I spent too much on my 2011 DTS. Mostly revered for its applications in many Cadillacs, the Northstar engine is considered the most complex GM engine ever. Yes and no. They were all Buick Lucernes, Cadillac DTSs, and CadillacSTSs which had Northstar engines. Several engines like the gm lfx, ls7, and ls3 can be used to replace a northstar engine with proper modification and installation. It goes without saying that oil levels can drop in this engine. The Shelby Series 1 made from 1999-2005 featured the L47 under its hood, with a decent output of 320 hp and 290 lb-ft. We are straying even further from the familiar V8 Northstar engine formula. However, there have been some people who've driven it past 200,000 and 300,000 miles. The Northstar engines employed four valves per cylinder. Although, those same owners say that it would need a bit of rebuilding and reconditioning once it passes 200,000 miles to keep it going. The LB7 models from 2001 to 2007 had a problem with fuel starvation and injectors. These are one-time bolts meaning they need to be replaced every time they are removed. Hes an experienced, hands-on automotive enthusiast who delivers in-depth, well-researched content. However,, Read More The 4 Most Common GM 2.4L Ecotec Engine ProblemsContinue, Outputting between 305 and 350 horsepower in American spec, it is a stretch to call the Chevy 5.7L LS1 V8 a slouch. Meanwhile, others say that it wasnt until minor updates came along in 2002 and 2004 that the Northstars infamous head gasket problems were solved for good. Links Below: A Cadillac Northstar engine with a slow coolant leak & overheating. GM Northstar 4.6 V8 Engine anything new on this? I should have read these reviews before I bought mine! Car Jerks When Accelerating: Reasons Explained and Fixes, How Much Are Air Filters For Cars: Engine & Cabin Air Filter Cost. In some cases, needing to work on the engine would cost owners more than what the rest of the car was worth. Here are three steps you can take to increase your Northstar V8's power and performance. This helped the engine to adapt to the fuel demand, depending on the environment, throttle input, and a myriad of other factors. The Northstar engines were quite complicated for their time. In 2004, the Shortstar was phased out. LD8 models have VINs that begin with Y. This increases the oil consumption. However, this tech-focused approach is also what made the Northstar a bad engine in some ways. The 32-valve design of the Northstar's engine head gives it a serious advantage when it comes to upper rpm breathing as compared to a more traditional 16-valve pushrod motor. It was GM's first production V-8 with overhead camshafts. Well, I dont think that I will be purchasing the 2005 SRX that I was contemplating. This was to create an offensive against the upcoming Japanese and European luxury cars. As well as high quality car reviews we also specialise in troubleshooting car problems. buy a fleetwood that has an LT1 already in it (they are identical to the impala SS) and are already rwd. This issue will need the owner to replace the seals and gaskets which consumes a lot of time. Usually they start small and then expand and worsen over time. Northstar engine series - Wikipedia Water pumps tend to be a point of failure on quite a few modern engines, likely due to the fact that they are under high strain at all times. As the Northstar engine was used in a flurry of GM cars, it will be a blanket statement if we say that it was an unreliable motor. Instead, they opted to include every piece of new innovation they can. But just pray that issues dont appear, as fixes will be very expensive. headbolts are 11mm/1.5 can they be replaced with 12mm/1.5 during gasket replacement block threads were damaged. For example, the Northstar engine was notorious for head gasket failures, among other issues such as oil leaks, heavy oil consumption, and carbon build-up. The only sensible repair job is to replace the head gasket and the dreaded TTY bolts. Depending on the model, it made between 305-350 horsepower and 335-365, Read More LS1 Throttle Body Upgrade GuideContinue, At this point, the Chevy LS has become one of the most notorious engines in nearly every motorsport arena. Also a 4.2 V8, the LH2 is a modified Northstar meant for rear-wheel and all-wheel drive vehicles. You folks are the bomb like the young kids say. If youre still curious to learn more about the Northstar engine, our FAQs here might help. What happens is this blow-by then gets recirculated into the combustion chamber through the PCV valve. As an Amazon Associate, I earn from qualifying purchases. A 4.6l v8 dohc engine from general motors can replace a northstar engine. Youre a lot safer to spring up for something past 2005, although the later engines from 2006 to 2009 also had some (albeit, not as serious) issues. It had its own fair share of problems, the most acute of which is the head gasket issue. We believe in the pursuit of performance and are here to help you get the most of your car and engine. 6l v8 dohc engine from general motors. The engines head used torque-to-yield bolts, also known as TTY bolts. Save my name, email, and website in this browser for the next time I comment. The northstar engine is an iconic powertrain found in various cadillac models. When it comes to replacing them, viable alternatives exist. hmm im really interested in this too. But this job created yet another carbon-related issue. Generally it will usually just cause a small leak from the back of the block or crankshaft. With a deep understanding of car tools, equipment, engines, and troubleshooting techniques, Dustin Babich shares invaluable insights, practical tips, and effective solutions to empower readers in overcoming car-related challenges. One of the most common issues is overheating, which can cause significant damage to the engine block. Raptor Liner vs. LineX: Detailed Bed Liner Comparison, Which Nissan Frontier Years to Avoid and Why? In any engine, a failure in the timing belt will cause the engine to stop. General Motors manufactured these from 1993 until 2011. When the head bolts pull out, coolant could leak out. The Northstar engines were used in various Cadillac models, including the Eldorado, DeVille, Seville, and STS, among others. After a long run spanning almost two decades, the Northstar engine came to its final leg in 2011. Northstar Oil Leak Information - RB Auto Service With both camshafts working in tandem, these engines could rev even higher, producing more power. REMANUFACTURED 93-08 CADILLAC 4.6 NORTHSTAR ENGINES | What's New The gaskets are difficult to replace. The Northstar V8 engine family is General Motor's top-of-the-line luxury power plant. if they can be replaced with 12 mm are they available. Replace a 270 HP northstar engine with a standard cadillac motor? (Explained), Replaced Crankshaft Position Sensor But Still Get Code (Fix), Which Cadillac CTS Years to Avoid and Why? "text": "Cadillac's Northstar V8 was a great engine in some ways, but it's also a terrible one in other regards. The supercharged versions were also de-bored, with the total capacity reduced to 4.4-liters. It was not a knee-jerk reaction though. You can replace the Northstar engine ,but everything from engine mounting,transmission,engine wiring harness,computer ,& all sensors.It will be very expensive with nothing but trouble,everything will have to be re engineered & very expensive. The L37 was transversely mounted for a front-wheel-drive layout. When the bolts are withdrawn, they must be replaced. It includes a supercharger and variable valve timing and produced up to 469hp and 439lb-ft. of torque. These tips will help you make the best decision when selecting an engine replacement. Northstar engines did away with the old Over Head Valve configuration. You should consider avoiding the following models from the Northstar engine lineup: Oil leaking was a major problem with the initial Northstar V-8 from 1994 to 2001. The chevy 3.5 v6 engine commonly experiences issues with the head gasket and timing chain. Cadillac 4.6 Liter - Northstar Engine Starting at: $ 2,995.00 Accurate Engines are engine producers, not resellers. The Cadillac Northstar engines were developed and manufactured by General Motors (GM). Additionally, well do our best to specify which variants are most prone to the common problems we mention below. Unfortunately the only options here are to replace the cover or gasket. Keeping the Northstar reliable requires proactive and tentative maintenance. Glow plug overheating is one of the most common issues with Northstar LC3 engines. But just pray that issues don't appear, as fixes will be very expensive." I hope and pray this car endures for a long time. The carbon buildup in the piston rings was solved by GM by 2000. Due to its transverse design and engineering it is a rather expensive engine to repair when problems do arise. The Allants engine was the genesis of the long-range of engines to be used by Cadillac, Oldsmobile, and Buick, including a cameo in a Shelby. E/K Body Engine Mounts. However, all that added complexity also meant that there were more points of failure should things go wrong. During its life of almost two decades, the Northstar engine range received a bunch of updates. Whichever it is that needs replacing, its not easy. That may not help you in this scenario. But it is not that easy to say. For more power, gasoline engines needed to rev higher. 3 Hi-Performance Tips For Building The Cadillac Northstar V8, GM's 32 This was also accompanied by a healthy reserve of torque, at 290 lb-ft. Hi, my name isXXXXX it can be done, but it would very expensive, alot more then 5000, the engine and trans would need to be replaced, but also the entire wiring harness for the vehicle, including the wiring and the computer, thius would be very labor intensive, probably in the 10k range, so it would not make economical sense to do this, the north star engine is not that bad a motor, i have . Those same advancements also made the Northstar a complex engine and seemingly minor issues can be a headache and expensive to repair. Something that certain Cadillac Northstar owners have contemplated over the years is a complete engine swap. This could have been easily solved by swapping the bolts out for stronger ones. As the first production GM V8 with overhead cams, the engine was technologically ahead of its time for production V8 engines. The Northstar engine is a technologically advanced engine produced by GM from 1993 until 2011. SOURCE: Replace tail lights. Not sure if this helps any but this is a link to a guy who swapped out a 6cyl in an impala for the LS4. I enjoy helping our readers learn about cars and avoid mistakes when making repairs. Additionally, it added variable valve timing which increased horsepower to 320hp. What year Northstar engines to avoid? Back when it was launched, Northstar engines were not like the hardy, iron-block engines that everybody was familiar with. Jerry Newton is online now Continue Share this conversation Related Cadillac Questions The LC3 reduced the engine size for improved strength and to minimize head gasket leaks. The later Northstar engines were supercharged to squeeze out more power and torque, from a lower engine size. There is no definitive answer to this question as it depends on the make and model of the vehicle in question. The introductory model of the Northstar engine was the worst from GM.
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