Spacers: There may be spacers or bushings between the wiper motor and the firewall that are preventing it from being removed. Carefully inspect the area around the bolts to see if there are any additional components that need to be removed.
Adhesive: In some cases, the wiper motor may be sealed to the firewall using an adhesive sealant. If this is the case, you will need to carefully pry the motor away from the firewall while breaking the seal. Be sure to use a plastic pry tool to avoid damaging the paint or firewall.
Rust or Corrosion: Rust or corrosion can cause the wiper motor to become stuck to the firewall. If this is the case, you may need to use a penetrating oil to loosen the bolts and motor. Alternatively, you can use a heat gun to gently heat the area around the motor, which may help break down any rust or corrosion.
Damaged Bolts: If the bolts holding the wiper motor in place are damaged or stripped, they may not be able to be removed properly. In this case, you will need to drill out the bolts and replace them with new ones.
Firewall Support: Some vehicles have a support bracket or reinforcement behind the firewall that may be preventing the wiper motor from being removed. If this is the case, you may need to remove the support bracket or reinforcement to access the wiper motor.
