Thread: 06 trans slips at 70mph or above

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  1. #1 06 trans slips at 70mph or above 
    walk76z
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    Default 01-14-2012
    I have a 06 Grand Prix and the trans will slip at 70mph and above should i try to change fluid or what??
    Thanks Brian
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  2. #2 Re: 06 trans slips at 70mph or above 
    Explicit_Spade
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    Default 01-14-2012
    Is the fluid low or miscolored?
    Quote Originally Posted by W-Body Store
    Remember, GM engineers didn't take into account your need for speed.
    Daily Driver: 06 Grand Prix GT / 9.4:1 CR / IS3 Heads / Ported Gen V / ZZP Headers / HPT Pro / Pulleys: 4.25, 3.8, 3.5, 3.4, 3.2, 3.0, 2.9, 2.7
    Projects: 86 Monte Carlo SS / 98 Sonoma / 74 Honda CB750
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  3. #3 Re: 06 trans slips at 70mph or above 
    walk76z
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    Default 01-14-2012
    Looks fine not low
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  4. #4 Re: 06 trans slips at 70mph or above 
    Explicit_Spade
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    Default 01-14-2012
    A fluid and filter change (don't flush) might be good for it, but I don't think it's going to solve your issue.

    It sounds like you may have a problem with line pressure or the torque converter maybe?
    Quote Originally Posted by W-Body Store
    Remember, GM engineers didn't take into account your need for speed.
    Daily Driver: 06 Grand Prix GT / 9.4:1 CR / IS3 Heads / Ported Gen V / ZZP Headers / HPT Pro / Pulleys: 4.25, 3.8, 3.5, 3.4, 3.2, 3.0, 2.9, 2.7
    Projects: 86 Monte Carlo SS / 98 Sonoma / 74 Honda CB750
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  5. #5 Re: 06 trans slips at 70mph or above 
    walk76z
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    Default 01-14-2012
    I dont know why it only slips at 70mph and above
    Thinking it might be electrial?
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  6. #6 Re: 06 trans slips at 70mph or above 
    matt5112
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    Default 01-14-2012
    how do you know its slipping?
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  7. #7 Re: 06 trans slips at 70mph or above 
    walk76z
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    Default 01-14-2012
    the tack jumps up while the power goes down
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  8. #8 Re: 06 trans slips at 70mph or above 
    Jakescoots
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    Default 01-15-2012
    Is it like either of these?
    Grand Prix Tach - YouTube
    rpm and ltft - YouTube
    Does removing the spare count as weight reduction?
    Quote Originally Posted by KeithGTP03 View Post
    Badges on a car are just advertisements....Everyone already knows what it is. And if they dont, its a mystery. People like mysteries.
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  9. #9 Re: 06 trans slips at 70mph or above 
    dsmuts
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    Default 01-15-2012
    Torque converter problems?
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
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  10. #10 Re: 06 trans slips at 70mph or above 
    Explicit_Spade
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    Default 01-15-2012
    From the description it sounds like the converter isn't locking up.
    Quote Originally Posted by W-Body Store
    Remember, GM engineers didn't take into account your need for speed.
    Daily Driver: 06 Grand Prix GT / 9.4:1 CR / IS3 Heads / Ported Gen V / ZZP Headers / HPT Pro / Pulleys: 4.25, 3.8, 3.5, 3.4, 3.2, 3.0, 2.9, 2.7
    Projects: 86 Monte Carlo SS / 98 Sonoma / 74 Honda CB750
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  11. #11 Re: 06 trans slips at 70mph or above 
    walk76z
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    Default 01-15-2012
    its like the first one
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  12. #12 Re: 06 trans slips at 70mph or above 
    Jakescoots
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    Default 01-15-2012
    Your converter isn't locking up all the time then
    Does removing the spare count as weight reduction?
    Quote Originally Posted by KeithGTP03 View Post
    Badges on a car are just advertisements....Everyone already knows what it is. And if they dont, its a mystery. People like mysteries.
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  13. #13 Re: 06 trans slips at 70mph or above 
    walk76z
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    Default 01-15-2012
    is there any fixing or should i change the converter
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  14. #14 Re: 06 trans slips at 70mph or above 
    BillBoost37
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    Default 01-17-2012
    I'd ensure everything igniton wise is good first. Check tps and maf.

    All that will contribute to TCC lockup kicking in and out etc. High load, low rpm at 70 on our setup. Which means ignition is important.
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
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