Skip the auto shop - Our mechanics make house calls

Q: Turbo

asked by on

My car is making a weird sound and jerking around 2000 RPM only been doing it a few times here recently it's a turbo car so I don't know if it is the turbo

Without hearing the sound, I can’t really give you any sound advice. I can however give you a diagnostic path to follow. If you can recreate the sound while sitting still, then the first order of business is to locate the source of the sound. This is best done with a stethoscope that you can purchase from most auto parts stores. Once you locate the sound, you can go from there.

Some of the problems the 1.8l turbo has are as follows:

  • Oil pressure problems. If the oil hasn’t been changed on a regular basis, this can lead to many problems for the motor. The largest being a build up of debris in the oil pan pick up tube followed by clogging of oil passages in the head. This will result in the cam eventually seizing. There is a chain at the rear of the head that has a tensioner that is vulnerable to this issue as well. If it is not getting oil, the chain and cams will rattle making a sound that is loud and a warning your motor is about to fail.

  • Being a turbo motor, several of the exhaust shields can come loose and make very loud rattling sounds. These sounds will occur at specific RPM’s and load conditions.

  • The timing belts don’t last to long after their scheduled maintenance period. If this maintenance is pushed to far, you can get several similar sounds to what the rear chain will do. Not to mention, if the timing belt breaks, major engine damage will occur.

These are the most common for your Passat. Remember, the main thing you should do first is locate the sound. If you need assistance in doing so, consider YourMechanic, as a certified technician can help pinpoint the noise you’re hearing and help you fix it accordingly.

Good luck!

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: Bad head gasket on a 1987 Porsche 944 Turbo

You certainly can on an older car like that. Let me tell you something, I worked on one of those last year (the same year model), and the guy who originally owned the car was a professional wrestler and thought...

Q: Hey Honorio. What would be a price everything to change the oil pan on 2004 passat ? 1.8l turbo

Hi there. In order for us to provide you with an estimate, we need you to request a quote by clicking this link.Once you're at that page, click the Get a Quote button and submit your information. Thanks.

Q: Check engine light comes on when accelerating hard in first gear

Hi Laura, welcome to YourMechanic and thanks for writing in. I'd be happy to help. This could be potentially a faulty mass airflow sensor which is something that regulates air intake into the engine, and relays this info to the...

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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.