Volvo Forum + Help for Owners
Emissions and fuel economy – the systems on our Volvos that work to give us drivers clean fuel efficiency like EVAP valves, purge valve, air pump, oxygen sensors etc. Also, fuel economy… city MPG and highway MPG.
Good technical information on the general working principle of oxygen sensors.
When I reset the Check Engine light and it came back on between 40 and 150 miles later, I knew it was time to change the oxygen sensor.…
How can my vehicle fail OBD II emission inspection? Your vehicle can fail OBD II emission inspection for any of the following reasons: If your Check Engine (MIL)…
A Volvo PCV job is a pretty manageable project for the typical do-it-yourselfer. Learn more here about how to do one, how long it might take, parts you…
I am planning a spring trip from RI to Alaska, returning by way of CA and the southern route. The trip will probably be close to 10K miles. I want to have on hand critical, show stopping devices that would be hard to come by without ordering and waiting for parts. My List so far includes a good set of tools, oil, oil filter, fuel filter, air filter, radiator hoses, coolant, cell phone, cap, rotor, plugs and wires and transmission fluid. This is a 98 V70, early model low-pressure turbo AWD.
The past few times I’ve tried to fill up the gas tank the pump keeps shutting off after just a few seconds, no matter how slow you try to pump in the fuel. It took me a while to finally get the tank full. This is new behavior for this car. As part of the diagnosis, I decided to check out the roll over valve to make sure that it was allowing the vapor from the tank to pass through to the charcoal canister during fueling.
The CVVT job — burn off environmentally bad gasses produced in the first minute or so from a cold engine. CVVT technology superseded fussy air pumps after it…
Emissions testing: required for all Volvos made after the last ice age, right? Not for some 1993-2000 FWD/AWD Volvos. Volvo’s emission standards were too high on the P80…
V8 – expensive long-term maintenance, thirsty 3.2 – weak (but durable) T6 – transmission time bombs 2.5T – durable, relatively efficient, my choice… but good XC90 2.5T samples…
MVS Forums Moderator abscate made an interesting post about OBD-II readiness states during state smog emissions testing. It turns out that recently (2015 for California) some states have…
Almost five years ago, MVS Contributor dan777 started a poll in the MVS forums and asked What Helps MPG? Almost 300 votes later across 30 poll choices, here…
Volvo Parts Numbers Don’t Change… The numbers stay the same and the parts change. Check out Neil’s post about a Volvo evap pump part #31392490 for his 2006…