Q: So I just bought a 2009 Audi A4 Quattro, and all we did was change the oil, and the car started shaking. What could be the problem

asked by on

So we recently bought an Audi A4, and it needed a oil change. We changed the oil and the car started shaking, sometimes it runs good but other times it seems to lose power a bit. What could be the problem?

My car has 82700 miles.
My car has an automatic transmission.

Rough operation and loss of power on acceleration can be due to plugged fuel injectors, faulty oxygen sensors, fuel pump and/or filter, vacuum leaks, ignition system malfunctions, bad valve timing if the timing belt or chain is worn or skipped, blocked exhaust (e.g., catalytic converter fails or become clogged), a faulty airflow sensor or throttle position sensor, and so forth. To pinpoint the exact case will require an engine loss of power diagnostic. If you request that diagnostic, the certified mechanic will get this resolved for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

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. So I just bought a 2009 Audi A4 Quattro, and all we did was change the oil, and the car started shaking. What could be the problem

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: Steering wheel won't turn

It is unclear if you are referring to a locked steering column versus a circumstance where there is loss of power assist or perhaps failure of a steering linkage that is causing the steering wheel to bind. Regardless of which...

Q: Car chokes

Hesitation upon acceleration usually means the air/fuel mixture is lean or that there is an ignition misfire under load. Any of these conditions should set a diagnostic trouble code (DTC) and turn on the Check Engine Light. Retrieving the DTC...

Q: How long can a car run with a broken CV axle boot?

The axle CV joint boot is there to hold the lubrication for the joint and keep out dirt and water. Without replacement, the joint grease comes out first and collects dirt within. The dirt acts as sand paper and grinds...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...