TOPIC : Chevy
Dirty Diesel Deeds
Chevy and GMC vehicles equipped with LGH, LML, LUZ, LWN, L5P and LH7 diesel engines may exhibit excessive smoke at the tailpipe, with DTC P2002 set. This may be the result of a cracked or broken diesel particulate filter (DPF).
Vette’s a Bit Rich
This bulletin applies to 2016-2019 Chevy Corvette models equipped with a 6.2L LT1/LT4/LT5 engine. The SES lamp may be on and rich running condition DTCs P0172 and P0175 may be stored. The possible cause involves the high pressure fuel pump.
Funky Flexplate
Owners of 2014-2016 Chevy Corvettes equipped with a 6.2L LT1 or LT4 engine and automatic transmission may comment about a rattle noise heard from the bell housing area. If service manual diagnosis does not isolate the noise, the culprit may be the flexplate due to distortion or cracking.
Fuel in Oil
This bulletin applies to 2013-2019 Chevy Malibu vehicles equipped with a 2.0L engine. The MIL may be on, accompanied by DTC P0172 (fuel trim system rich) set in the ECM. The condition may be caused by driving the vehicle in short intervals, allowing excess fuel to collect in the crankcase.
Duramax Rear Water Seals
This bulletin applies to 2010-2012 Chevy Express and 2011-2012 Silverado 2500HD/3500 series trucks equipped with a 6.6L Duramax diesel engine. Some vehicles were involved in a mid-year change. Some may have been built with a flywheel housing that uses two different style seals (left side and right side seals are different).
Loose Oil Tube
Some owners of 2006-2012 Chevy Corvette Z06 or 2009-2012 ZR1 models may comment on a rattle or tapping noise from under the hood.
Hot Vette
This bulletin applies to 2014-2019 Chevy Corvettes equipped with a 6.2L LT1, LT4 or LT5 engine, regarding a concern of engine thermostat tick noise and/or running hot.
Vette Pad Sensor Caution
2011-2012 Corvette models equipped with the Z06 with Z07 and 2009-2012 Corvette ZR1 models equipped with J57 ceramic brake packages feature ceramic brake rotors that use an electronic sensor to indicate the need for brake pad replacement. The end of service life is communicated to the driver on the DIC (driver information center) with the message “CHANGE BRAKE PADS.”
Not a Cruise in the Park
This bulletin applies to 2013-2018 Chevy Cruze vehicles. This bulletin is intended to produce direction and examples when diagnosing multiple DTCs, one of which includes U****Byte 71 DTC. Any control module may set this DTC for one of its inputs and data that is shared across the communication buss for other modules to do their respective functions.
Camaro Pop
Owners of 2010-2014 Chevy Camaro vehicles may comment about an intermittent pop or multiple popping noises from the rear of the vehicle shortly after a cold start or EVAP purge event.
