Brake push rod will not depress

Welcome to 2CarPros.

I attached two pictures. Is the highlighted part in picture 1 what you are referring to? If it is, look at picture 2 and let me know if that is how you connected it.

Here are the directions specific to your vehicle for removal and replacement of the brake pedal. See if you did what they explain. The remaining pictures correlate with these directions.

2009 Nissan-Datsun Sentra L4-2.5L (QR25DE)
Removal and Installation
Vehicle Brakes and Traction Control Brake Pedal Assy Service and Repair Removal and
REMOVAL AND INSTALLATION
BRAKE PEDAL

Removal and Installation

COMPONENTS

pic 3

NOTE:
The clevis pin must be installed from the right side as shown above.

REMOVAL
1. Disconnect accelerator pedal position sensor harness connector.
2. Remove stop lamp switch and ASCD switch (if equipped) from brake pedal assembly.

Pic 4

3. Remove snap pin and clevis pin from clevis of brake booster.
4. Remove nuts from brake pedal bracket, and remove brake pedal assembly.
5. Remove accelerator pedal from brake pedal assembly.

INSPECTION AFTER REMOVAL
- Check brake pedal for bend, damage, and cracks on the welded parts.
- Replace brake pedal assembly if any non-standard condition is detected.

Pic 5

- Check clevis pin and plastic stopper for damage and deformation.
Replace clevis pin as necessary.

INSTALLATION
Installation is in the reverse order of the removal.
- After installing brake pedal assembly, adjust brake pedal. Refer to See: Brake Pedal Assy > Initial Inspection and Diagnostic Overview > Inspection and Adjustment.
- After installing accelerator pedal, check accelerator pedal for proper operation.

NOTE:
The clevis pin must be installed from the right side.

Let me know.

Joe

You are very welcome. Let us know if you need anything in the future. If you want to throw in questions related to the AC, just start a new thread. We are trying to keep the threads limited to one topic so it is helpful for others.

Take care,
Joe