1998 Porsche 911 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1998 Porsche 911
1998 Porsche 911 Problems
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.
Check Engine Light illumination and performance issues can be caused by oxygen sensor faults.
1998 Porsche 911 Questions
Can the old ones be gutted out?
How do you replace the ECU for the convertible top?
Where is the air filter located and how is it changed?