Thank you so much for now.MacBook Pro 13.3' Retina, MacBook Air 13' Retina, MacBook Air 13.3'(2020, M1): 2560x1600 Dual monitor: My car is using ATF fluid and not brake, I would prefer keep it as long as a brake fluid leak would be terrible for the paint. I will make more cycles to be sure to remove all the air and I will also check the deck solenoid by giving it power as you suggested. Before that my car works fine despite the oil leak. My top problem started after the change of the deck lid cylinders. Squarebirds were designed to use brake fluid and not transmission fluid.Yes, you are right. I would check them using a power source to see if they make an audible clunking sound. The other possibility is that one of the solenoids is not closing which is allowing fluid to go back into the pump when the top starts to retract. After opening your system to replace the cylinders it may take 10-15 cycles or more to totally remove all the air. If so the odds that something broke or started malfunctioning at the same time is unlikely which would again lead me to believe that there is still air in your system. Did the trunk lid stay open before you changed them even though they were leaking. It's a pain but that's the only way to do it correctly. Make sure you cycle the lid and top a number of times and then open the pump to let the air out and check the fluid level each time with the top UP. If it was an electrical issue the lid would continue to close. The fact that you say it stops at about 20 degrees and that you changed the cylinders leads me to believe this is the cause. I've seen a low fluid level or air in the system cause the deck cylinders to lose pressure and start to come down like you mentioned.

Before you do anything else though make sure you have enough fluid in your pump and all the air is out. Troubleshooting these systems without having some basic knowledge of electronics is nearly impossible. It could also be one of the solenoids or a relay causing your problem. Replacing parts to isolate the problem can get rather expensive. Usually the contacts get dirty or the springs break. Most of the switches can be taken apart and repaired. Try Carl Heller (partsetal) or Bob's Bird House. You'll have to contact one of the parts vendors who specialize in used parts. If it's the larger of the two switches the tray retract switch it's not available.

Old thunderbird convertible