This bulletin applies to 2016-2018 Chevy Corvettes equipped with a 6.2L LT1/LT4 engine. The vehicle may have a concern with coolant loss and/or coolant odor. If the coolant is low, pressure test the cooling system to check for leaks at the outer cylinder head bolts.
Owners of 2015-2016 Cadillac Escalade vehicles may comment that they smell coolant while driving or when outside of the vehicle. A coolant leak may be found under the front of the vehicle.
When a vehicle rolls into your service bay for an inspection or any other problem, it’s a good idea to make sure that the vehicle gets a good visual check as well. You want to take care of your customers and give them a good sense of peace of mind so they know you are looking out for their best interests.
This bulletin applies to 2012-2019 Audi A4 Quattro vehicles equipped with a 2.0L engine. The MIL may be on and low coolant level may be indicated.
Ford cautions about the use of tap water when final flushing the cooling system of a 6.0L or 6.4L diesel engine in 2003-2010 F-Super Duty trucks. The use of tap water in some geographic areas can lead to unacceptable scaling and/or corrosion within the cooling system (water jackets/passages) as well as decreased coolant pump life.
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