Occasionally my 1990 sedan's auto transmission doesn't go into overdrive. So I bought IPD's OD solenoid bypass kit in the hope that it will solve the problem. The transmission also tends to shift a little late, so I thought that while I'm installing the OD bypass kit I'd lube and adjust the kickdown cable using the instructions in the Bentley manual. However, the IPD kit instructions suggest that this adjustment method doesn't work well. I'm not sure whether to just slacken off the cable a little (IPDs suggestion), or whether to measure the cable at full throttle according to the Bentley manual. Any wisdom that you can pass on would be appreciated. The car has 130K miles on it, but was neglected for about 50K of those judging by the service history, receipts and attitude of the previous owner. The trans fluid is fairly fresh, synthetic oil, changed 3 times to get as much as the old stuff out as possible.

David