Wot A8 wont Shift most time only when slicks 17 on car

Discussion in 'SRT Hellcat TSB's' started by Rickymoto, Aug 23, 2015.

  1. Rickymoto

    Rickymoto Rookie

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    This week i went to the track 2 times on different days. My car have 1100 miles and completly stock, only 28x10-17 hossier slicks. My cars build date was on april 2015. First day first pass i do a burnout for 10 second in manual mode 1 gear, then move the shifter to auto mode, when green light i mash the pedal and the car hook great but never change from first gear, on this pass i only can see the 60' 1.60. On second pass do the same and try to change with paddle, do the same, but this time i shift to second gear about 5600 rpm no problem, but when try change to third not change. Go home mad with the car.
    Second day i do a shorter burnout hold on first gear then move to auto mode, stall at 1500 and mash pedal and when car aproach to 6100 rpm do a large pause then change to second and other gears, but not as fast as do normal on street tires when was on track mode. Then let cool down car for 45 minutes and try second pass same as first, but this time the car wont change. Let cool down 45 more minutes try third pass same as first and second, this time the stick in manual mode in first gear during burnout the car change to second (supose not happend) stall at 1800 then mash pedal and car shift to second but not change to third.
    When car have 70 mile the code P1611 was on dash but the other day the check engine light go, so i don't care about that, but now who knows.
     
  2. ramair111

    ramair111 Silver Member

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    Code P1611 is the super charger boost control valve. This may have something todo with your tranny not shifting. My SBC valve has been changed but I have a 6spd so I didn"t have any shift issues.
     
  3. Rickymoto

    Rickymoto Rookie

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    Someone that has run with 28x10x17 slicks have the same problem?
     
  4. Fast cat

    Fast cat BANNED Hellcat Car Club

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    I know someone who has them, Ross kirkendoll he also has put down one of the fastest times around 10.1 or so with no problems.
     
  5. Rickymoto

    Rickymoto Rookie

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    Ok, that let me know that my car problem are not the tire. First i think was the tires because with the factory tire the transmission upshift perfect at wot.
     
  6. DGatzby

    DGatzby Gold Member Hellcat Car Club HCC Charter Member Midwest Regional Pres.

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    Ricky, did you replace the wheels when you got home to your street set? That is what I would have done to see if it is the problem or not.
     
  7. cole3986

    cole3986 Gold Member

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    Never heard of this problem, keep us informed (please)
     
  8. Rickymoto

    Rickymoto Rookie

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    No i change tire next day and trany work fine.

    But last week when i came from the dragstip i try with slicks on street and do the same, the next day run with slicks on street and trany works fine.
    I call Dodge customer service and they tell me that i need to go to the Dealer and when be there call again.
     
  9. Hubbs

    Hubbs Silver Member

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    Good luck figuring this out! It sounds frustrating.

    Your description of a 1.6 sec 60' has me drooling. That's great and great to hear it's possible with this car. Others may not be as excited to read that, but I've so far mostly experienced such bad traction on the street (without slicks of course).
     
  10. Rickymoto

    Rickymoto Rookie

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    This are two of My time slip, and that was release the throttle on each gear, because if i let muy right feet wot, The trans wont shift.
     

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  11. Hubbs

    Hubbs Silver Member

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    Wonder why your MPH isn't showing up. :(

    Interesting that distance is measured in pies. Is that a 10" pie or a 12"? Cherry or apple? :p (Yes, I know that's Spanish for foot.)
     
  12. Rickymoto

    Rickymoto Rookie

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    Yes they hace problemas with the printer or programa bit un the screen the mph said 103.
     
  13. StellasHC

    StellasHC Platinum Member

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    Ill run my 28/17 hoosiers next week and report back...
     
  14. Rickymoto

    Rickymoto Rookie

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    Ok, ley me know.
     
  15. MyB5Cat

    MyB5Cat Rookie

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    Were you doing this in "Manual" mode? The A8 will not upshift on its own in manual mode. Once you are done with your burnout make sure the shifter is in the Automatic mode, then pull back the (-) left paddle shifter, ensure that on the dash it shows you in 1st gear. Leave hard, mash it to the floor, and the transmission will shift itself at the 6200 redline! This works every time for me, on the street with street tires or at the track with my 17" drag radials.
     

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