Ticking Express

Oct. 9, 2016
This bulletin applies to 2012-2013 Chevy Express vans equipped with the 4L60E automatic transmission. On vehicles manufactured prior to Jan. 15, 2013, some customers may comment about a ticking noise when driving above 30 mph in third and fourth gear.

This bulletin applies to 2012-2013 Chevy Express vans equipped with the 4L60E automatic transmission. On vehicles manufactured prior to Jan. 15, 2013, some customers may comment about a ticking noise when driving above 30 mph in third and fourth gear.

The noise is present with the TCC engaged or disengaged and may be present in second gear under certain driving conditions. This concern may be caused by a mis-machined reaction carrier which may cause the low reverse clutch plates to stick and release, creating the ticking noise. The reaction carrier may have an out-of-round condition due to being mis-machined.

Replace the reaction carrier, low and reverse roller clutch race, low and reverse roller clutch and the low and reverse clutch plates.

Part number              Item

24241237…………….Reaction carrier

24217231…………….Roller

08673300………….…Race

Sponsored Recommendations

Tesla service, repair, and diagnostics

Keep update-to-date on how to maintain your customer's Tesla vehicles.

Tool Review: Ascot Supply 3/4" Drive 600 ft-lbs Split Beam Torque Wrench, No. 168-00600

Reviewed by Eric Moore, manager at DeMary Truck in Columbus, Ohio.

Diagnosing an engine misfire

Recognizing a misfire is the easy part; the challenge is determining its cause.

The ‘Iron Giant’

This technician spent two and half years putting together his ‘giant’ of a toolbox setup.

Voice Your Opinion!

To join the conversation, and become an exclusive member of Vehicle Service Pros, create an account today!