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  1. Dropped HYbro

    Has anyone converted back to straight gas

    morning yall...quick update...I took a video of the noise and am trying to upload now...remember sound is 100 times worse in person and shakes the whole truck violently....could hear clacking sounds with the truck up in the rear and the tires trying to spin manually...lets see if I can get this...
  2. Dropped HYbro

    Has anyone converted back to straight gas

    just curious...any idea what a trans rebuild or remanufactured trans installed runs...ballpark?? or have you heard any stories of hybrid rebuilds and costs?
  3. Dropped HYbro

    Has anyone converted back to straight gas

    It's so hard to tell because the grinding comes with violent shaking...though it is below the truck to the rear of the driver seat...shifts into drive with no hesitation...you take your foot off that brake...all hell grinds and shakes violently...it will not move forward at all....almost feels...
  4. Dropped HYbro

    Has anyone converted back to straight gas

    that would be ideal....would love to change out the 3.08 for 3.73....I run much larger wheels and tires...3.73's are a great freeway gear...just don't know if that will mess with the electronics as far recharging the hybrid battery which happens when your degenerative breaking or slowing...
  5. Dropped HYbro

    Has anyone converted back to straight gas

    sound advice...I don't feel like being victimized because I want my truck fixed properly. thanks again....will keep posting updates as this fiasco unfolds.
  6. Dropped HYbro

    Has anyone converted back to straight gas

    do you know if the dealership technicians refer to their scanners as "Tech2"'s...just curious and want to be informed...I have an appointment to have my truck towed to our dealership on Saturday...If I'm going to pay for a diagnostic...I want them to use every resource they have available...not...
  7. Dropped HYbro

    Has anyone converted back to straight gas

    any sounds from under the truck...have you tried M1-4?
  8. Dropped HYbro

    Has anyone converted back to straight gas

    starts right up....shift into D...everythings fine....take my foot off the brake to start and move...literally the whole truck shakes like its going to fall apart....and the sound is metal teeth grinding against a metal teeth....this IS the worst sound ive ever heard from a vehicle...and Ive...
  9. Dropped HYbro

    Has anyone converted back to straight gas

    the truck starts just fine...even idles...motor looks and sounds great....shift into drive and take my foot off the brake and I get the same results loud grinding....like hardened steel chewing up semi hardened steel....worst sound Ive heard from a vehicle ever....and Ive had many with...
  10. Dropped HYbro

    Has anyone converted back to straight gas

    bright red...no sparkly shavings or glitter...never went over 165 degrees...and shifted like a dream...no towing...no issues whatso ever...no burnt smell...no slippage....literally heard clacking noise coming from under truck....my son walked beside it couldn't pin point where it was coming...
  11. Dropped HYbro

    Has anyone converted back to straight gas

    this is a 2008 gmc Yukon hybrid...RWD-2WD....Though it seems I still have reverse....just afraid to move it...so I don't do anymore damage.
  12. Dropped HYbro

    Has anyone converted back to straight gas

    Would broken gears/spline/shafts allow it to move in neutral...but NOT allow it to move an inch in drive?
  13. Dropped HYbro

    Has anyone converted back to straight gas

    these hybrids are really kool...loved the way my truck drove before this disaster.....gotta get it to the dealership.
  14. Dropped HYbro

    Has anyone converted back to straight gas

    Ron..you seem very knowledgeable about our trucks...wanted to ask what would be the best way to tell if I seized up the rear end in my 2008 gmc Yukon hybrid..?....I hear a terrible noise when I go to put it in drive to move forward...sounds like teeth or gears literally breaking off or grinding...
  15. Dropped HYbro

    Has anyone converted back to straight gas

    ......sometimes I wonder how it feels to be a master GMC/CHEVY technician...I think I missed my calling in life...LOL!
  16. Dropped HYbro

    Has anyone converted back to straight gas

    good information in = good information out.
  17. Dropped HYbro

    Has anyone converted back to straight gas

    good morning...YES please more information...I am kinda of in the same boat right now...truck is going to the dealer on Saturday morning until then ...just sitting(depressing)....my truck starts and sounds fine!....even shifted perfect until this incident.....now I put into drive and literally...
  18. Dropped HYbro

    HELP-Check Engine Light Flashed 3 Times~~

    wise words steven...ill update everything after I get it down to the dealer...if I don't pass out from repair cost shock but thanks for the heads up....im going to try and get the longest warranty with the repairs so it doesn't sting as much...and yes inquire within reason of any other...
  19. Dropped HYbro

    HELP-Check Engine Light Flashed 3 Times~~

    good morning...engine purrs like a kitten...in park...I can give it gas and hear everything sounds right...literally not anything noticeable..not even the usual "chevy tick" of lifters....I have reverse...no noticeable sounds although I only checked a few inches in reverse...trying not to do...
  20. Dropped HYbro

    HELP-Check Engine Light Flashed 3 Times~~

    I want to say thanks to everybody for showing concern....I know I'm being a big baby about my truck...I just really like this hybrid that much....so the basics...the engine starts up just fine...sounds smooth...no ticking sounds...like I said previously...plenty of power even shifted like a...
  21. Dropped HYbro

    HELP-Check Engine Light Flashed 3 Times~~

    Heres some pics when I was doing my LED'S last weekend...uggh! ] ] [
  22. Dropped HYbro

    HELP-Check Engine Light Flashed 3 Times~~

    its a red top optima...diagnostics on dash read 14-15V....battery is a year old according to the receipts from the guy I purchased the truck from...I did just reinstall it after I upgraded the headlights this weekend to LED...had to remove the air raid system for one side...then the battery and...
  23. Dropped HYbro

    HELP-Check Engine Light Flashed 3 Times~~

    I would say right behind the driver seat...loud...I think im going to take a video of the sound today...still prepping to tow to the dealership...removing wheels etc, from past experiences with dealerships theyre good at what they do...but love to blame it on aftermarket accessories such as...
  24. Dropped HYbro

    HELP-Check Engine Light Flashed 3 Times~~

    was doing 85 on the freeway for two hours straight...no issues..trans never went above 165 degrees...I always drive in D...but after the first sounds of clanking began it all happened within a mile I put it in drive and start to give gas...the worst sound Ive ever heard from a...
  25. Dropped HYbro

    HELP-Check Engine Light Flashed 3 Times~~

    took it to get the scan at autozone...no stored codes...no current codes...however...went to take her out for my 4 hour round trip to see the kids...after 2 hours in..stopped for a bite came out to continue....noticed a clanking sound..thought it was suspension...maybe a cracked rotor...or a bad...

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