My suggestion of a good place to check... For me this code came on in my 99’ s70 GLT and it ended up being an emission system hose, about a half an inch in diameter that runs between the exhaust (header?) and the engine, it was literally falling apart. It was split down the entire run of the hose. I...

Hello everyone! So I have been having an occasional problem for about a year now when starting my 99' S70. From other posts I've been reading it really seems like the problem is my immobilizer ring. But I need advice... The Problem: (The problem happens about once in every 30-35 starts) I go to star...

I would say that the seal on oil cap is bad...pretty common....i doubt that oil escaped through that bolt. Hmm... what has me scratching my head though is that the oil was only in that one spark plug cylinder. The other ones were fine. #5 had a tiny bit but it seemed old like it had been there for ...

Hello Guys! hope you are doing well. I have a 1999 Volvo S70 Non-Turbo 170,000 miles, and recently I've had some rough idling and starting trouble on and off for the past 6-8 months (I don't drive that often, maybe 2 or 3 times a week) so I decided to change my spark plugs and that's when I discover...

Thanks guys for your help! replacing the sensor with a Genuine Volvo sensor solved the problem. Everything is working fine now.
Thank you!

Okay I will make a swap for a Volvo sensor and keep you guys posted if it works. Thanks!

The expansion tank is Genuine Volvo. https://www.fcpeuro.com/products/volvo-expansion-tank-s70-v70-c70-30741975 The Sensor is "Pro Parts Sweeden" https://www.fcpeuro.com/products/volvo-coolant-level-sensor-c70-s70-v70-s60-s80-uro-parts I got both parts from FCPeuro.com The wires seem to be...

Hello all! In short: Got a new expansion tank and low coolant sensor, and now the coolant light comes on and stays on in spite of there being plenty of coolant. More details will be of importance below... My 1999 S70 (otherwise known as Sophie the Sweedish Fish, for her lovely red color). I recently...