How can I tell if my Boxster air separator is failing?
If you’re still not sure, you can take a closer look at the hose that connects the air-oil separator to the intake manifold (yellow arrow, Figure 2 ). If the unit is failing, then there will be a significant amount of oil or residue in this tube.
Why does the Porsche Boxster engine squeal when running?
The oil cap may be very difficult to remove when the engine is running due to high vacuum levels. In addition, you may hear a high-pitched squeal from the engine when it’s running: this is caused by air being sucked in past the crankcase seal due to the extreme vacuum inside the case.
What should I do if I see blue smoke coming from my exhaust?
If you see blue smoke coming out of the exhaust, all the time, PCV Valve is the frist thing you should check. If you observe blue smoke appearing in your car all the time, PCV (Positive Crankcase Ventilation) Valve will be the first thing you should check.
Can a Porsche Boxster air oil separator be replaced?
There have been many updates to the unit over the years. The later-style units are a direct bolt-on replacement, but the hose that connects the air-oil separator to the throttle body has been updated as well (the old one is a little too short).
Why does my 996 Boxster blow smoke out of the exhaust?
996, 997’s, and Boxsters use an oil air separator which basically reduces oil vapor that recirculates in the engine. Unfortunately, they use a rubber diaphragm that is prone to failure. The result is excessive smoke out of the exhaust on start up and driving.
Are there any problems with the 986 Boxster?
The upgraded aos features a doubling in size of capacity for scavenging and is less prone to sucking up oil during high speed cornering. M96 engines fitted to the 986 and 987 Boxster can have issues with a bearing at one end of the engine intermediate shaft. The shaft connects the two ends of the engine timing gear.
Why does my Porsche Boxster have an AOS problem?
The AOS has caused numerous issues on Porsche engines and is an item to be closely monitored. As the membrane in the AOS fails, oil is sucked into the air intake. Initially this can show up as a check engine light for fuel adaptations with oil being deposited on the o2 sensors causing emission faults.
Why does my Porsche Boxster make a knocking noise?
The M96 and M97 engines found in the Boxster are famed for cylinder scoring – deep gauges in the cylinder liner, usually associated with a knocking noise and eventually catastrophic engine failure. The root cause of this issue is open to discussion, however, wear in the piston rings and liners causes the piston to wobble.