Jump to content

Finally Took the BlackBear plunge


Recommended Posts

Posted

After owning an autocal for a month or so now I finally have gotten around to having enough time to dedicate to tuning my truck. Data log has been done (hopefully correctly) and my money has been sent to Justin and Jenna. Needless to say I anxiously await the results and am very excited to see what all the fuss is about. I love my truck and can't wait to love it some more :ughdance:

  • Replies 54
  • Created
  • Last Reply
Posted

You'll be totally happy with your Black Bear tune :thumbs:

Posted

Ive had mine in for about a month now! I need to send a finally log in but this 6.2 screams like hell now!

Posted

Congrats. You will be extremely happy with it. Even with 35s and factory 3.42 gears, my 05 4sp blows my wifes stock 09 6 spd tahoe out of the water as far as drivability. It should make your 6spd a totally different animal than it is now.

Posted

Been thinking about doing the autocal tune from BB myself.

 

For those who have had it done, did you notice a change in your MPG up or down? I want to get it to mostly (hopefully) correct what I think is a detonation problem (another thread on this subforum) more then anything else.

 

Extra performance would be great but the last thing I want is to shorten the drivetrain life becuase of added stresses.

 

Thanks

Ernie

Posted

I had some similar problems on the top end of my RPM range, but Justin adjusted for that and I no longrer get any ticks or pings anywhere in the RPM range.

Posted

I had some similar problems on the top end of my RPM range, but Justin adjusted for that and I no longrer get any ticks or pings anywhere in the RPM range.

 

 

Thanks man, that helps alot actually. Sounds like my problem exactly. What did it do to your MPG?

Posted

I got an 89 octane tune, but I actually noticed a 2mpg drop with 89, so I went back to 87 (still with the 89 tune) and its back to like it was before the tune. Justin said that my mileage COULD increase to the point that it MIGHT offset the cost of 89 over 87. He also said that in some trucks it just doesnt work that way. It really all depends on too many variables, such as driving habbits, terrain, truck condition and options, and even the quality of gas.

 

I was hoping it would improve my MPG, but as long as it doesnt make it any worse, its worth it just for the increase in drivability. If gas goes down a little more, I may go back to 89 to see if the summer blend affects it any differently than the winter blend did.

 

Of course, you can see from my signature, I have added a lot of weight to my rig, so I wasnt expecting 20mpg.

Posted

Patiently waiting on my end. Will update this thread with my review/thoughts once we get to that point. Was hoping for a mpg increase after it's all said and done but with my requests of more performance..well, we'll see. If I wanted something better on gas I would of left in a 4.3.

Posted

Just ordered mine yesterday. Autocal option. So far just a confirmation email from paypal. I assume they will just ship it out with instructions?

 

Ernie

Posted

Yes and when you get it you login to their site with your autocal serial number

 

 

Ryan

 

Sent from my iPhone using Tapatalk

Posted

Getting closer I think. Justin got around to looking at my datalogs so maybe by next week I can update the thread with results. Apparently he's not used to seeing the 87 octane piss gas we have here in Indiana. No SMOG though... :ughdance:

Posted

Hi Corey,Frank here, have the same truck as you 2011 5.3 lt 4x4.Just did the BB Auto Cal tune.Have not had time to drive mine more than once,We will keep in touch to see how our trucks work.

Archived

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

  • Latest Articles

  • Posts

    • You need a better code reader/scanner.  You are missing codes.  Did the dealer give you a copy of the SAVI scan from that visit?     If the fluid hasn't been changed, change it.  Shudder will likely go away.  
    • TLDR to my other post...   Hard. Pass.  Too many what ifs.     Are you set on a 3.0 Duramax?  Have you considered anything not GM just in case?  If you don't have to have a pickup, lots of other options for $27,000 out there.   
    • I see some red flags.   - No mention in the Carfax if the oil pump belt was changed.  LM2s had a 150,000mi service interval, and its got 164,245mi on it.  So right out the gate it needs about $3000-3500 for that to be done before driving it another 150,000mi.  Belt is at the rear of the engine.     - If something happens to the transmission valve body, the special coverage is expired by mileage.  That will likely be an out of pocket expense, with zero or near zero GM participation if something happened even though its in by time.   - 2020 LM2s seem to need timing chains after 80,000mi at some point.  They fixed this end of 2020/starting 2021 model year engines.  They will usually set a P0016 I think?  There is another $8000-10,000 if it needs a chain.  The main chain is at the back, secondary at the front so the pump belt would be done at the same time if it needed chains.     - Long oil change intervals.  7,000-8,000mi on average, probably close to 0% or perhaps to or beyond 0% on the OLM.  Lots of them not at the dealer which makes me wonder how much of the oil ran through that truck was the proper Dexos D rated 0w20 oil and not just gas engine 0w20, which is not the same at all.     - Long fuel filter changes, again likely taking the fuel filter life to 0% or more.  First one went 28,603, second was done 43,094 miles later at 71,697, from there another 46,452mi to 118,149mi, and then the most recent one 37,026mi later at 155,175mi.  So counting its original fuel filter, its had only 4 fuel filters on it.  No bueno IMO.         Good news?    - It has had only two warranty trips to the dealer.  The first free service (end of December 2020 on the Carfax), and the transmission reprogram recall (end of August 2025 on the Carfax).     - Truck did a LOT of moving, so that might explain the lack of emissions related repairs like bad NOX sensors, bad exhaust temp sensors, bad glow plugs, etc.         The "emissions system checked" could just be how something was flagged for Carfax.  GM dealers have to do SAVI reports for warranty repair orders so they scan the truck.  So its possible that is there for that?  
    • Thank you, @Z45!   NOTE - No all repair shop/Dealers reports to Carfax   That is my main concern.  The CARFAX looks way too clean for a 6 year old anything with 164,245 miles.  Even something known for reliability (like many Toyotas) typically has a lot more replaced, like a Nav screen, interior trim, shock/strut, or brake pads.  And surely the last set of tires (installed at ~58k miles) would be bald unless those were all highway miles.   I'm tempted to pay a local dealer to look up the VIN, but am not sure if that will be worthwhile.  Last time I did this, it was 100% useless, and I felt scammed - they noted the bumper was replaced years ago and that's it.  A 5-year old could spot the accident damage, even though nothing was on the CARFAX.   After giving the dealer a call, the truck may have a hard shift, but they have to verify with their mechanic if that's even a concern.  And I've test driven about a dozen of these now, many near Chicago, and half the trucks shift hard/odd at all throttle positions.  The ones with aftermarket lifts/larger tires shift terrible, and 3 stock trucks shifted so violently I thought the transmission valve body was going out.   At this point I'm conflicted, as I need a vehicle, and am coming up short locally.  Northern trucks in this price range tend to have either multiple owners, a lot of mods (lifts/oversized tires without re-gearing), and are generally in rougher shape.   If this truck showed up in your neighborhood for $27k and you had to purchase it sight-unseen, with the possibility of needing a 10L80 rebuild, torque converter, or rear end - would you do it?  I'm convinced most of the 10L80 trucks I test drove are broken, they can't all shift so bad, with massive flares/slipping/lurching and mis-matched downshifts like a teen driver learning stick.
    • From the spy shots, the front end does look like it's borrowing some styling cues from the Canyon. I'm more interested in the powertrain news than the screens though. If the 3.0 diesel survives into the next generation, that alone will keep a lot of current owners interested.  
  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...