MVS Contributor Rattnalle shows us how to diagnose an exhaust manifold problem. In this case, it was a lost bolt and slipped exhaust manifold gasket. Very helpful video! Last autumn I had a weird ticking sound coming from the car. No other symptoms. Drove well. No codes. Eventually I put my hand behind the engine […]
This went to Elevate, EST, IPD, FCP, Andy’s, Viva, Heico, OBX, and Milltec: Performance Exhaust: an Open Letter from the “Touring Class” I’ve quickly come to love my new-to-me 2012 C70 T5, and of course I’m already considering all kinds of extras that I’ll have to save up for and prioritize. One of the first things […]
Hydro-lock Causes Engine Failure, Which Causes Engine Rebuild The project lasted into the third week. Were I to do this again, I could do it in a week without difficulty. Maybe 3 days. MVS Forums Contributor and advanced shadetree-level mechanic JimBee puts together a 288MB, 30-page downloadable PDF monster filled to the top with how to […]
Need to replace your 5-cylinder XC90’s front O2 sensor? Use this nice XC90 O2 sensor DIY with clip connector info and photos. MVS Volvo Forum member joelq created this tutorial: The CEL on my 2004 XC90 with ~148k miles has been on with a P0134 code – “Oxygen O2 Sensor Circuit No Activity”. Pretty sure I’m […]
MVS member Auburn T5 goes bananas on fixing up a 1998 Volvo S70 T5. Stage 0, new transmission, new struts, shocks and springs, you name it. Documented with photos too. Did a lot of stage zero work – inspected vacuum lines, changed oil filter, fuel filter, top motor mount, k&N panel filter, timing belt, water […]
Need to fix a rusted exhaust on a Volvo? MVS contributor xHeart documents fixing his rusted, broken, leaking exhaust on his Volvo. This saga included a Class A fiasco on the part of Parts Geek shipping mislabeled and dented exhaust, then shipping an exhaust for a completely different Volvo. What a mess. The two ends […]
Alright, my exhaust leak has been chronic for a few years, as it turns out, it is a leak at the Flex Pipe, just in front of the Catalytic. It gets worse and noisy, so I decided to tackle it.
Search forum for “OBX Exhaust Manifold” brand, about $200 on ebay etc., many people seem OK with it. I could not find any long-term report (such as 5 years or more) of happiness with OBX, also from my research the Honda people have some issues with OBX. Since this is a job I don’t want to do again for another 10 years, I decided to go with Volvo OEM because the OEM held up for more than 10 years!
MVS Volvo Forum Contributor rmmagow lays it out on catalytic converters (abbreviated often as simply “cat“): The CAT is a pretty simple device, no moving parts. The front O2 sensor is before the CAT and is the important part in the mileage equation. The rear O2 sensor (in most cars) does little but watch the stream […]