Ford Mustang convertible top inoperable for down operation.

Description: The convertible top of a 2007 Mustang is experiencing issues where it will not fully lower. It begins to open but stops approximately 6 inches from the fully down position. While the motor engages when the down switch is pressed, it indicates a mechanical issue. All fuses have been checked and are functioning correctly. Accessing the top operating mechanism requires the removal of the rear seat. The bottom of the seat is secured with button clips that need to be popped off, and the back seat is held in place with two 10mm bolts at the bottom sides. Once the bolts are removed, the seat can be lifted straight up due to tabs that latch into the seat support. There are buttons located under the front edge of the seat that must be pushed towards the rear while lifting to facilitate removal. The motor has a two-tone appearance, with one end silver and the other resembling brass. A black rubber plug in the silver section serves as the hydraulic reservoir, which can be pried up to access and refill the reservoir, ensuring it is filled to about half an inch below the top. Troubleshooting the issue involves understanding the operation of the system, including the relays associated with raising and lowering the top, and checking for power and ground at the relays when the switch is engaged. If the pump/motor operates but the cylinders do not move, the pump/motor may need replacement. The convertible top system requires the parking brake to be engaged and the ignition switch in the RUN position for operation.

The convertible top mechanism in a 2007 Mustang is a hydraulic system designed for efficient operation of the convertible roof. The system consists of a hydraulic pump, two lift cylinders, and hydraulic lines that connect these components. The operation begins with the engagement of the parking brake and the ignition switch set to the RUN position, which allows the system to function. The convertible top switch sends power to the appropriate relay, which then controls the hydraulic pump.

The troubleshooting process for the convertible top mechanism starts with the removal of the rear seat to gain access to the hydraulic components. The rear seat removal involves popping off button clips and unscrewing bolts, making it essential to follow the correct procedure to avoid damage. Once the seat is removed, the hydraulic pump and relays can be accessed for inspection.

To diagnose the issue, a test light should be used to check for power and ground at the relays while operating the top switch. If power is lost, tracing the wiring to identify the source of the issue is necessary. The relays play a crucial role, as one is dedicated to raising the top and the other to lowering it. If both relays are functioning correctly, further investigation into the hydraulic fluid level and the linkage operation is warranted. If the pump operates but the cylinders do not respond, the pump or motor may require replacement.

The hydraulic system can be removed as a complete assembly, allowing for individual component repairs if necessary. Understanding the operation and troubleshooting steps is vital for effectively diagnosing and resolving issues with the convertible top mechanism. Proper maintenance and timely repairs can ensure the longevity and functionality of the convertible top system.My 2007 Mustang convert. top won`t go down. Started down, got to about 6" open then stopped. It will engage to go back up, but won`t go down. Have checked all fuses, OK. When I press the down switch I can hear the top motor running. It indicates a mechanical problem but what do you think and how do I get to it to check for broken or disengaged linkage It appears the top operating mechanism can only be reached by removing the rear seat. How do I do that Hi, I`m a moderator for this topic and I wonder whether you`re still waiting for an answer. If you are, please let me know and I will do my best to find a Professional to assist you right away.

If not, feel free to let me know and I will cancel this question for you. Thank you! Sometimes, finding the right Professional can take a little longer than expected and we thank you greatly for your understanding. We`ll be in touch again shortly The bottom of the seat has the usual button clips, pop those and remove the bottom seat, the back seat has two 10mm bolts at the bottom sides, pull then lift the seat straight up, it has two tabs that latch into the seat support.

If you feel under the front edge of the seat, there are buttons one on each side, push them in towards the rear of the car, and lift up at the same time, that should get you moving. the motor is two-toned - one end is silver and the other a brass-like color. There is a black rubber "plug" in the end of the silver part, which is the hydraulic reservoir. Pry that up a little to be able to place (I used) needle nose pliers under the lip of the plug and pry it up until it comes out.

(the plug looks really oversized and you`ll wonder how you`re going to be able to get that back in. I put a small slotted screwdriver into the hole in the plug and was able to work the plug back into the hole. ) Fill the reservoir up to about a half inch below the top. Then replace the plug back into the hole. You`ve given me plenty of information to allow seat removal but precious little on how to troubleshoot my problem.

I can search the internet as well. I thought I would get a personally knowledgable technician. How can I access the cylinders that operate the top Is that necessary to troubleshoot Ok, got the back seat off First you need to understand how it operates. There are two relays, one to raise and one to lower. Both are located on the pump. Get a test light and check for power & grounds at relays when you enage the switch for raising or lowering.

If you are losing power or ground you must trace wiring back to where power or ground is restored. This could be the raise lower switch but you will need to find out. If you have power & ground to the appropriate relay but lose function, check fluid level and linkage operation. If pump/motor runs in both raise & lower position, but cylinders fail to move replace pump/motor. Let me know what you find. The convertible top will only operate with the parking brake engaged and the ignition switch in the RUN position.

When the parking brake is engaged, the raise and lower relay coils are grounded through the parking brake switch. The Generic Electronic Module (GEM) also lights up the "brake" indicator on the dash. The convertible top switch supplies power to the raise or lower relay coil when raise or lower is selected.

This power energizes the coil causing the relay contacts to close which supplies battery power to the convertible top motor/pump assembly. The normal state of the relay is connected to ground. When the raise or lower relay is operating, the other relay remains in its normal state supplying the motor/pump ground.

The convertible top hydraulic system is comprised of a hydraulic pump, two lift cylinders, and the connecting hydraulic lines. The hydraulic system is removed as an assembly, but the components may be repaired separately. First, you need to understand why the car does what it does. It basically works the same wa