986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - How to diagnose and resolve engine issues using Durametric.

jb92563 · 05-14-2014, 09:38 AM

Got a new Fuel filter, Gas cap, Oil cap rubber seal and spark plugs to install.

I still feel its a vacuum leak so I'll probably recheck the new AOS install for leaks.

I have this feeling that when I removed the part of the AOS that sticks into the engine block the rubber seal from the old one did not come out on the spigot so when I installed the new one perhaps it did not seal properly.

I will pull the new one and get the inspection camera in there so I can see if that is the issue, as I'm not sure what the old one had on the spigot for a seal, but its reasonable to assume something like the new one has, which was missing when I pulled the old one.

05-14-2014, 09:38 AM	#10
jb92563 Registered User Join Date: Apr 2012 Location: Riverside, CA Posts: 1,665	Got a new Fuel filter, Gas cap, Oil cap rubber seal and spark plugs to install. I still feel its a vacuum leak so I'll probably recheck the new AOS install for leaks. I have this feeling that when I removed the part of the AOS that sticks into the engine block the rubber seal from the old one did not come out on the spigot so when I installed the new one perhaps it did not seal properly. I will pull the new one and get the inspection camera in there so I can see if that is the issue, as I'm not sure what the old one had on the spigot for a seal, but its reasonable to assume something like the new one has, which was missing when I pulled the old one. __________________ "It broke because it wants to be Upgraded " 2012 Porsche Performance Driving School - SanDiego region 2001 Boxster S, Top Speed muffler, (Fred's) Mini Morimotto Projectors, Tarret UDP, Short Shifter, Touch Screen Dual Din Radio, 03 4 Bow glass Top (DD & Auto-X since May 17,2012)