Jump to content

Recommended Posts

Posted

2019Silverado_Mechanical_Leak1.jpg

Zane Merva

Executive Editor, GM-Trucks.com

7/31/18

 

We've certainly seen a lot of photos of the all new 2019 Silverado and Sierra. Photos of the interior and photos of the trim packages. Photos on-road and photos off-road. But what we have not seen yet is how the 2019 Silverado and Sierra's new T1XX platform looks mechanically under the surface. Until today. 

 

GM-Trucks.com has obtained exclusive copies of parts diagrams for the next generation Silverado. From these drawings we can gleam just a little bit more about how the next generation trucks are different from their predecessors. 

 

Set One: Front Suspension, Differential, Axle, and Driveshaft

Our first batch of drawings show us a few things, mainly the new T1XX front suspension setup (which is similar to the Colorado), a new HD-like front differential, a new rear axle with new yoke, and a new driveshaft setup. 

2019Silverado_Mechanical_Leak2.jpg

2019Silverado_Mechanical_Leak4.jpg

2019Silverado_Mechanical_Leak3.jpg

2019Silverado_Mechanical_Leak5.jpg

2019Silverado_Mechanical_Leak6.jpg

 

Set Two: Front and Rear Brake Calipers

Our second batch of drawings show the new 2019 T1XX front and rear calipers (with electronic parking brake). 

2019Silverado_Mechanical_Leak8.jpg

2019Silverado_Mechanical_Leak7.jpg

 

Set Three: Engine Blow Out, Dual Exhaust, Cold Air Factory Intake

And our third batch of drawings show what the new L87/L84 looks like blown apart (with individual cylinder deactivation instead of an AFM VLOM). We also see the new dual exhaust and brand new airbox design that draws cool air from the front of the vehicle instead of the side fender. 

 

2019Silverado_Mechanical_Leak9.jpg

2019Silverado_Mechanical_Leak10.jpg

2019Silverado_Mechanical_Leak1.jpg

 

 Thanks to our "GM deepthroat" for sending these files our way. Next week we head to Wyoming for our first drive of the 2019 Silverado while our 2019 Silverado LTZ is being shipped to our dealership from the factory. 

Posted

Wow big departure for the front brakes.  Hopefully it cuts down on brake wear/rust issues that the current and former designs are susceptible to. 

 

Interesting change on the intake.  Aerodynamics?  You close the fender off, that's less air being diverted through it.   

 

The dual exhaust looks like a really nice setup.  Shame the tips are duds, but I guess that's good? 

 

Bout time the split case front end died.  HD debuted that style front diff first, Gen 2 Colorado/Canyon have it as well, both before the 1/2 ton.  Should add some welcome front end strength, as evident by VYU plow prep being available on all 1/2 ton cab configs with the 5.3. 

Posted

Looks like the air filter that fit the 2000 model GMT800 and up will no longer fit the 2019.  I guess it is odd to have the same filter fit for so many years and I guess it had to end some time.

Posted

I think this is proof at least that GM is finally truly changing the Silverado and not relying so much on past platforms.

I like the rectangular dual exhaust tips/bumper area.

Different than Ram and now Ferd's  2019 dual exhaust F150 setup.

Posted

Wow, the rear differential is that bad in the 14-18 trucks that they only used it for 4 years before redesigning it again.  Hopefully this will solve all the manufacturing issues they had with the previous ones.

Posted
Wow, the rear differential is that bad in the 14-18 trucks that they only used it for 4 years before redesigning it again.  Hopefully this will solve all the manufacturing issues they had with the previous ones.
Just having mine done under power train warranty now... Only 300 miles to 100k... Close one.
Posted

My 2015 Silverado was so bad I went through 4 rear differentials before I had one that worked (didn't whine) in less than 2300 miles. (no that's not a typo).

Posted

I would be curious to see if the new 2019 bumper would mount up to the 14-18 K2 trucks.

I really like the dual exhaust and rectangular tip/bumper cutout on the new T1's

Only issue might be where the bumper wraps farther around the bed sides.

Posted

Are they actually scooping air from the front nose.  That looks more like some sort of ram scoop to catch air from the base of the hood.

 

 

Posted
23 hours ago, hirdlej said:

Wow, the rear differential is that bad in the 14-18 trucks that they only used it for 4 years before redesigning it again.  Hopefully this will solve all the manufacturing issues they had with the previous ones.

It used to be supplied solely by AAM. Now GM is building their own version in Michigan. That's why it looks different. 

Posted
23 hours ago, hirdlej said:

My 2015 Silverado was so bad I went through 4 rear differentials before I had one that worked (didn't whine) in less than 2300 miles. (no that's not a typo).

First time I've heard of someone going through 4 diffs in the 12 bolt. That's almost as bad as that worthless 10.5" axle Toyota uses in 2nd gen Tundra. 

Posted
On ‎8‎/‎2‎/‎2018 at 10:43 AM, BigBadSierra said:

Are they actually scooping air from the front nose.  That looks more like some sort of ram scoop to catch air from the base of the hood.

 

 

The intake air is coming from the front now instead of the fender.

Probably not a Ram Air type of system due to all the jogs and bends to get to the intake itself.

Posted
3 hours ago, Sierra Dan said:

The intake air is coming from the front now instead of the fender.

Probably not a Ram Air type of system due to all the jogs and bends to get to the intake itself.

It  will for sure grab more air then a pip just facing down..

Posted

My 2018 GMC Denali had Magnetic Ride Control adaptive damping suspension.  Why don't these Chevy trucks have this?

Archived

This topic is now archived and is closed to further replies.

  • Latest Articles

  • Posts

    • Common failure.  You need to replace the fuel door housing.   The painted cover transfers over to the new housing.  To remove the old one there is 4 spots where you poke the plastic to release it.  
    • No such thing as regenerative braking on a pure ICE vehicle.     Regenerative braking is the re-capture of energy from electric motors and stores it in the battery pack.  So hybrids, PHEV and EVs have regenerative braking.     What you are seeing is the charging system changing modes is all.  Its likely entering charge mode for some sort of reason is all.  All of the charging modes will be listed below.   As for L10 vs D.  L10 turns off automatic grade braking.  L10 puts you in control of grade downshifts where in D it will automatically do it based on brake pedal position and other factors.  Otherwise L10 and D drive exactly the same aside from that one aspect.    Battery Sulfation Mode The BCM will enter this mode when the interpreted Generator output voltage is less than 13.2 V for 45 minutes. When this condition exists the BCM will enter Charge Mode for 2–3 minutes. The BCM will then determine which mode to enter depending on voltage requirements.   Charge Mode The BCM will enter Charge Mode when ever one of the following conditions are met:   Windshield wipers are ON for more than 3 s. Climate Control Voltage Boost Mode Request is true, as sensed by the HVAC control module via serial data. High speed cooling fan, rear defogger, and HVAC high speed blower operation can cause the BCM to enter the Charge Mode. The estimated battery temperature is less than 0°C (32°F). Battery State of Charge is less than 80%. Vehicle speed is greater than 145 km/h (90 mph) A current sensor malfunction exists. System voltage is determined to be below 12.56 V When any one of these conditions is met, the system will set targeted generator output voltage to a charging voltage between 13.9–15.5 V, depending on the battery state of charge and estimated battery temperature.   Fuel Economy Mode The BCM will enter Fuel Economy Mode when the estimated battery temperature is at least 0°C (32°F) but less than or equal to 80°C (176°F), the calculated battery current is less than 15 A and greater than −8 A, and the battery state-of-charge is greater than or equal to 80%. Its targeted generator output voltage is the open circuit voltage of the battery and can be between 12.5–13.1 V. When fuel economy mode is active, the generator is not charging, only maintaining open circuit battery voltage. The BCM will exit this mode and enter Charge Mode when any of the conditions described above are present.   Headlamp Mode The BCM will enter Headlamp Mode when ever the head lamps are ON (high or low beams). Voltage will be regulated between 13.9–14.5 V.   Start Up Mode When the engine is started the BCM sets a targeted generator output voltage of 14.5 V for 30 s.   Tow/Haul Mode (if applicable) Pressing the Tow/Haul Mode button located on the center stack, the vehicle system voltage is raised and the remote (non-vehicle) battery will be charged. Having the headlamps on will raise the system voltage and if the Tow/Haul button is applied it will not serve any purpose. The voltage is regulated between 13.9-14.5 V.      
    • Hello from Australia Just sharing that there is now a way to delete the active shutters entirely with just a plug in module. Opens up tons of room to light bars etc.
    • I have an observation and a question... 1) I watch the voltage closely because I have had to dial in the cut-in/cut-out voltages of the battery separator to my camper.  The "smart" charging drives me nuts.  Anyway, I noticed that when coasting for a while, and especially if lightly using the brakes (though not necessary), the voltage goes up from mid/high-13 volts to mid/high-14 volts.  Then it drops back down after stopping or going again.  Consistently!   The only explanation I can come up with is REGENERATIVE BRAKING!  Well, maybe that's a little bit of an exaggeration, but it's certainly free extra battery charging.   2) Driving on mountain roads I will use L and vary the max gear.  Things straighten out and I end up in L10.  Sometimes I leave it there for a while.  Is there any difference between L10 and D?   
  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...