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Torque converter reluctently letting go 80km

Discussion in 'VY Holden Commodore (2002 - 2004)' started by ant797, Jan 2, 2020.

  1. ant797

    ant797 Active Member

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    As headline sais at sitting on 80km or 100 when i accelerate out of it sometimes its very slow to accelerate and the car shudders if i put my foot down its fine kick down comes in and im off its only slowly accelerating out of it thers a shudder and takes a while before it gets out of lock it seems..only started doing this after replacing the tcc pwm solenoid wich fixed the engine light issue drives fine otherwise
     
  2. ant797

    ant797 Active Member

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  3. immortality

    immortality Home of the smoky breakfast Bacon! Staff Member

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    Take it back to whom ever changed the solenoid as it seems it's not working correctly.
     
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  4. losh1971

    losh1971 Well-Known Member

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    IIRC the OP fitted the part himself. Might be a problem with the chosen part, eBay special I believe and not AC Delco AFAIK.
     
  5. ant797

    ant797 Active Member

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    yes from ebay do you know where you can get one from ac delco
     
  6. ant797

    ant797 Active Member

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    There is a tutorial on how to bipass delete the tcc pwm solenoid by grinding a ridge in it and removing one o ring might conider trying it have a feeling the ac delco one is the one everyone quotes 500 bucks for
     
  7. losh1971

    losh1971 Well-Known Member

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    No idea on the price of a AC Delco TCC solenoid, but IIRC my two Delco shifts solenoids were under 50 bucks for the pair.
     
  8. ant797

    ant797 Active Member

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    Is there a chance it might wear in
     
  9. ant797

    ant797 Active Member

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    It is getting better maybe the spring in is a bit fresh or something
     
  10. ant797

    ant797 Active Member

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    Thinking tps might have something to do with it fitted a 17 buck one australian online auto parts from back when they were selling cheap chinese **** couldnt find the one i took off was nothing wrong with it was just stabbing in the dark when i changed it anyway i i orded an afi one
     
  11. ant797

    ant797 Active Member

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    Does the tps control the torque converter clutch i did change the tps earlier on hoping it would get rid of check engine light replaced it with a cheap one only drove it around localy seemed to work ok cant find the old one only found it does after getting it licenced and driving on highway
     
  12. immortality

    immortality Home of the smoky breakfast Bacon! Staff Member

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    yes. TCC lock/unlock is governed by road speed Vs Throttle position.
     
  13. ant797

    ant797 Active Member

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    Thanks see if that sorts it i rang trans guy i bought tcc solenoid from he sais it is an acdelco solenoid and im proberly only noticing it now becuase the it wasnt locking up before and that it most likely has gummed up or glazed and that theres stuff called instant shudder fix thats specificly for torque converters you add to oil to help lube and remove glaze on the torque components hopefuly replacing the tps works becuase does seem to be a dead spot in acceleration but heard torque lock can do that anyway this instant shudder fix is the next step after tps
     
  14. losh1971

    losh1971 Well-Known Member

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    Valve body problems are common and affect TC lock up. They fix the issue by reaming the VB and fitting a bigger valve and heavier spring.
     
  15. immortality

    immortality Home of the smoky breakfast Bacon! Staff Member

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    Yep. The problem is the PWM solenoid used for TCC lockup. Because it's pulsing it wears out the bore in the valve body. There are a number of fixes if that is the case although generally if that bore is worn than the TCC doesn't lock rather than not unlock as the wear creates a leak past the solenoid.
     
  16. ant797

    ant797 Active Member

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    Theres some improvement using instant shudder fix it accelerates out of it quicker and doesnt shake as long aparently might get better the more kms i do looking at videos ..guess its a new torque converter if it doesnt work
     
  17. ant797

    ant797 Active Member

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    Looks like its a new torque converter
     
  18. ant797

    ant797 Active Member

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    turned out to be a miss would you believe made me belive it was torque converter becuase that what i was dealing with at the time and it only missed when torque converter was engaged must of been a load thing had to get worse before i reconised it ..now i got two tubes of instant shudder fix in there hope it doesnt fck anything up
     

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