A few months ago I replaced the stock speakers that came with my truck. I put in Rockford Fosgate 3-way speakers. It worked for a while, now no sound comes from the speakers. They will come in every now and then, but not often. I think it’s the head unit. What could be the issue?
Contributing Writer, GM-Trucks.com
And just like that, the all-new 2019 Sierra is last year's model! Yes, GMC is starting to prepare the 2020 model year Sierras for sale, despite it not even being Memorial Day in America yet. GMC calls its updates to the Sierra for 2020 "A robust portfolio of technologies." Does that make you want to rush out and get the 2019 lacking the robust portfolio?
“The Sierra is delivering the tech customers want in the light-duty truck market, and the 2020 model demonstrates that Professional Grade means never slowing down,” said Duncan Aldred, vice president of Global GMC. “In just its first year on the market, the 2019 Sierra introduced the available, industry-first CarbonPro Bed and MultiPro tailgate. The truck’s 2020 updates show how the Sierra continues to raise the bar year in and year out.”
Here is a rundown of what changes Sierra shoppers can expect for the new 2020 model year truck:
-Available Enhanced ProGrade Trailering features a segment-first transparent trailer view, originally introduced on the soon-to-launch 2020 Sierra HD, with a segment-leading 15 total available camera views.
-Available Camera-equipped adaptive cruise control system. The system features a single high-mounted camera behind the rearview mirror and can bring the Sierra to a complete stop.
-Elevation model now offered in Crew Cab configuration.
-First full model-year availability of the 3.0L Duramax turbo-diesel and the CarbonPro Editions with the carbon fiber bed (both late 2019 model year additions).
-Available 3.0L Duramax turbo-diesel added to CarbonPro Edition propulsion options, previously offered only with 6.2L V-8.
-10-speed automatic transmission availability expands to 5.3L V-8 models (SLT, AT4 and Denali models with 4WD).
-New trailer tow mirrors are available as a free-flow option.
-8-inch-diagonal infotainment system now capable of supporting SiriusXM with 360L (if equipped).
-2020, Sierra 1500 will be available with the upgraded 15-camera ProGrade Trailering System introduced earlier this year on the 2020 Sierra HD.
- The in-vehicle Trailering App has updated features and enhanced mobile integration for 2020
After being down nearly 6 months the Denali is almost finished. The shop based out of Hudson, NH “Granite State Dyno and Tune” has been incredible. Super professional with absolutely top notch craftsmanship.
Here is the build.
2014 Sierra Denali 6.2L
Diamond 10:7:1 Pistons.
Precision Race Components ported Cylinder Heads w/ valve job
PAC spring/ Valve Kit.
Comp Cams rocker arms/trunion
Texas Speed & Performance Stage 1 Camshaft +30% fuel lobe
TSP AFM delete kit
Lingenfelter ported 95mm throttle body
Ported L86 intake manifold.
All ARP bolts or studs.
GM ZR1 high volume fuel injectors
GM ZR1 fuel pump
Armageddon 465 LPH in tank fuel pump
Snow Performance Stage 3 Meth Kit with controller and braided lines.
Borg Warner S480 T6 Turbo 1.32 AR billet 110/96mm.
Turbo smart 50mm BOV
Turbo Smart 60mm waste gate
Pro Boost controller
fully wrapped exhaust
Mishimoto fully aluminum Radiator
Mishimoto R-Line Intercooler 31x 12x 4”
Mishimoto HD Trans Cooler
2X Mishimoto Black Aluminum catch cans.
Circle D pro 3 torque converter 2700 stall.
I think that sums it up... I will post tuning videos and some driving clips as soon as they’re available. Should have it in the next couple weeks. I’m excite!!
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