There's the Rub With Chevy Silverado
This bulletin applies to 2014-2018 Chevy Silverado 1500, 2019 Silverado LD, 2015-2019 Suburban/Tahoe vehicles, equipped with a 5.3L L83 or 6.2L L86 engine. Some owners may comment about the illumination of the SES MIL and ABS MIL, a Service Suspension System message, misfire, hesitation, low engine power, erratic transmission shifting, no-crank, A/C inoperative, a low engine oil level message and/or fuse(s) blown (STRTR fuse and/or A/C clutch fuse). In addition, an array of possible DTCs may be stored. This issue could be caused by the engine harness rubbing on the engine vacuum pump pulley.
Inspect the harness in this area and repair as needed. Re-secure the harness away from the pulley.
About the Author
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.
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.