The National Highway Traffic Safety Administration (NHTSA) has launched an inquiry into acceleration problems for Ford’s 3.5-liter EcoBoost V6, turbocharged engines.
The inquiry is the result of three Ohio Ford owners who filed a suit against Ford alleging that their EcoBoost V6 engines shudder and loses power during acceleration.
According to Automotive News, the industry’s trade paper, the acceleration problems may affect 400,000 late-model Ford F150 pickups. The probe, however, covers 2011-2013 models, says NHTSA.
The lawsuit also alleges that more than 100 complaints about the 6-cylinder versions of the engine (Ford also produces three and four-cylinder EcoBoost engines) have been filed with NHTSA and a similar lawsuit has been filed in Louisiana alleging that many Ford F150 EcoBoost truck owners have reported their trucks have stalled, shuddered and failed to accelerate and/or entered into a limp mode while driving. The law firm who filed the suit claims the problem is related to the Charge Air Cooler, from which Ford has issued service bulletins on that part.
Automotive News says that the reports NHTSA received was that these incidents happened while driving in humid, rainy, damp conditions.
So far Ford hasn’t recalled any vehicles for the alleged defect, but they are cooperating in the investigation.
CHEVY ANNOUNCES STINGRAY’S POWER SPECS
At the preliminary debut of the 2014 Corvette Stingray, Chevy didn’t release specs on the newly redesigned sports car. Well now they’re in.
The 2014 Stingray’s LT1 engine has been SAE certified at 455-hp and 460 lb/ft of torque. This is, says Chevy, the highest standard power ratings ever for the Corvette that is expected to deliver 26 mpg on the highway.
According to Chevy, at 74-hp per liter, the LT1 has greater power density than the C6 Corvette’s LS3 6.2L engine, and even the C6 ZO6’s racing-derived 7.0L, LS7 engine. It also produces torque comparable to the LS7 and its peak torque is within 5 lb/ft of the 7.0L engine. What’s interesting is that torque is generated early and sustained across the rpm ban, with 316 lb/ft available at only 1,000 rpm. This will give the Stingray excellent acceleration at all speeds.
Chevy estimates the Stingray will run 0-60 in less than four seconds.
And for the first time ever on a Corvette, Active Fuel Management or cylinder deactivation is being used to save fuel by shutting down half of the engine’s cylinders in light load driving.
The 2014 Stingrays LT1 engine is the fifth generation of the small block engine family that debuted in the Corvette in 1955.
In 2012, the Small Block-powered Corvette Racing C6.R beat Ferrari, BMW and Porsche to sweep the drivers’ team and manufacturer championships in production-based American Lemans Series GT class. This makes, says Chevy, the most successful team in ALMS history with a total of 77 class wins, eight drivers’ championships and nine manufacturer and team championships since 2001.
The Stingray coupe goes on sale this fall with a convertible following by the end of the year.
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