1997 Porsche 911 Problems

RepairPal has identified the most common problems with the 1997 Porsche 911 as reported by actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.

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Known Problems

Check Engine Light illumination and performance issues can be caused by oxygen sensor faults.

Over time, the engine can leak oil at various locations. Early-production vehicles require engine disassembly and modification to resolve leaks at the cylinder heads, oil return tubes, valve covers, timing cover, chain housings, case through bolts, and lines to/from the oil cooler.

The release mechanism for the clutch (including the release arm bearings and shaft) can fail and cause stiff, binding, and possibly noisy pedal operation.
The clutch release on early-production vehicles requires modification to make it compatible with newer repair parts.
The hydraulic fluid for the clutch system may be overlooked; the fluid should be replaced regularly during brake fluid service.
If aging or contaminated fluid is not replaced, there may be problems in the lines and actuating components, as well as clutch issues that are difficult to diagnose.

The accumulation of moisture at major connectors and control units can cause various ABS/PDAS faults due to corrosion.


The constant velocity (CV) boots and CV joints should be inspected at each service. Servicing the torn CV boots early can prevent the need to replace the CV half shaft or CV joint.

A normal operating clock may cause the airbag warning lamp to illuminate or a chronic dead battery.

The front hood and rear deck lid support struts may fail; replacement is required.

Engine issues related to valve guide wear are common. Oil consumption, smoking at first startup, and valve train noise are all symptomatic of loose guides and worn valve stems. The valve train is complex and should be thoroughly inspected if a problem arises.

The dual mass flywheel can fail and cause symptoms like noise and chatter when operating the clutch and changing gears.

Various repairs and adjustments to the drive mechanism (including cables) are commonly needed on the Cabriolet tops.

Ports and passages for secondary air flow can clog at the cylinder head/cam housing area. Partial engine disassembly may be required to fix the problem.

If engine misfiring, rough running, or fuel consumption issues are not resolved quickly, the catalytic converter can overheat and fail.