The torque converter lock up won't activate until the coolant is at 82 degrees C. Perhaps this is what you were thinking of.Quote:
Originally Posted by Disco Muppet
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The torque converter lock up won't activate until the coolant is at 82 degrees C. Perhaps this is what you were thinking of.Quote:
Originally Posted by Disco Muppet
Nope, but OP was talking about 3rd not top gear which is what I was thinking of. My auto doesn't lock up until about 80km in top.
Coolant or ATF?
Going back to the original post. I also think you should take it back to the auto specialist and explain your issue. Perhaps even take him for a drive, or let him take you for one. It could be as simple as the lockup switch was not connected correctly or something simple like that.
Also, you mentioned you have a low stall to maximize your bottom end torque to tow the caravan, but you didn't mention if you have a chip or tune. The std tune does not cope with the larger torque converter.
The TC is essentially like a turbo. The larger it is the longer it takes to spool, but it can be counter acted with a tune to give max performance as stated previously by Disco Muppet.
If you were convinced by the Auto Specialist to upgrade your TC without a performance tune, i'd argue that you are within your rights to return it for a standard TC at no charge or at least tune at no charge.
I'd suggest a std TC as Roverlord quite rightly put it, when you start changing things it can be Pandora's box, even Disco Muppet mentioned the higher EGT's then you need a EGT gauge ect. I also know from experience.
I hope that helps.