I have no problem sharing what I know. That is how we all learn. I will check out the artical on Alpar. I have heard differing statements on the lockup function.
Just an FYI, my trans is a 88 Diplomat 318 small trans (not sure if 904 or 998) with lockup. It is the hydraulic control, not electric. There is no electric connection on the trans for that. Been awhile since I looked under the car, but I think there is a wire in the area that should be for lockup connection (but not sure). This is how the car came from the factory, as I purchased new in 1988, and the trans is original. I am getting a "shudder" at about 45 MPH (at lock up) if I am in the throttle, a little. Also if I get in the throttle hard while in lockup, I get a shudder. I am trying to determine, if the problem might be just the converter (spring apply- pressure release) or possibly the trans (pressure apply- spring release) due to low fluid pressure. Pretty sure the converter clutch is going to need replacement either way, but just a one day job, or trans work also, which will take longer.
PS: It is definately a converter problem, not engine related.
PPS:Was lean burn, converted to HEI several years ago.
