Q: My XC90 Volvo 2006 I thought was the PCV system so I had all the hoses there changed as well as the oil catch can but my engine li

asked by on

Okay so I've had rough idle but even dies at times when it's cold even when it's warm and I thought it was my PCV system and so I had the oil catch can and all hoses changed but the engine light is still on and it still has a rough idle not as much but it does seem like it has more power accelerating the codes that pulled up before I change the hoses and catch can was something in the steering wheel and the mass air flow is low I have 18 days left what should I do what should I guess that is causing this rough idle and I just changed my mass airflow sensor just about a month ago

My car has 164251 miles.
My car has an automatic transmission.

There are more than ten principal causes of rough idle and that list doesn’t include potential mechanical faults such as uneven cylinder compression. By far, the most efficient strategy to resolve this issue is to request a rough engine idle diagnostic. The responding certified mechanic can scope the cylinder firing patterns, in each cylinder, and see, at a glance, if the problem stems from a few faulty cylinders or if there is a global engine management problem. Among the more notable causes of rough engine idle are a stuck open EGR (exhaust gas recirculation) valve, dirty fuel injectors, incorrect idle speed setting, vacuum leaks, incorrectly installed or damaged spark plugs, defective or clogged fuel pump, clogged fuel filter, failing electronic components such as the ignition control module, plug wires, coils, and spark plugs, a defective airflow sensor, and dirty oxygen sensors.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. My XC90 Volvo 2006 I thought was the PCV system so I had all the hoses there changed as well as the oil catch can but my engine li

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Number five cylinder problem

The wiring on older Volvos, such as with your 1996 Volvo 960, can be a little temperamental and have bad connections. If the ignition coil is good but the coil itself is not receiving the electrical signal from the computer,...

Q: Q: Car shakes at highway speed.

This could be a wide range of things ranging from an out of balance wheel and tire, a worn wheel bearing or various other suspension parts. Without additional information related to the sound or how frequently it may be tough...

Q: My car idles high in drive while the brakes are applied.

You may have a dirty or failing idle air control valve. The idle air control valve reads the air intake as it is mixed with fuel prior to being injected into the engine at low speeds and at idle. Since...

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...