Tag: Engine

By on April 4, 2017

C1937 Cord 812 (Jane Nealing/Flickr)

DAG writes:

Why don’t automakers design front-wheel-drive cars with the transaxle in front of the engine? This moves the front wheels forward and improves weight distribution; offers better potential for aerodynamics and leaves space under the hood for pedestrian protection. With a turbo four-cylinder, the engine could have clearance from the firewall. Also, the engine and transaxle could be mounted on a pivoting subframe, hinged at the front, to drop down at the back for major maintenance; disconnect steering and exhaust to drop cradle.

The engine would sit in the space where rack and pinion generally resides; steering gear design would be a challenge for direct mechanical actuation. Perhaps traction would be reduced. Would crashworthiness also be affected? (Read More…)

By on March 21, 2017

Picoscope NVH diagnosis tool, Image: Twitter

Doug writes:

I have a 2007 Mercedes-Benz S550. I accidentally bought it in 2014 off eBay (long story) for about trade-in ($13,000), with 150,000 miles on the odomater. In a twist of good luck, it turned out to be a one owner car and using CarFax I was able to see and verify that it had been maintained by the selling dealer right up to a few weeks before its eBay appearance. A call to the dealer confirmed the complete service history. Even the brake pads and rotors were new, and it had a newish and very expensive set of Michelins. Almost three years later, it has been very reliable for my teen daughter and has 180,000 miles. It had a few quirks I have fixed myself (clogged charcoal canister, minor trunk leak caused by a missing rubber plug, sticking power driver seat) and only one real repair (dead stereo amp rebuilt by Becker).

Now that my daughter is off at college and content with a ZipCar, I am driving it and intend to keep doing so. I have noticed a vibration in the center console area of all places, while driving around town. You feel it through your arm resting on the console lid. It’s a deep vibration, if that makes sense — coming from under the car.

You don’t feel it in the seat, nor do you feel it in the steering wheel. You do not feel it at a standstill, just at 20-30 mph. It goes away at higher speeds, and the car is rock solid and smooth as glass at 75 mph. I am stumped as to the cause, and with the age of the car, I don’t want to set a dealership or even an indy shop loose on it without more of an idea of the cause. I was thinking maybe a motor mount, but it seems like I would feel that all the time, and especially at idle, which I don’t. I was wondering about maybe some kind of driveshaft or transmission mount or connection point, but it seems like a fault that would get worse with increasing speed instead of going away. Do you have any ideas?

(Read More…)

By on November 22, 2016

2016 Ford Mustang V6 Convertible interior, Image: © 2016 Bark M./The Truth About Cars

Hey, let’s give this a try again.

Do you hear that sound? It’s the collective silence of every cheerleader in America not giving a single care to the possible death of a V6-powered Mustang. Even though the automatic, drop-top, V6 Mustang is colloquially called the Cheerleader Edition, do you think Sally McJumpyskirt really cares if four or six or eight pistons are doing battle with physics under the hood? Nope.

But we’re different. We care that the V6 offers a more aurally pleasing soundtrack than the cookie-cutter 2.3-liter EcoBoost four-cylinder model. We care that, in the real world, the V6 will likely return fuel economy that’s nearly as good as its smaller, boosted cousin. We care that the tried-and-true 3.7-liter V6 is just that — tried and true.

Yet, I can’t help but not care about its death.

(Read More…)

By on May 13, 2016

2016 Volkswagen Beetle Dune Low Angle Front 3/4, Image: © 2016 Kamil Kaluski/The Truth About Cars

When a concept car is introduced at a major auto show, it provides a glimpse into the future of an automaker’s next model. Some concepts are really cool. Some are not. Most never make it into production. A few do. The Baja Bug-inspired VW New Beetle Dune Concept was unveiled at the 2000 Los Angeles Auto Show. It was an off-road-ready New Beetle powered by a 2.3-liter VR5 that sent its power to all four wheels via a six-speed manual transmission.

More than a decade later, a similar, but water-downed, Beetle Dune Concept was shown at the 2014 North American International Auto Show. That car was raised two inches, had a 210 horsepower engine, a cool ski rack, but was front wheel drive. That concept car finally made it into production this year with relatively minor changes — but should it have?

(Read More…)

By on March 24, 2016

2000-2002 Toyota Tundra, Image: Toyota Motor Sales, U.S.A.

TTAC Commentator ScarecrowRepair writes:

I live on a private road that’s 3/4-mile paved and 1/2-mile dirt. Myself and a couple of others on this road park our cars at a wide spot in the paved section and use a high-stepping 4×4 pickup for the short ride between the parking spot and our homes, primarily because the steep dirt road alternates between an inch of dust in the summer and a couple of feet of snow in the winter, with slippery clay mud in between.

(Read More…)

By on March 1, 2016

1998 Toyota Sienna XLE Front 3/4, Image: Toyota

TTAC Commentator MatadorX writes:

Sajeev,

I am hoping you and your readership can give me some guidance as to how far to take a vehicle overhaul: mild insanity or full on broke?

The vehicle in question is a 1998 Toyota Sienna XLE.

(Read More…)

By on January 26, 2016

vw tsi tdi

Perhaps you heard. Volkswagen ran into a little trouble with their previously acclaimed TDI diesel engines.

No matter.

Volkswagen’s recently introduced 1.8-liter turbocharged four-cylinder gas-fired engine was already beginning to weaken the case for the optional 2-liter diesel. But now a new 1.4-liter turbo – yes, a wee little 1393 cc four pot – generates the same amount of torque as the 1.8T, has only 20 fewer ponies, revs with sweet abandon, and produces real-world fuel economy figures that challenge the TDI.

The pick of the Jetta range? You better believe it. More pertinently, there’s no better base engine in an affordable small car in 2016. Say goodbye to the TDI if you must, even temporarily, then welcome this TSI with wide open arms. (Read More…)

By on December 22, 2015

2011 Chevrolet Camaro LT with an RS Appearance Package

Casey writes:

Hello Sajeev,

I have another question for you. My wife has wanted a Camaro and lately I have been thinking about surprising her with one for her birthday or maybe Christmas, so I have been searching the listings for a nice used example.

First thing I noticed is these cars sure seem to hold their value!

I found a Craigslist ad for a very nice looking, well optioned, 2011 Chevrolet Camaro 2LT with the RS package. “ALL scheduled service and maintenance has been performed by Chevrolet certified technicians,” the ad says and the price seems reasonable.

Then I see the kicker: the mileage is high for the year at 117,800. I know that a documented maintenance history is more important than mileage, so I wonder what impact higher mileage would have on a car like this? What problems could I run into sooner by buying a well maintained, high-mileage car?

(Read More…)

By on October 27, 2015

Hyundai 1.6-liter engine

Hyundai announced Tuesday its 1.6-liter hybrid engine that will likely appear in the company’s Prius fighter when that car goes on sale around 2017. The company also unveiled a new 8-speed automatic transmission for front-wheel drive cars.

The new Kappa 1.6-liter GDI engine runs on an Atkinson cycle and uses cooled exhaust gas recirculation to increase fuel efficiency.

Hyundai said the engine would produce 104 horsepower and 108 pounds-feet of torque and would be used in hybrid applications.

(Read More…)

By on October 13, 2015

Stefan writes:

Dear Sajeev,

I am the last person who would want to be even peripherally involved in you losing your job or impeding that great Lincoln rebuild. I am a loyal reader of TTAC and “slavishly” read your column.

My Subie is just touching 120,000 miles. It has been a really great, reliable ride and I fortunately have a good dealer and private mechanic for the routine issues that pop up.

I want to keep the car as long as possible. I do oil changes and the roughly 60,000 mile recommended scheduled service on time. The engine sounds good, has good (for a Subie) pick-up, averages 20 to 23 miles per gallon, and still has a tight body. I anticipate the need for new shocks at some point soon and a muffler/cat replacement. (Read More…)

By on September 4, 2015

2014-mazda-6-skyactiv-d-22-liter-inline-4-diesel-engine-photo-478625-s-1280x782

As the price of oil and gas sinks to below $50/barrell, so does Russia’s economy. The former Soviet state, highly dependant on oil and gas revenues for growth, is expected to experience economic shrinkage between 3.4 and 6 percent this year. That isn’t good if you’re doing business in rubles and some automakers are beating a hasty retreat.

Not Mazda.

Like Ford and Hyundai-Kia, Mazda is sticking it out in Russia with their manufacturing partner Sollers (which is also the manufacturing partner of Ford since 2011). The two have just signed a Memorandum of Understanding to begin assessing a new engine plant in the country.

(Read More…)

By on August 22, 2015

2015-Chevrolet-CorvetteZ06-003-sm

Last time we heard from Fox’s Gary Gastelu, he was reporting that his test Z06 gave up during his track run in a spectacular shower of oil and grease and bits and fun.

Now, he says Chevrolet has told him what went wrong and it’s a familiar story:

After bringing it back to Chevrolet HQ for inspection, the engineers determined that the likely cause was a piston connecting rod bearing that was damaged by debris in the oil that was left behind after tapping the threads for the oil filter. Once a piece gets jammed in there, it starts creating more debris, which keeps making things worse until finally … kablooey. In this case, it took out a few more pistons with it.

(Read More…)

By on July 20, 2015

2016 Buick Encore

General Motors announced Monday a new trim for the 2016 Buick Encore that will use a new 1.4-liter turbocharged four, which will be the first application of a new global-engine platform. The car will go on sale this fall.

According to GM, the new mill produces 153 horsepower and 177 pound-feet of torque — an 11 percent gain in power and 20 percent gain in twist over the 1.4-liter turbocharged engine currently doing duty in the cute ute. The two engines share only similar displacements. The current mill is rated at 138 hp and 148 lb-ft of torque.

There’s also a new Encore trim called Encore Sport Touring and it has a spoiler and 18-inch wheels and body-colored door handles and back to the engine.

(Read More…)

By on June 24, 2015

This is what you’ve been waiting for, folks – the sound of the brand new Alfa Romeo Giulia’s 510 hp six-cylinder roar.

[h/t Jalopnik]

By on May 21, 2015

2016 Nissan Maxima Front Three-Quarter

Earlier this week, I was able to drive the 2016 Nissan Maxima around the great state of Tennessee and enjoy some of the twistiest roads outside of the Tail of the Dragon. While I can’t share driving impressions just yet, there is one thing I can offer up: the Maxima’s piped-in engine note.

(Read More…)

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