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The 3. Upon its release, it applied the most advanced automotive engine technology available, from state-of-the-art casting processes and full four-cam phasing to ultra-fast data processing and torque-based engine management. This aluminum-intensive construction means less weight and greater efficiency than conventional cast-iron engines — and less weight translates to improved vehicle fuel economy.

The sand-mold-cast block features strong cast-in iron bore liners, six-bolt main caps, and inter-bay breather vents. Rotating Assembly with Oil-Spray Cooled Pistons : the crankshaft is manufactured from forged steel and the connecting rods are a sinter forging, as used on other 3.

The pistons are made of lightweight cast aluminum and feature a friction-reducing polymer coating on the skirts, as well as fully floating wrist pins, which also help reduce friction. Less weight in the pistons means less reciprocating mass in the engine, which in turn means less inertia and greater operating efficiency.

The V6 VVT engine family was developed with pressure-actuated oil squirters in all applications. The jets reduce piston temperature, which in turn allows the engine to produce more power without reducing long-term durability. Direct Injection : direct injection moves the point where fuel feeds into an engine closer to the point where it ignites, enabling greater combustion efficiency.

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It fosters a more complete burn of the fuel in the air-fuel mixture, and it operates at a lower temperature than conventional port injection. That allows the mixture to be leaner less fuel and more airso less fuel is required to produce the equivalent horsepower of a conventional, port injection fuel system. Direct injection also delivers reduced emissions, particularly cold-start emissions, which are cut by about 25 percent.


High-Pressure Engine-Driven Fuel Pump : an engine-driven high-pressure pump supplies fuel to the injectors to overcome the higher pressures inside the combustion chamber, as well as supply the multiple injection points of the direct injection nozzles.

This variable-pressure high-pressure pump feeds a high-strength stainless steel fuel rail attached to the injectors. The engine incorporates a timing chain with an inverted tooth design. These smaller links engage at a lower impact speed, which decreases the noise generated. In conjunction with the smaller pitch chain, the number of teeth on the sprockets are increased, which increases the meshing frequency and further reduces noise and vibration.

It allows linear delivery of torque, with near-peak levels over a broad rpm range, and high specific output horsepower per liter of displacement without sacrificing overall engine response, or driveability. Nm Buick Enclave with dual exhaust lb. GM Authority Newsletter Subscribe for free to receive our daily newsletter in your inbox. First Name.

Buick Enclave

Last Name.The Buick Enclave is a midsize three-row SUV that's positioned somewhere between mainstream and entry-level luxury brands. You do get a quiet and smooth ride, which you expect from Buick. The Enclave's interior is also quite large and can hold plenty of cargo, even with its third-row seat in use. Read our Expert Rating to learn more of our take on the Enclave. All models receive a 3. The base Preferred trim is only available with front-wheel drive, while all-wheel drive is available on other trims.

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The base Preferred trim comes well appointed with feature highlights that include: Keyless entry and ignition Hands-free liftgate Rear parking sensors alert you to obstacles that may not be visible behind the vehicle when parking Heated front seats Power-adjustable front seats 8-inch touchscreen infotainment system Rearview camera Apple CarPlay and Android Auto smartphone integration Wi-Fi hotspot Satellite radio The Essence adds only a handful features that include:.

The Premium trim adds a healthy number of convenience and safety features that include:. Some features are available on supporting trims as options. All but the Preferred trim are eligible for the optional rear entertainment center. Be the first to write a review. Both may have plenty of passenger space, provide a smooth ride and come with abundant tech features, but the Telluride outperforms the Buick in these areas and more. A top-trim Telluride also costs thousands less than even the Enclave's midtier trim and has a very generous warranty.

Read Edmunds' long-term road test of the Telluride. The Hyundai Palisade is closely related to the Kia Telluride and shares many of its best attributes. As a result, it handily outpaces the Buick Enclave.

The Hyundai is more expensive than the Kia, but the Palisade's top trim is still just a bit more affordable than the Enclave Premium. The Honda Pilot is one of the older vehicles in the class it was last redesigned in yet it remains one of the best three-row midsize SUVs. It's roomy and comfortable, like the Enclave, but it earns more points for its versatile interior and clever storage solutions. Read Edmunds' long-term road test of the Pilot. Available styles include Preferred 4dr SUV 3.

Consumer ratings and reviews are also available for the Buick Enclave and all its trim types. Edmunds consumer reviews allow users to sift through aggregated consumer reviews to understand what other drivers are saying about any vehicle in our database. Detailed rating breakdowns including performance, comfort, value, interior, exterior design, build quality, and reliability are available as well to provide shoppers with a comprehensive understanding of why customers like the Enclave.

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Edmunds experts have compiled a robust series of ratings and reviews for the Buick Enclave and all model years in our database. Our rich content includes expert reviews and recommendations for the Enclave featuring deep dives into trim levels and features, performance, mpg, safety, interior, and driving. Edmunds also offers expert ratings, road test and performance data, long-term road tests, first-drive reviews, video reviews and more. This review was written by a member of Edmunds' editorial team of expert car reviewers.

Our team drives every car you can buy. We put the vehicles through rigorous testing, evaluating how they drive and comparing them in detail to their competitors. We're also regular people like you, so we pay attention to all the different ways people use their cars every day.A quick check of the web turns up that many who own this engine are experiencing troubles all the way up to the engine fragging.

So far, almost a month later, GM has not responded to either one of my letters. Intentionally vague is normal. Odds are that this modification will not affect maximum RPMS, horsepower, or affect engine performance in any way and will simply remind the car owner to have the oil changed sooner than what was previously stated by the OLM.

The odds are that the new and improved update may still not be good enough for the real world and the oil may need to be changed more often than the new update will suggest. What should be done is to forget that OLM even exists and base it on the odometer and time.

buick enclave 3 6 engine diagram hd quality gear

I read several posts on a CTS forum last week but saw no examples mentioned of engine failures. It seems that the cam position sensor was overly sensitive and was tripping the check engine light too soon and cam chains were being needlessly replaced. The cam position sensor will be recalibrated to trip the CEL later. The cam chain elongation figure that I recall seeing was very small, about 2 mm. Oil change frequency will be increased to reduce cam chain wear.

Our 3. I suspect that if you do not drive your engine frequently to extremes, you would never see a problem without the recall. This information is early and therefore subject to change.

Here is a little more info. Just for comparison,lets say you bought a car that the manufacture claimed produced hp. You were somehow able to duplicate exactly the test method and conditions that the manufacture used this is possible but not likely and you ended up 25hp short, could you recover your loss?

And you may actually be better off changing the oil every 5, miles or so, as most everyone on here probably does? This bulletin was first mentioned here in the Chevy Traverse thread if I remember correctly. The part that puzzles me is what the OLM is going to start recommending after any modification.

If the OLM was spitting out 12k, 15k mile oil change intervals pre-modification does it mean that it will cough up 10k mile intervals post-mod?It has a refined ride and an energetic powertrain, and it offers a rich array of tech features and a large cargo hold. That said, the Enclave struggles to match the sportiness and interior quality of some rivals.

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However, there are lots of appealing classmates. For instance, the Mazda CX-9 offers more dynamic handling than the Enclave, and it has a rich cabin. The Enclave belongs to a generation that launched for the model year. The model got a renamed base trim, but there were no major changes. ForBuick only made a few minor tweaks.

Perhaps the most significant is a new Sport Touring package available in the Essence trim that adds larger alloy wheels and restyled exterior elements. You could save money by shopping for a nearly identical older model, which likely costs less. Be sure to read our, and Enclave reviews to help make your decision. Also, check out our Used Car Deals page to learn about savings and discounts on used vehicles. Our goal is to provide you with the information you need to make car shopping a breeze.

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You'll find everything you need to know about the Buick Enclave in our comprehensive review. This Buick Enclave review incorporates applicable research for all vehicles in this generation, which includes the through model years.

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To ensure our impartiality, a third party handles our advertising, and we don't accept expensive gifts from automakers. Both vehicles feature the same powertrain, as well as similar cargo-carrying capacities and passenger space. If you can forgo the extra luxury, the Traverse is the more economical bet. Compared to the Enclave, the Acadia falls short in several areas.

It has less cargo space it's a smaller vehicle overalland you're probably better off skipping its standard four-cylinder engine in favor of the optional V6. The Acadia also has fewer upscale cabin materials than the Enclave. Unless the smaller size of the Acadia is appealing to you, the Enclave is a better choice. The Buick Enclave seats seven people in three rows.

buick enclave 3 6 engine diagram hd quality gear

Heated and power-adjustable front seats are standard, as is cloth upholstery. The first two rows are spacious and comfortable, and the second row slides forward to allow easy entry to the back. Two adults will be OK in the third row for short trips, but on longer journeys, that space is best left for kids.

There are also tether anchors for each third-row seat. Despite some nice cabin materials, a few cheap plastics keep this Buick from looking or feeling as upscale as some rivals. This vehicle has It has 58 cubic feet behind the second row and a maximum cargo capacity of These figures are above average for the midsize SUV class.

The base Enclave Preferred comes with a wide array of tech features. Navigation, wireless device charging, a premium speaker Bose sound system, an 8-inch driver display, and a dual-pane moonroof are available.

There are plenty of physical controls for commonly used functions, and the touch screen responds quickly to inputs.However, just like any other vehicle on the market, this versatile SUV does have its weak points. Based on reports from consumers, here are the most common problems with the Enclave that you should be aware of.

Windows down, music up on the endless road. We went paddle boarding in the city, rode horses in the countryside, danced on rooftops, wore cowgirl boots in Luckenbach and laughed until we cried. The top complaint among Buick Enclave owners is transmission problems. According to Car Complaints, Enclave owners report this issue around an average of 91, miles. After that year, it appears that Buick made some changes because it became less of an issue in and newer models, though it is still reported as an occasional problem.

Some transmission problems can be fixed with a simple repair, but other issues will need to have the whole transmission replaced, which can be rather expensive. Another common problem with the Enclave is a stretched timing chain. All timing chains will eventually wear and need replacing, but this normally occurs betweenandmiles. With the Enclave, consumers have reported a stretched timing chain as early as 40, miles. When the timing becomes thrown off because of a stretched timing chain, a check engine light should appear on the dash once the sensors realize the problem.

Other signs to watch out for include a rattling or vibration sound when the engine is running, the engine misfiring, or metal shavings found in the oil. Although it may just need a new chain slipped into place, the repair cost can be rather expensive because of the serious labor it requires to reach the chain, which could include taking out the engine or transmission. If a stretched timing chain caused further damage to the engine, this could substantially increase the repair cost as well.

Bad news is time flies. BuickEnclave Avenir. Intermittent power steering failure is another common problem with the Buick Enclave. Luckily, this one is usually easy to notice and diagnose because the steering wheel will become hard to turn while driving.

Earlier models of the Enclave seem to have the most power steering problems, with the through models having the highest number of reported complaints. The most common and serious problems with the Enclave seem to occur mostly with the older models.Worried about potential repair costs?

An extended warranty can provide peace of mind. See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs.

To see how frequently Buick Enclave problems occur, check out our car reliability stats. All years.

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Buick Enclave repairs by problem area. Buick Enclave engine repair cost distribution. See most expensive repairs Worried about potential repair costs? Chart based on repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

Taken to dealer, found that O2 sensor was faulty. Found to be exhaust valve had gone bad. Replaced under warranty. They had to reseal the front engine cover then refill oil and retest to verify. I shut off the engine, then restarted it. It seemed to smooth out, but it threw a CEL. Went to the dealer the following day, and the codes showed a lean fuel trim condition in both cylinder banks PO and PO The fix was to replace the solenoid for the evaporative canister purge valve.

Warranty covered it, and all is good. This time it was fixed. We switch brands and this seems to have gone away. However dealer said this may be burn off on the catalytic converter. We'll stay on it. This caused all the lights to go on and the car almost to shut down.The Enclave was previewed at the North American International Auto Show[1] officially as a concept carmaking it the first Lambda vehicle to be displayed.

The Enclave has seating for seven passengers, with an optional second row bench seat instead of the standard two captain chairs which increases the seating to eight. It comes standard with front-wheel drive with an option of all-wheel drive. The Enclave shares powertrains with its Lambda siblings. The Lambda vehicles are built at GM 's new Delta Township Assembly plant near Lansing, Michiganand production of the Enclave commenced on April 11,[4] with the first vehicles reaching certain dealers by the end of the month.

The Enclave is often praised for its subsequently vast cargo space while maintaining the relatively dynamic nature of unibody construction over the conventional body-on-frame. It is also praised for being one of the quietest vehicles available for sale in the United States, as well as for the quality of the interior. In its first year of production, the Enclave was often criticized for its 6-speed transmission, which was "hesitant to downshift.

Buick Enclave repairs by problem area

Buick's VentiPorts have reappeared at the Enclave's introduction, a styling feature unique to Buick dating back to Initial sales of the Enclave have been very strong, with demand far exceeding production capacity, forcing GM to add a third shift to the Delta Township plant. With the arrival of the Buick Envision which is slotted between the Enclave and Buick Encore to North America in for the model yearthe Enclave will be bigger after Envision's debut, and the model year Enclave will be the last under the first generation platform.

Among safety features are seven standard airbags, including an industry-first front center airbag, and available blind-spot monitoring.

Sales in the United States and Canada began in during the model year.

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The Buick brand has been relaunched in Mexico for the model year, bringing the Enclave to that market. The second generation Enclave went on sale in the Fall of as a model.

Powered by a 3. The second generation Enclave comes in standard Front-drive or available with Intelligent AWD with an active twin-clutch rear differential, which complements its first switchable all-wheel-drive system. There are three level trims, including a new top of the line premium Avenir sub-brand. In EarlyGeneral Motors initially had plans of launching a face-lifted version of the Buick Enclave in mid to late as a model year vehicle.

The face-lift will adopt many design elements and features along with new LED headlights and taillights already seen on the Chinese version of the Buick Enclave. On October 22,Buick unveiled the Chinese-market Enclave. It is a "mid-size plus" version of the Enclave which utilizes GM's C1 short wheelbase platform. It went on sale in that region in late While it has the similar features as the full-size North American Enclave, the Chinese version is shorter with a design different from its counterpart; there are no plans to make it available in North America.

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