O2 sensors will not prevent your car from starting. Please don't replace them. Are you sure you are getting fuel into the cylinders? Do you have fuel pressure and are the injectors are opening?
Hi, this is normally caused by warped front brake rotors. The solution is to have the brake pads replaced and the rotors machined to remove the warpage, or in many cases they will just replace the rotors. Have it checked out, because it can also be the rear brakes, or in rare cases a suspension issue. Good Luck
Hello, I assume you are referring to downloading the data you have in your MyCar account. Let me know if that is not the case. If so, we unfortunately don't have this functionality right now, but I will pass this on to our product team. Thank you
Check to see that both fuel pumps are working properly, check the MAF sensor, and the fuel pressure regulator.
Several possibilities, best to have a Volvo mechanic/shop check to see what diagnostic codes are stored in the transmission and engine computers and diagnose accordingly.
It's very difficult here to tell what is happening, so it's best to take it to another shop for a second opinion. Don't tell the second shop what the first one said until after they diagnose the issue. Good luck!
Is it an engine noise? Is the oil pressure light on?
You'll need to find the source of the leak and address it. What kind of help do you need?
5 volts should be the reference voltage from the ECM to the ECT, do you have that? The voltage signal that goes to the ECM will be lower, and that may be what you are measuring?
This is indicating that the transmission computer has identified an issue and is flashing the OD light to warn you. There are many possible issues that can cause this, so it's best to have a shop perform a diagnostic check on the vehicle. If you need a shop, look for a RepairPal Certified shop near you: http://repairpal.com/volvo-within-10-miles-of-43140 Good Luck!