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geraintthomas · 02-20-2018, 10:46 AM

I couldn't take the oil cap off while the engine was running, and after stopping it, removing it, then re-starting it, the engine ran like crap - so that looks okay.

The hissing is coming from around that area, and it seems like it's coming from underneath the resonator tube (underneath the tube in the photo). There's a bunch of vacuum lines under there, so hopefully it'll just be something that's popped out.

I'm going to remove the resonator tube when I get a free day, and will check all the rubbers and tubes. That, with the new O2 sensors (they're 15 years old anyway), should do the trick.

02-20-2018, 10:46 AM	#6
geraintthomas Registered User Join Date: Nov 2015 Location: South Wales, UK Posts: 852	I couldn't take the oil cap off while the engine was running, and after stopping it, removing it, then re-starting it, the engine ran like crap - so that looks okay. The hissing is coming from around that area, and it seems like it's coming from underneath the resonator tube (underneath the tube in the photo). There's a bunch of vacuum lines under there, so hopefully it'll just be something that's popped out. I'm going to remove the resonator tube when I get a free day, and will check all the rubbers and tubes. That, with the new O2 sensors (they're 15 years old anyway), should do the trick. __________________ Porsche Boxster S Type 986 Bi-xenon Headlight Upgrade \| 987 S 18" Anthracite Alloys \| Android Head Unit \| 5000k 55w HID's \| 5000k Cree DRL's \| 5000k Cree number plate lights \| Cree LED Indicators \| One-touch roof operation \| Bypass exhaust pipes \| Parking sensors \| Ambient footwell lighting