2019

Terminal Test Probe Information/Repair – 2005-2021 GM Passenger Cars & Trucks

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2017 Buick Regal

NHTSA ID Number: 10184131 Manufacturer Communication Number: PIT5074N   Summary This Preliminary Information communication provides information to the technician about the use of J-35616-64B terminal test probe, replacement terminals, and terminated leads. The J-35616-64B is the latest test probe released for checking tension or probing the .64 series terminals. The test probe terminal has been released in … Read more

Information on Vibration Analysis and Diagnostic – 2014-2019 Chevrolet Silverado & GMC Sierra

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2018 Chevrolet Silverado

NHTSA ID Number: 10154650 Manufacturer Communication Number: PI1354I   Summary This preliminary bulletin provides additional guidance for diagnosing vibrations or disturbances that may occur in either the seat or steering wheel on full size pickups at speeds of 56-72 km/h (35-45 mph) or 96-120 km/h (60-70 mph), vibrations caused by wheel and tire, axle components and/or propeller shafts and how to … Read more

Cooling System Contaminated With Engine Oil – 2010-2021 Buick Cadillac Chevrolet GMC

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2020 Buick Enclave

NHTSA ID Number: 10198879 Manufacturer Communication Number: 21NA108   Summary This service bulletin provides diagnostic information for the technician regarding a customer concern of engine overheating, cooling system contaminated with engine oil.     Condition Engine is overheating. One or more of the following conditions: Oil in the coolant overflow reservoir Coolant discharging from the coolant reservoir … Read more

Information on Engine Oil Consumption Guidelines – GM Passenger Cars & Gasoline-Powered Light Duty Trucks

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General Motors

NHTSA ID Number: 10222734 Manufacturer Communication Number: 01-06-01-011M Summary This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.   All engines require oil to lubricate and protect the load bearing and internal moving parts from wear including cylinder walls, pistons and piston rings. When a piston moves down its cylinder, a … Read more

Click or Tick Noise Heard Inside Cab With Engine Running – 2015-2019 Chevrolet Colorado & GMC Canyon

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2019 Chevrolet Colorado

NHTSA ID Number: 10161030 Manufacturer Communication Number: PIT5363E   Summary This Preliminary Information communication provides information to the technician about vehicles that may have a click or tick noise heard inside cab with engine running. Technician may find the engine or High Pressure Fuel Pump tick noise that is very loud in the cab of the truck. Comparison with … Read more