Chevy Spark has Transmission Issue

This bulletin applies to 2014-2019 Chevy Spark vehicles equipped with a CVY7 automatic transmission. Some customers may comment about transmission operation concerns, transmission lack of performance and/or an illuminated MIL. The technician may find the following DTCs set in the transmission control module (TCM):

Mike Mavrigian

Information courtesy of Mitchell 1

Jan. 4, 2021

P0871 (transmission fluid pressure switch 3 system performance)
P2714 (pressure control solenoid valve 4 stuck off – hydraulic/mechanical problem)

This condition may be caused by the transmission fluid pressure switch being contaminated with debris coming from the valve body.

Clear the codes and road test the vehicle. If the DTCs do not reset, no repairs should be done. If the DTCs set, replace the transmission fluid pressure switch. If the vehicle was released to the customer because the codes did not rest but later returns with the same problem, replace the transmission fluid pressure switch. The replacement switch is available as P/N 25202299.

About the Author

Mike Mavrigian

Motor Age Editor

Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety of specialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.

Information courtesy of Mitchell 1

Information for Technical Service Bulletins comes from ProDemand, Mitchell 1's auto repair information software for domestic and import vehicles. Headquartered in San Diego, Mitchell 1 has provided quality repair information solutions to the automotive industry since 1918.