Problems for specific Porsche 911 years:
Car problem reports
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Most reported Porsche 911 problems
The accumulation of moisture at major connectors and control units can cause various ABS/PDAS faults due to corrosion.
If engine misfiring, rough running, or fuel consumption issues are not resolved quickly, the catalytic converter can overheat and fail.
Various repairs and adjustments to the drive mechanism (including cables) are commonly needed on the Cabriolet tops.
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.