CV Joint Boot Check

Overview

This procedure helps you inspect the CV joint boots on your Porsche 944 (16v engine variants) to ensure they’re in good condition. These boots protect the constant velocity (CV) joints, which are critical for transferring power to the rear wheels. Checking them regularly—every 15,000 miles (24,140 km)—can prevent damage from leaks or cracks, saving you from costly repairs down the road.

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Tools Required

• Jack stands
• Floor jack

Step-by-Step Procedure

Step 1: Lift the Vehicle

1. Use a floor jack to carefully raise the rear of your Porsche 944.
2. Secure the vehicle on jack stands, ensuring it’s stable and level before proceeding.

Step 2: Inspect the CV Joint Boots

3. Look closely at the CV joint boots on both rear axles for any visible cracks.
4. Gently squeeze each boot to check for grease leaking out, which could indicate a tear or failure.
5. Assess the condition: If you see deep cracks (more than 1 mm or 0.04 inches) or any grease leakage, the boot needs replacing. For replacement, start with this procedure —CV Joint Boot Removal—.

Post Procedure Checklist

• Confirm there are no deep cracks (more than 1 mm or 0.04 inches) in the boots.
• Check that no grease is leaking from the boots.
• Ensure the vehicle is lowered safely back to the ground after inspection.

Sources

• Clark’s Garage
• Pelican Parts
• Porsche 944 Workshop Manual, Volume 1
• Youtube