WhiteKnightZ28

iTrader: (5)

Ok, I dont want to name any names here because both the TC manufaucture and the tunner are both sponsers here...

So I get my 3600-TC, put it in myself and right from the start it wont lock up. I figure its a simple tunning problem, so I go to my tunner to get a full dyno-tune.

They cant get it to lock up, and whats worse, the converter is slipping up top... badly (my dyno curve actualy does loop-de-loops) and it only put down 330hp (should be well over 400hp)



So what I want to know is: Was the conveter defective from the factory, or did I do something wrong when I installed it, or did my tunner do something wrong?

8a8mfh

iTrader: (3)

You might have damaged the input shaft o-ring for the TCC lock up.
What did the tuner tune? Can't he put the original tune in for a before and after run?

Rebelord

iTrader: (2)

pull the TC and send it to the manufacture stateing your problem and talk to them. They will probally be able to help you out best.

Ski

jimmyblue

iTrader: (11)

Before you go too crazy with the wrench, go into all
of the misfire tables (Engine Diagnostics > Misfires in
HPTuners) and set them all up to 32767 everywhere
they aren't already. Then go drive it and see about
the lockup and the slippage. Small diameter converters
don't damp out the crank jerk as heavily and make the
misfire detection more sensitive in effect.

If it still doesn't lock up then you can spill the ATF.

JL ws-6

iTrader: (50)

I'd first check the tune with the above possible problems, this is a quick easy thing to do. If they are all set like stated above, then call the converter guys, talk to them and see what they think could be suspect. go thru the motions with them, and if none of the possible problems that they have told you to look into are the cause, take the thing back out and try to send it back to have them look at it.


Did you have a converter in the car before or stock?

WhiteKnightZ28

iTrader: (5)

The car had the stock conveter in it when I bought it.

So there are a few ideas as to why the converter is not locking up (which I will look into). Any clue as to why its slipping so baddly?

JL ws-6

iTrader: (50)

Not a clue on that one. A looser converter will have some slip.. but what you are describing is something that's past normal.

WhiteKnightZ28

iTrader: (5)

Yeah thats why I think that the conveter was messed up from the factory, but I wanted to ask around to see if there was something else that might be causing the problem.

jimmyblue

iTrader: (11)

Not sure how badly is "badly" but I would expect a
converter of that sort to be slipping maybe 600RPM
at the point of upshift and even more, in the midband.
Do you have any means of logging the action? If not
you have little way of telling normal-but-different from
just wrong (other than past experience with high stall
speed converters).

Be sure you have a full pan of fluid, BTW; when I got
my car back from the last TC install it drove like ****
and after scanning the hell out of it with squirrely
results I checked the fluid and found it many quarts
short. Simple things first.