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2015 Silverado & Sierra to get 8-speed tran...

Jul 18 2014 09:04 AM | Zane in News

By Zane Merva
Executive Editor, GM-Trucks.com
General Motors has confirmed that every 2015 full-size truck and suv equipped with the 6.2L EcoTec3 engine will be offered with a brand new GM developed 8-speed transmission. 
This includes the Chevrolet Silverado, Suburban, Tahoe and GMC Sierra, Yukon, and YukonXL. 
The new Hydra-Matic 8L90 eight-speed is similar in size to the outgoing 6-speed and will allow lower rear axle ratios for improved fuel economy. 
Fuel economy and additional specifications for 8-speed equipped vehicles will be announced later this year. 

Read story →    29 comments    -----    2015, silverado, sierra, 8-speed

Shout-Out to GMC The Magazine

Jul 08 2014 02:03 PM | Zane in News

When the Spring 2014 edition of GMC The Magazine showed up on our desks a few weeks ago we didn't expect to find someone from GM-Trucks.com mentioned inside.

Read story →    6 comments    -----    gmc the magazine, gmc, sierra and 1 more...

15 Silverado/Sierra 1500 towing capacity lower...

Jun 19 2014 08:48 AM | Zane in News

General Motors has announced that starting with the 2015 model year it will report towing capacity determined using SAE J2807 recommended testing practices. The more rigorous testing procedure has been held at arms length by the big three for years. Pickup producers have long overstated the capacity of their trucks using internal test procedures. The new J2807 standard brings everyone up to the same playing field. This means every pickup is finally being rated for towing capacity in the exact same manner from the 2015 model year forward. 
That's great news for consumers but the much more rigorous test lowers the "official" capacity numbers that many automakers love to throw around in ads.The Silverado and Sierra 1500 will see their towing capacity adjusted slightly down for the 2015 model year due to the new testing requirements. Only one Silverado and Sierra configuration, a 2-wheel-drive double cab with the optional 6.2L engine and the Max-Trailering package, will retain the prior year's rating of 12,000lbs. 

Read story →    8 comments    -----    2015, silverado, sierra, j2807 and 8 more...

Final 2015 Colorado and Canyon power figures re...

Jun 18 2014 08:34 AM | Zane in News

By Zane Merva
Executive Editor, GM-Trucks.com

General Motors has released the final engine power figures for the up coming 2015 Chevrolet Colorado and GMC Canyon.
The standard 2.5L four-cylinder engine will produce 200-horsepower and 191 ft-lb of torque while the optional 3.6L six-cylinder engine will be rated at 305-horsepower and 269 ft-lb. Properly equipped, the mid-size truck duo will be rated to tow up to 7,000lbs when it goes on sale later this year.
No further information on the optional 2016 2.8L Duramax diesel engine was released at this time. 

Read story →    12 comments    -----    2015, chevrolet, chevy, colorado and 6 more...

General Motors US May 2014 Sales Up 13 percent

Jun 03 2014 08:47 AM | Zane in News

By Zane Merva
Executive Editor, GM-Trucks.com

General Motors reported United States May 2014 sales figures this morning. The company's dealer network delivered 284,694 vehicles last month, up 13% from May of 2013. It was the company's best May sales numbers in seven years. 
Sales of the full-size Silverado and Sierra also saw a bounce, with the Silverado gaining 8-percent and the Sierra gaining a healthy 14-percent over last May's figures. Sales of GM's all new 2015 full-size SUVs doubled.

Read story →    6 comments    -----    gm, general motors, sales report and 3 more...

Introducing the 2015 GMC Sierra All-Terrain HD

May 21 2014 01:14 PM | Zane in News

GMC has announced that it will offer its popular All-Terrain package as an option on the 2015 Sierra Heavy-Duty. Designed as an "off-road-inspired" model slotting just below the top trim Denali, the All-Terrain will be available on double-cab and crew-cab 2500HD and 3500HD models. 
When Sierra HD buyers select the All-Terrain model, they will get:
  • Exclusive design features, including a chrome surround grille and exterior graphics
  • Aluminum under-body shields
  • 18-inch Six-spoke chrome cast-aluminum wheels standard
  • 20-inch chrome wheels optional
  • 3500HD includes adjustable camper mirrors with a chrome cap
  • LED DRL headlights
  • Body-colored bumpers
  • Chrome mirror caps and body-side molding
  • All-Terrain logo on the instrument cluster
  • Rear-view camera is standard
All-Terrain models will come standard with a 6.0L Gas V8 with GMC's 6.6L Duramax Diesel as an option. 

Read story →    12 comments    *****

GM surpasses 400-installed EV charging stations

May 21 2014 10:22 AM | Zane in News

General Motors has announced a milestone in the company's efforts to build out a nation-wide electric vehicle charging station system. 
The company has now installed 401-charging stations across the United States, with 20% of them powered by solar electricity. A majority of the stations, 269, are in Michigan and located in or near GM facilities. 

Read story →    0 comments    -----    gm, general motors, ev and 2 more...

Pardon the mess - welcome to the new homepage

May 20 2014 04:04 PM | Zane in News

As you might have noticed, we've "turned on" the new home-page for GM-Trucks.com. It's integrated with the forum and will allow us to share news and build resources better than ever before. We're very excited. 
However, we need to clean things up a little and make it look better. It's going to take us a few days, so bear with us while we remodel the place. :cheers:

Read story →    0 comments    -----    site news

GM Recalls Additional 2.42-million vehicles

May 20 2014 03:23 PM | Zane in News

General Motors has recalled an additional 2.42-million vehicles in the US. 
  • 1,339,355 Buick Enclave, Chevrolet Traverse, GMC Acadia full-size crossovers from the 2009-2014 model years and Saturn Outlooks from 2009-2010 because front safety lap belt cables can fatigue and separate over time. In a crash, a separated cable could increase the risk of injury to front seat passengers.
  • 1,075,102 of the previous generation 4-speed automatic transmission Chevrolet Malibu and from the 2004-2008 model years and Pontiac G6 from the 2005-2008 model years  because of a shift cable that could wear out over time, resulting in mismatches of the gear position indicated by the shift lever.  
  • 1,402 Cadillac Escalades and Escalade ESVs from the 2015 model year because an insufficiently heated plastic weld that attaches the passenger side air bag to the instrument panel assembly could result in a partial deployment of the air bag in the event of a crash.
  • 58 Chevrolet Silverado HD and GMC Sierra HD full-size pickups from the 2015 model year because retention clips attaching the generator fuse block to the vehicle body can become loose and lead to a potential fire.

Read story →    0 comments    -----    recall, gm, general motors and 12 more...

Chevrolet Tahoe and Suburban Demand Exceeding E...

May 08 2014 08:49 PM | Chris in News

DETROIT – The all-new 2015 Chevrolet Tahoe and Suburban are once again proving why they are the segment leaders with demand for the updated SUVs outpacing expectations.

Chevrolet created the SUV segment with the Suburban in 1935, and has been the sales leader in the full-size SUV market ever since. Today, the average turn rate, or how quickly it takes a particular vehicle to sell after it is delivered to the dealer, is 17 days for the Tahoe and 10 days for the Suburban.

Read story →    0 comments    -----    press release, tahoe, suburban and 6 more...

Recently Posted Forum Topics

New HD Mirrors

2015 Chevrolet Silverado & GMC Sierra 2500/3500 HD Today, 01:36 AM
Anybody's new hd come with the new style mirrors?
Full topic ›

Bilstein 5100 ontop of RC 2" level

Transmission, Suspension, Transfer Case, & Axles Yesterday, 10:48 PM
Hey,   Im thinking of adding bilstein 5100 struts ontop of my RC levelling kit to get 2.5" on my 2009 half ton. I'm running 285/65/18 terras on stock all terrain wheels right now with a little rub on my mudflap at full lock.   With the added 0.5" what are the chances I could fit a method 18X9 +18mm wheel with the same tires? Im thinking it might rub pretty bad.     Thoughts?
Full topic ›


Gen III and IV Small Block & Drivetrain Yesterday, 10:06 PM
What all can I do to the tranny to make my truck have just a lil more power without going crazy exspensive or any other ways you can think of Already have: CAI Exhaust cat back Sent from my iPhone using Tapatalk
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Retrofit 2015 Yukon Denali HIDs to 2015 Sierra 2500HD Denali

Ask the GM Technician Yesterday, 10:00 PM
Can the HID lights on the 2105 Yukon Denalis be retrofit into the 2015 Sierra 2500HD Denali? 
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owner of 03 gmc 1500 4.8

1999-2006 & 2007-2013 Chevrolet Silverado & GMC Sierra 1500 Yesterday, 09:59 PM
Hello I'm new here! I've been trying to figure out why my truck starts just fine then after a few secs it starts to idle down and run rough but not die! but if I feather the throttle thru it for a few secs it smooth's back out then seems to be fine until I shut it off then when I start it up again then it repeats this!
Full topic ›

Wanted: 2014 Silverado driver headlight

For Sale/Wanted Yesterday, 08:19 PM
Bought a preowned 2014, left the dealer lot and a few days later I notice the tab under the headlight that holds the plastic bumper piece is broken, causing the plastic piece to sag a little. I signed the "as-is" paper so the dealership won't do shit. I need a driver side headlight, cheap. Anybody help me out? Thanks!
Full topic ›

1st post. Sierra slt or ltz silverado

New Member Introductions Yesterday, 08:16 PM
Hi. I really need some advice. I'm in the process of picking between the Sierra SLT and LTZ silverado. Both are about the same price. The only difference between the two is that the ltz had a standard bed and the other a short bed. Is the resale value of the gmc better down the line or will the ltz be better? What haven't I considered? Thanks and I loom forward to being a full member of this forum once I make up my mind and buy the truck.
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Great Day today!

New Member Introductions Yesterday, 07:37 PM
I'm a newcomer to this forum but I'm really happy that I had found this!
Full topic ›

Iam doing it again!

2014+ Chevrolet Silverado & GMC Sierra 1500 Yesterday, 07:16 PM
Well I am in the process of trading in my 2014 for another 2014, Have had my 2014 LT for a year now and going to trade up to a fully loaded LTZ, Hopefully Blue Topaz with Cocoa dune interior, barring all the issues These trucks are still by far the best looking trucks on the road.., I've had them all but the Silverado has always been my favourite.  
Full topic ›

Almost mine....

2014+ Chevrolet Silverado & GMC Sierra 1500 Yesterday, 06:27 PM
I went to look at the truck I ordered. They still need to do PDI and undercoating. Double cab LT with the 5.3L and Max towing. Brownstone metallic. MSRP was $47,595. They are throwing in undercoating, but they sold me on katzin heated leather seats for $2500. Total out the door of $42,690. We agreed on a deal when i ordered, but they said i could choose to work a new deal when the truck arrived. I tried to get employee pricing in addition to my deal, but no dice. Apparently the deal they gave me is about $2k under invoice.    Pic:   First thing i'm buying is a set of step bars. That front lower facia thing is not going to be on there long. It looks like I can't go over a speed bump! Soem might say its not that bad, but I high centered my lifted F150 twice last year. I have plans for lift and tires, but i'm on a work site located on the other side of the city right now, so i'm going to wait until that wraps up. No need to waste a good set of ATs on pavement. This thing should save me $2 a day on fuel compared to my F150. I was thinking about transferring my headache rack to the new truck, but i'm saving about $0.50 a day in fuel now that i took it off my 150. Who knew they caused so much drag?  
Full topic ›

Newest 2014+ Silverado/Sierra/Tahoe/Suburban/Yukon Topics

2014+ Parts Diagrams / Service Manual

2014+ Chevrolet Silverado & GMC Sierra 1500 12 Aug 2013
Thought I'd post my collection (so far) of 2014 parts diagrams, for those members like me that aren't afraid to pull their trucks apart.    #'s 1 thru 3
Full topic ›

Shake or Vibration Issues

2014+ Silverado & Sierra Issues, Troubleshooting, & Recalls/Service Bulletins 04 Aug 2013
I know this is going to look suspicious being only my third post but I wasn't sure what forum to join at first. I have noticed a shake or vibration in my new 4x4 crew 5.5 box 5.3 truck it seems to come and go and has been a pain to pin point what makes it happen. I can feel it in the steering wheel, seat and sometimes the gas petal but mostly in the steering wheel. It seems to be most noticeable going up or down hill with very light acceleration but can do it on level ground at cruise speed too. And the fun part is it doesn't always do it to make it more of a challenge to diagnose it. Brought it to the dealer last week and I thought the mechanic was going to think I was crazy but he did feel it too which was a relief also the service writer test drove it after they balanced and rotated the tires and he said its slight, but he felt it too. We scheduled it to come in tomorrow and are opening a warranty claim. I have very little faith that its going to get fixed because of the nature of the vibration and it being so new that there probably isn't any info out there on what it could be. I really don't know what they can do tomorrow other then make phone calls. If I had to venture a guess I'm going to say its in the transmission or p...
Full topic ›

2014+ Lowering / Drop Kits

2014+ Silverado & Sierra Accessories & Modifications 31 Oct 2013
I'm looking for the best way to lower the rear of my 2014 2WD 1500 about 1.5".  That will still give it about a 1.5" rake which should mean level when I'm towing.  I considered drop shackles but was reading about removing the rear lift plate that's between the axle and spring.   My question is can the leaf spring sit directly on the axle or is some sort of spacer / bushing required for proper alignment and isolation?
Full topic ›

My SUPERCHARGED Denali 6.2 next week!!!!!!

Gen V Small Block Engine, Drivetrain, & Exhaust 21 Jul 2014
Hopefully. I just booked my Denali at Dasilva Motorsports in Kitchener Ontario. They will be installing the Magnusson TVS 1900. I will drop the truck,off on Tuesday July 29. It should take many couple of days to get it done. I might even be able to get it out to the track. I will keep you all posted.
Full topic ›

Driving With Parking Brake

2014+ Chevrolet Silverado & GMC Sierra 1500 Yesterday, 12:32 PM
So the other day I made a rookie mistake and drove almost 5 miles with the parking brake on! Speeds up to 55mph. I could not figure out why the truck was shaking and even pulled over thinking I had a flat tire. The strange thing is there was no light on the dash indicating it was engaged nor was there a chime to alert me. The owners manual states there should be one on all models.   My question is how bad did I screw up the rear brakes? I know its hard to say without taking a look at them. Also I cannot find anywhere if the parking brake is a drum and shoe set up on the 1500 separate from the rear caliper or if the cable simply engages the rear pads. Do you think it could have gotten hot enough to crack the drum or crumble the pads? Also I bought the truck used. Should I take the truck to the dealer and see why there was no warning. I just hate to admit to the dealer what happened. Truck has 12500 miles on it.   Thank you in advance.
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Wind noise from front/drivers side - Bulletin Pl1221

2014+ Chevrolet Silverado & GMC Sierra 1500 Yesterday, 09:16 AM
Does anyone have access to the following Bulletin?   2014 Sierra, Silverado — Excessive wind noise from front side door glass area.Do: Refer to these hints and aids in wind noise diagnosisDo Not: Replace seals or weather-strips without verifying the conditions in the bulletin firstBulletin:  PI1221   I am hoping the Bulletin may offer some hints that could be helpful so I'd like to know what it says.
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New HD Mirrors

2015 Chevrolet Silverado & GMC Sierra 2500/3500 HD Today, 01:36 AM
Anybody's new hd come with the new style mirrors?
Full topic ›

2015 8-speed transmission confirmed for 6.2L

2014+ Chevrolet Silverado & GMC Sierra 1500 18 Jul 2014
See this thread for updates: http://www.gm-trucks...d-transmission/  
Full topic ›

Mirror Iphone Display

2014+ Silverado & Sierra Accessories & Modifications 23 Jul 2014
Is there product that will mirror the iphone display. I would like to be able to view the apple maps. I know crux interfaces has products like this, but they do not say on their website if it is compatible with the trucks.     Thanks 
Full topic ›

2015 Tahoe

2015 Chevrolet Suburban/Tahoe, GMC Yukon, & Cadillac Escalade 08 Feb 2014
Got a quick look at the 2015's at a dealer in Plano, Texas. They had a white LT and a black LTZ. Didn't have time to get in them and or drive them but from the outside they look pretty good. Photos and mockups on the Chevrolet site does not do them justice. Still haven't seen the Yukons yet so we're undecided which we'll eventually get.
Full topic ›

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