Quote:
Originally Posted by RH77
On nearly all brand new cars I've tested, the torque converter will engage when the coolant temp is literally 10F and sometimes below! What gives? I have to have 190F+ and IATs in the 90's for that to happen. Argh.  |
I had a '90 Pontiac Subird, where-in the controller for the TC went bad, and once it locked up, it would not unlock until the car cooled down. I ended up cutting the wire to the controller and just using a switch to operate the TC manually. May be worth it to consider that if your TC is a simple one that operates from 12V.
As for my grill block, I have my radiator 100% blocked. Doesn't cause an issue until the temps rise above 40F. But then my engine is out in the wind, getting air cooled. I don't worry about it going over temp, my gauge has been tested to being fairly accurate, and it hits the red at about 260F. Last winter I was forced into using the highway for a short period during a not-so-cold day, and I was in the red for the last mile before getting off to surface streets. Engine is still running fine, though. So I don't worry if I get between normal and the red, as it usually starts warming my intake at that point.