Driveline Clunk from Diablo Predator
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Cadillac Escalade, EXT and ESV Forum - 2007-2014 Discussion, Driveline Clunk from Diablo Predator in Cadillac Escalade Forums; Hey all, I have had the diablosport predator tuner in for a while, started with the 87 octane tune then ...
  1. #1
    Ghost Deany is offline Cadillac Owners Enthusiast
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    Driveline Clunk from Diablo Predator

    Hey all, I have had the diablosport predator tuner in for a while, started with the 87 octane tune then the 93 diablo tune. I notice almost consistently that when letting off the gas to slow down for a red light and then it turns green, getting back on the gas gives a clunk seeming to be coming from the rear. It does this every time just about. At higher speeds not so much, just around 25-40 mph. I set it back to stock, and it doesnt make the clunk anymore but now has sluggish acceleration compared to the tune. Any ideas? truck is 07 has 96k on it. Also, does anyone know what Converter Calibration is under the parameters of the predator? thanks

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    soulsea's Avatar
    soulsea is offline Cadillac Owners Enthusiast
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    Re: Driveline Clunk from Diablo Predator

    It sounds like the canned tune is messing with the slip yoke.

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    Ghost Deany is offline Cadillac Owners Enthusiast
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    Re: Driveline Clunk from Diablo Predator

    I greased the slip yoke loaded it with synthetic grease, then even tried the "raquetball fix" put half a ball in there and had to fight to get the drive-shaft back on.

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    shore is offline Cadillac Owners Enthusiast
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    Re: Driveline Clunk from Diablo Predator

    did the diablo really help the acceleration?

    I feel mine is just lame.

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    soulsea is offline Cadillac Owners Enthusiast
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    Re: Driveline Clunk from Diablo Predator

    Quote Originally Posted by Ghost Deany View Post
    I greased the slip yoke loaded it with synthetic grease, then even tried the "raquetball fix" put half a ball in there and had to fight to get the drive-shaft back on.
    It sounds like you know about what you're talking about more than me. The only reason I mention it is because it was something that was reprogrammed as part of a custom tune I once had, and I had the tuner put it back to its stock setting because it was doing the same thing you're describing, and it was clunking when I would reaccelerate after the truck was coasting to around 35mph from higher speeds. (This was on a 2010 6.2 AWD Denali btw)

  7. #6
    Cadsrfun is offline Cadillac Owners Member
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    Re: Driveline Clunk from Diablo Predator

    Quote Originally Posted by Ghost Deany View Post
    Hey all, I have had the diablosport predator tuner in for a while, started with the 87 octane tune then the 93 diablo tune. I notice almost consistently that when letting off the gas to slow down for a red light and then it turns green, getting back on the gas gives a clunk seeming to be coming from the rear. It does this every time just about. At higher speeds not so much, just around 25-40 mph. I set it back to stock, and it doesnt make the clunk anymore but now has sluggish acceleration compared to the tune. Any ideas? truck is 07 has 96k on it. Also, does anyone know what Converter Calibration is under the parameters of the predator? thanks
    I have a 2010 ESV with the diablo 93 tune in it. I have never noticed this problem. I will try this the next time I am out with it and report back. Did it do the same thing with the 87 tune? You might want to put the Intune back on your PC and check for updates. Also, did you try emailing diablo sport and asking them? Good luck

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    Mr.SWAG is offline Cadillac Owners Member
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    Re: Driveline Clunk from Diablo Predator

    I have the same clunking ams is driving me nuts I love my Esky but I need to get this fixed.

  9. #8
    Ghost Deany is offline Cadillac Owners Enthusiast
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    Re: Driveline Clunk from Diablo Predator

    Quote Originally Posted by shore View Post
    did the diablo really help the acceleration?

    I feel mine is just lame.
    Definitley does. The throttle response is instant vs almost a 1 second delay without the tune.


    ---


    It does it for the 87 tune and the 93 tune. I have the actual predator and not the itune.

  10. #9
    Cadsrfun is offline Cadillac Owners Member
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    Re: Driveline Clunk from Diablo Predator

    Quote Originally Posted by Ghost Deany View Post
    Definitley does. The throttle response is instant vs almost a 1 second delay without the tune.


    ---


    It does it for the 87 tune and the 93 tune. I have the actual predator and not the itune.
    I agree that the response is nice now.
    Sorry I missed that you have the predecessor to the Intune. I did take it for a spin today and tried to replicate your problem but i couldn't. It would not clunk after slowing and maintaining 30 mph and nailing it.

  11. #10
    Ghost Deany is offline Cadillac Owners Enthusiast
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    Re: Driveline Clunk from Diablo Predator

    It wont do it if i ease onto the gas. I guess im used to the delayed throttle response from the stock tune.

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