Exhaust
Muffler, pipes, catalytic converter, exhaust manifold, heat shields, leaks.
What Owners Say
"Poor back-up lighting"
Anonymous, PA (2021 GMC Sierra 1500 SLT 5.3-L V8)"Windshield wiper swirch"
Anonymous, VT (2021 GMC Sierra 1500 Elevation 2.7-L 4 Cyl turbo)"Water pump.idler failed.cam shaft destroyed the engune"
Anonymous A., TX (2021 GMC Sierra 1500 AT4 6.2-L V8)"Trunk latch Wong open"
Anonymous A., (2021 GMC Sierra 1500 Denali 3.0-L 6 Cyl diesel)""Presently under recall for valves/lifter problem, which appears to be the same problem that led to an $8500 service bill of my 2017 GMC pickup which precipitated the trade for this vehicle.""
Anonymous, TN (2021 GMC Sierra 1500 SLT 6.2-L V8)"Engine light come on it would reset itself many times, but in the end it continuously this was resolved. Engine coolant flow control valve needed to be replaced along with the engine coolant temp sensor $794 I also had a oil leak which ended up being gasket's which was $362"
Anonymous A., IA (2021 GMC Sierra 1500 Elevation 3.0-L 6 Cyl diesel)
""Check Engine light came on 4 times in 3 months for P2002 Diesel Particulate Filter (DPF) low efficiency. Experienced mediocre dealer service, was in shop 3 times (under warranty) for 4 weeks in total. 2 different dealers told me GM is reluctant to replace DPF (10 hours labor, Part $1000). Last time, the truck was at dealer for 3 weeks to replace the DPF. Check engine light (CEL) came back on before I got home after the last service for P2002 code. CEL went off the next day - all codes gone. Only driven that one day since the last service. So hoping it's fixed.""
Anonymous, KY (2021 GMC Sierra 1500 Denali 3.0-L 6 Cyl diesel)