Displaying 1 - 10 of 111

TOPIC : Chevrolet

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Checking Crank Pulley Runout

Owners of 2012 Chevy Caprice vehicles (civilian or police) may complain about a belt squeal noise and/or a perceived crankshaft balancer wobble. In most cases, the wobble is an optical illusion because the design of the balancer gives the appearance that it is moving laterally more than it is.

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Popping Camaro

This bulletin applies to 2010-2014 Chevy Camaro models. The customer may comment about an intermittent pop or multiple popping noises from the rear of the vehicle (this may occur shortly after a cold start or EVAP purge event).

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Avoid Air in Power Steering

This bulletin applies to 2008-2013 Buick Enclave, 2009-2013 Chevy Traverse, 2007-2013 GMC Acadia and 2007-2010 Saturn Outlook vehicles that require replacement of a power steering cooler. This bulletin outlines the procedure to prevent introducing a large amount of air into the system during service.

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Another Mystery Buzz

Some owners of 2007-2013 Chevy Avalanche, Silverado, Suburban and Tahoe models may complain about a buzz or rattle noise during light acceleration around 1,200-2,000 rpm. The noise may also sound like a squeak, creak or tap coming from behind the instrument panel. This could be caused by the fuel line or fuel line bracket above the transmission contacting the floor pan.

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Air Leak Doesn’t Mean Trouble

Input housing and shaft assemblies from transmissions have been incorrectly considered defective when air bubbles are observed coming from between the input shaft and the housing during an air check.

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Steering Angle Reprogram

This bulletin applies to 2011 Chevy HHR vehicles equipped with electronic stability control. Customers may comment that the Service Electronic Stability Control (ESC) message appears in the driver information center (DIC) and/or the ESC system activates at inappropriate times (modulates brakes and/or limits engine torque).

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A Sensible Smoke

This bulletin applies to 2000-2012 GM passenger cars and light-duty trucks equipped with gasoline engines, where the SES light is on and any of the following fuel trim and/or O2 sensor-related codes are stored:

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Chevy Rubbing DTC

In “rare” cases, some owners of 2014 Chevy Equinox vehicles equipped with a 3.6L engine may comment that the MIL is on, accompanied by poor performance and reduced power. Technicians may find DTC P0641 stored.

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Computer Prank

This bulletin applies to 2014 Chevy Malibu vehicles. A technician may find when performing a DTC check using a scan tool that the Multi-axis Acceleration Sensor Module has a DTC U0121 (loss of communication with the EBCM) set in history.

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Missing Video

This bulletin applies to 2013 Chevy Tahoe 4WD vehicles equipped with Single Rear Video Screen or Dual Rear Video Screens, where customers complain that one or both of the roof mounted video screens will not turn on.

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