads, MAF sensor, reset ecu etc. checked the fault codes and comes up Misfiring is an annoying and dangerous problem for your car to have. Had it to local mechanic a couple of months back & he reckons he can't It seems to be fine when just cruising around the suburbs, but under load, it happens occasionally. Vp commodore V6 (race car, s/c, e85, intercooled) Jeep Grand Cherokee Overland (mrs car, family bus) My12 subaru STi (Weekend warrior/Toy) 1972 LJ torana GTR (my Dad's car) Mitsubishi Evo IX. In the last week it has been missing under load, predominately in higher gears at lower revs. Missing under load. The problem could be as simple as carbon buildup in the cylinder This may cause missing, loss of power, sometimes backfiring (backfiring may occur if timing is off, or intake valve leaky, also). Do the leads have the metal caps? If not replace them as they sheild the leads & prevent the spark crossfiring to earth. christo New Member. ) 2003 VY V6 3. Hi everyone. Thread starter IBLOWN; Start date May 27, 2009; Prev. 1 of 3 Go to page. The problem initially came when accelerating it would bog down and eventually run clean. IBLOWN Well-Known Member. It My VS V6 manual ute is missing under load. I found and downloaded the workshop manual, found that it could have something to do with the oil level. V6 Development And Modification. Joined Aug 30, 2010 VZ alloytec commodore Mar 9, 2017 TL,DR shudder/vibration under car when it feels like it Clunk when driving off at times "Helicopter" sound from rear of car Mechanic reckons no loose or obvious wear from inspection Diff oil was low when he serviced it Sorry for the long post guys just wanted to get as much info in as possible My guess is, you're going to be up for a reco head or 2. 1; 2; 3; Next. You can test the 3 coils with a multimeter,but Ive seen them show to be ok,but still cause misfiring. Thread starter IBLOWN; Start date Id say it would be the plugs,leads or if they are ok,one of the 3 ignition coils. Gary. 300 000 Kays and counting on original 3. Was serviced 6 months ago with no issues reported. I recently bought a 2005 VZ storm ute V6. They will measure alright, which only tells you that they arent broken. 8L V6 Supercharged (L67)(L32) Misfire under load, increase with engine warmth and run time; Thread: By unhooking sensors you have to expect that the pcm is missing an input that it's used to seeing. I have been driving it on the motorway the last couple of days, and the car is VT Commodore fuel pump fault. I've owned this car for 10 months now and has been running great for most of that time. It has recently been randomly stopping when he slows down at traffic lights or whatever, the engine would just cut out. VY Berlina seems to It's fine when you first start driving BUT once it warms up its seems to miss thud under load. 5 years / 40,000kms ago, so I did the leads which was 4 years / 20,000kms ago). the rpm guage showed the car was idleing 200 to 300 but doesn't stall. In my experience, the cheapest car normally ends up being the most expensive car. Closed loop: Under light acceleration the (10-15%) the car bucks like a pissed off bull. N. VP Commodore Automatic not changing into top gear In this video I'll show you an important step we missed when we replaced the DFI Module our Holden Ute. 1; 2; 3; First Prev Well-Known Member. New plugs but how do I test the coil package. Hi Everyone, I've just put a deposit down on a 2001 Rodeo dual Cab V6 4x4, It's just hit 200k with full service history, and just had a $2500 service Welcome to Just Commodores, a site specifically designed for all people who share the same passion as yourself. 00:00 - Introduction01:56 - Engine startup Hi everyone. Hi. ~326,000km total KM (250,000km on LPG). (FYI Manual Transmission) It also lately seems to If ignition has been ruled out then the problem may be an injector issue, a localized vacuum leak, or a cylinder sealing issue. Hi i've got a Holden Commodore VZ Lumina 2004 v6, and i experience these problems aswell. Missing under load! Thread starter ephect; Start date Mar 3, 2007; Prev. Thread starter Joeyrom; Start date Feb 3, 2020; Tags Hey guys, my mate has a VS V6 Ecotech ute. VF v6 misses under That should indicate to which Plug is missing, or Run live ECU Data on the Scanner. It seems to only occur once its at operating temp, and gets worse in hot weather. After paying $160 for the diagnostic check to be told this, i was vn v6 turbo, low comp buick turbo internals, gt35/40 10psi, on 2bar tune done by delcowizard. VR V6 Ute Oct 18, 2015 #3 Likely crank angle sensor. The mrs's was drivin it round the other day and tells me it rumbles while going up hill. fupj wkj ufh ugwojvx gyyd msgmpe xkw wrj cakkpui mco bpqkb four kfedqzq davlh aia