Tools You'll Need:
* Socket set: Various sizes, including a deep well socket to reach the starter bolts. You'll likely need a 13mm and 15mm, but check your car's service manual to be sure.
* Wrench set: May be needed for additional bolts or to assist with socket work.
* Ratchet: A good quality ratchet will make the job much easier.
* Extensions: Socket extensions are essential for reaching the starter bolts.
* Breaker bar (optional but recommended): Starter bolts can be stubborn.
* Torque wrench (recommended): To properly tighten the bolts after installation.
* Jack and jack stands: Safely supporting the car is crucial.
* Wheel chocks: To prevent the car from rolling.
* Penetrating oil (like PB Blaster): Helps loosen stubborn bolts.
* Wire brush: To clean bolt threads.
* New starter: Make sure you get the correct replacement starter for your 1990 Mustang GT.
* Gloves: To protect your hands.
* Shop rags: To clean up any oil or debris.
* Safety glasses: To protect your eyes.
Procedure:
1. Safety First: Disconnect the negative battery cable. Support the car securely on jack stands. Apply wheel chocks.
2. Access the Starter: The starter is located on the passenger side of the engine, typically towards the bottom. You'll need to remove some components to access it easily. This may include:
* Remove the passenger-side front tire: This will give you more room to work.
* Remove the heat shield: There's often a heat shield partially covering the starter. This will need to be removed, usually with several bolts.
* Possibly remove the exhaust manifold heat shield (check service manual): This may or may not be necessary depending on access.
3. Disconnect the Starter Wiring: There are typically two large cables connected to the starter. Use a wrench to loosen the nut holding each cable to the starter stud. Carefully remove the cables and label them (take pictures if helpful) so you know where they go during reinstallation.
4. Remove the Starter Bolts: You'll need to use your socket, ratchet, and extensions to reach the starter bolts. Apply penetrating oil to the bolts beforehand if they seem stuck. Use a breaker bar if necessary to loosen them. There are usually two bolts holding the starter in place. Remove the bolts and carefully lower the starter out of the engine bay.
5. Install the New Starter: Before installing the new starter, clean the mating surfaces on the engine block and the starter. Carefully position the new starter and install the bolts, tightening them securely but not over-tightening. Refer to your repair manual for recommended torque specs.
6. Reconnect the Wiring: Reconnect the starter cables, ensuring they're securely tightened.
7. Reassemble: Reinstall the heat shield and any other components you removed. Put the tire back on.
8. Reconnect the Battery: Connect the negative battery terminal.
9. Test the Starter: Try starting the car. If it doesn't start, double-check all connections and wiring.
Important Notes:
* Consult a Repair Manual: A repair manual specific to your 1990 Mustang GT is highly recommended. It will provide detailed instructions, diagrams, and torque specifications. This guide is for general information only.
* Take Pictures: Taking pictures as you disassemble the components will be helpful during reassembly.
* Difficulty: This is not a beginner's job. If you lack experience working on cars, it's advisable to seek professional help. Incorrect installation can lead to damage to your vehicle or personal injury.
Remember safety first! If you're unsure about any step, consult a mechanic.
