Problem Reports
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1999 Porsche Boxster
Various Faults Due to Intenal Leak at the Oil Seperator
Smoke, oil consumption, and fuel trim issues with various fault codes can be traced to an internal leak at the oil separator.
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.
Electrical Issue Due to Failed Ignition Switch
If the vehicle cannot return to run position after start or if the interior fan is not getting power, it may be the electrical portion of the ignition switch has become erratic or has failed. The entire switch assembly should be replaced.
Erratic Operation of Power Windows
The power windows not lowering when the Cabriolet top latch and/or door handle is operated or lowering unexpectedly while driving can be caused by a failing Cabriolet top or door handle micro switch. Diagnoses will be required to determine which switch is at fault and will require replacement.
Coolant Loss and Engine Overheating
Persistent coolant loss can be caused by a small leak at the coolant reservoir. Our technicians tell us the leak may not be visible due to the trunk carpet hiding the leak.
Abnormal Noise When Shifting Manual Transmission
Abnormal noise may be noted when shifting or reverse gear is selected in vehicles with a manual transmission. If this problem is encountered, proper operation of shift cables and clutch should be verified before any other repairs are attempted.
Defect in window motors may cause electrical issues
Check Engine Light due to cam tensioner/timing issues
Check Engine Light Due to Internal Vacuum Leak at Oil Seperator
Various fuel trim and oxygen sensor limit fault codes can be traced to an internal vacuum leak at the oil separator.
Water Leak From Cabriolet Top Due to Clogged Drains
The drains in the Cabriolet top can clog, causing water to leak onto the carpets. Water can also accumulate in the doors, causing various electrical problems.
Airbag Warning Light Due to Seat Belt Buckles, Wiring, or Module Faults
If the airbag warning light illuminates, it must be attended to quickly. Seat belt buckles, wiring updates/repairs, and/or airbag module faults may be the cause.
Misfire due to failed mass air flow sensor or failed purge valve
Dragging/stiff pedal due to plenum drainage issue
Symptoms such as dragging or a stiff pedal can be caused by accumulated water entering the brake booster. The root cause is a plenum drainage issue. Updated parts are available for early-production vehicles.
Coolant loss may be a sign of internal engine problems
Engine carrier/rubber portion of mount yoke may fail
Check engine light due to various leaks
Alarm/remote entry problems due to accumulated water in electronic control units
Engine noise from intermediate shaft area
Abnormal noises from the intermediate shaft area may be signs of impending engine failure, don't wait to get this issue checked out!
Windows/Interior Trim are Prone to Squeaks/Rattles
Windows and interior trim can be prone to squeaks and rattles. Numerous, small adjustments may resolve the issue. Additional creaks have been attributed to front and/or rear window fit as well.