I am deeply concerned that GM is once again exhibiting negligence in putting cost savings / profit above public safety equivalent to the Infamous GM Ignition Switch recall situation in the recent past.
Reference the below background information on GM's L4 - 2.4L 4 Cylinder Engines:
Please reference Document ID: 4821148 #12313D: Special Coverage - Engine Balance
Chain and Fuel Pump - (June 6, 2017)
This special coverage bulletin was provided by my mechanic at Midas and a GM Dealership from the http://alldatapro.com website.
Special extended warranty repairs are supposed to be covered via this bulletin for 120, 000 miles or 10 years for GM Vehicles that have the L4 Engine including the 2011 Buick Regal. My 2011 Buick Regal is definitely exhibiting all symptoms / problems that are well known with the General Motors L4 - 2.4 L Four Cylinder Engine.
See information below about oil consumption and engine performance symptoms:
https://www.msn.com/en-us/autos/research/seven-engines-to-avoid-like-the-plague/ar-AAvZ7VM#page=3
"Seven Engines to Avoid like The Plague
Mark Toljagic 4/16/2018
General Motors 2.4-L Four Cylinder
Problem Engines
© Provided by Toronto Star Newspapers Limited Problem Engines
The redesigned 2010 Chevrolet Equinox and all-new GMC Terrain crossovers were big sellers - until owners began reporting the base 2.4-L four-cylinder engine eating itself after the timing chain stretched and jumped the gear teeth. Plenty of timing chains, camshaft actuators and entire engines have been replaced, sometimes more than once. Beware if your four-cylinder Chevy Equinox/ GMC Terrain / Buick LaCrosse & Buick Regal starts chugging like an old Massey-Ferguson tractor.
A class-action lawsuit alleges the four-cylinder engine consumes as much as a litre of oil per 1, 600 km travelled in [protected] models. Some may be candidates for new pistons and piston rings. On models built before March 2011, there is a strong correlation between leaking high-pressure fuel pumps diluting the oil and resulting ring wear.
Dealers use an oil consumption test to measure wear: if a quart (0.95 L) disappears in under 3, 200 km, the engine is considered defective. Some owners have documented a quart or liter of oil lost in as little as 600 km. Dealers will replace the four piston assemblies. The top compression ring in the rebuild kit has a more robust coating and the updated fuel pump has an improved seal."
I am a former GM Powertrain Division Engineering / Salaried employee where I had a 20 year career background with engines and transmissions. The L4-2.4L Engine is a known safety hazard as the engine can fail while under normal operation on a highway or city street with potential catastrophic results. Even with the mechanic OE bulletin referenced above, GM refuses to cover expenses for permanent repairs for the 2011 Buick Regal. Instead Dealership customer service representatives are instructing vehicle owners to just add oil frequently. (Note: The Low Oil Indicator is also defective.)
Please also reference the Class Action Law suit below:
https://www.classaction.org/media/berman-et-al-v-generalmotors-
llc-joint-notice-of-settlement.pdf
GM Corporation Customer Service (Myra), Professional Mechanics, and GM's Dealership Service Centers (Buick and Cadillac) all are fully aware of the catastrophic safety consequences that this Engine poses to the general public; yet, a comprehensive recall and appropriate extended warranty coverage is being denied.
The L4 2.4 Liter Four Cylinder engine is a fatal accident waiting to happen. Sadly, GM Business / Customer representatives ("Myra" is the only name provided on GM / Buick customer service line) are sweeping this issue under the carpet, sacrificing public safety for cost savings as only VIN #s that actively participated in the class action law suit are covered by the Special Warranty Coverage Bulletin instead of all vehicles with this problematic and unsafe engine in order to mitigate cost impact to the company executives.
Apparently, General Motors Leadership has forgotten that it was the general public / taxpayers that bailed out the corporation from bankruptcy and is willing to sacrifice their well being for the sake of future cost savings and executive bonuses...
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