1996 J30- Torque Converter Lock up delay...

[steverinaz]

Greetings all;

Recently I've noticed a delay in my TC locking up at highway speeds. Are there some pre-requisites for this to occur; i.e. trans temp, etc? I believe the transmission was serviced at 60k and she just clicked over 74k. No lights to note on the dash.

TIA!

[yodawill2000]

Mine doesn't lock up until completely warmed up.

[steverinaz]

Thx Yoda!!!! I guess I really never noticed it. I'm going to dig around with the service manual pdf that I came across and validate this fact.

[Infinitiguy19]

The Q45 transmission doesn't shift into 4th (Over Drive) until the transmission is warmed up (Fluid reaches a certain point). So I assume it will also not lock the Torque Converter till a certain temperature as well.

Not to be rude but I let my car warm up to 177*F whenever I can.

[steverinaz]

And that's probably why I haven't noticed it. I usually do let her warm up for 10 mins b4 I go anywhere. I had a job in Tucson this past week and it would lock up after 5-7 miles on the freeway.

[yodawill2000]

same here