2004 Porsche 911 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2004 Porsche 911

2004 Porsche 911 Problems

Rear Main Seal/Intermediate Support Cover O-ring may Leak Oil

Engine oil leaks can occur at the rear main seal and/or intermediate support cover o-ring; a revised seal is available. A careful diagnosis with proper tools is necessary to verify dimensional accuracy of the crankshaft to engine block.

Misfire due to failed mass air flow sensor or failed purge valve
A failing mass air flow sensor or EVAP purge valve can cause misfire issues.
Check Engine Light due to cam tensioner/timing issues

Cam tensioner/cam timing issues can cause the Check Engine Light to illuminate.

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2004 Porsche 911 Reviews

This car is so great. I would love to own one. My buddy has one and we took it to Road America and got 173 mph out of it!

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