I’m writing in on behalf of my Dad who owns a 96 Ford Falcon I6. For the past year his Automatic gear box has been playing up and he wondered if anyone else has experienced this problem.
Symptoms: When placing Shifter into Drive position take 5 seconds before first gear will engage. Has trouble determining between first and second gear usually ends up revving hard in neutral before selecting the gear. At about 40km and pressing the accelerator to kick down from 2nd to 1st also holds in neutral for 5 seconds revving hard before selecting gear?
He has had the Computer Chip replaced on the side of the Transmission and didn’t fix it and now the Mechanic is suggesting it might be a solenoid in the gear box. Before making the costly decision to have more parts replaced thought we would ask on here for some help. Any help appreciated?

may sound obvious but has he checked the tranny oil level? has the oil been changed?

yep s5