Why does my Volvo XC90 have a rough idle?
While there are a variety of reasons your Volvo XC90 has a rough idle, the most common 3 are a vacuum leak, an issue with the spark plugs, or a problem with the ignition coil.
What are the most common problems with Volvo transmissions?
Common Problems with Volvo Transmissions 1 B4 Servo. If your Volvo transmission hesitates to shift gears, it bangs into gear; the problem could be the B4 servo. 2 Valve Body. 3 Transmission Fluid. 4 Software Issues. 5 Transmission overdrive relay. 6 Valve body solenoids – Delayed shifting when hot.
Why does my Volvo have a gear ratio problem?
TCM-002A Incorrect gear ratio in third gear. Volvo transmission issues date back to the early 2000s Volvo models. Transmission Control Unit (TCU) software is to blame in many cases, but problems with the valve body, shift solenoid, worn clutches, transmission overdrive relay can also be the culprit.
What to do if your Volvo clutch is not working?
Volvo’s fix to this problem was to update the software for the Transmission Control Module (TCM). The update disabled the neutral feature. If the problem existed for a long time, the clutches might wear the point that a complete transmission overhaul is required. Replacing the valve body can sometimes fix the problem, but this not a guaranteed fix.
Is there a problem with my 2004 XC90?
On top of transmission complaints, the 2004 XC90 also has problems with a sudden loss of power. The lucky ones are met with a “reduced engine performance” message, while others are left stranded on the side of the road waiting for a tow. No one has added a helpful site for this 2004 XC90 problem yet. Be the first!
Why does my 2004 Volvo Cem get corroded?
I finally Googled it myself under 2004 XC90 Issues and found this issue is way more common than what Volvo led me to believe. The CEM gets corroded because of water in the passenger compartment due to a plugged sunroof drain.