Q: VW passat 2006 running car stopped all on a sudden. Battery full power, fuel > half tank, Fuel pump ok,mass flow no blocks

asked by on

Running car stopped all on a sudden. Battery full power, fuel > half tank, Fuel pump ok,mass flow no blocks. What could be the problem?

My car has 110000 miles.
My car has an automatic transmission.

The place to begin when a car won’t start is to figure out what is missing. An internal combustion motor needs fuel, proper fuel pressure, spark, correct cam timing and compression to run.

Here are some items you will need:

You will need to check for the presence of all of these using the tools I have linked to above. There are a variety of different scenarios that can play out here. If you don’t have spark or injector pulse as indicated with a noid light, you should suspect a crank or cam sensor. Anything that allows the ECM to supply both spark and fuel is suspect.

You will need to find your fuel pressure specification in a shop manual to confirm it is operation properly. A fuel pump can fail due to power supply failure or the pump can fail itself. Banging on the bottom of the fuel tank while someone cranks the car is a valid test that makes fuel pump diagnosis easy.

Check compression in every cylinder. If some are significantly lower compression than the others, suspect a problem with camshaft timing. Follow that up with a timing belt inspection if the compression is off in some cylinders.

Once you find what is missing, you will need to follow that info up with some study to figure out what affects the failed system.

If you feel like you need some assistance with these checks and repairs, enlist a qualified mechanic who has the tools and experience to properly diagnose the cause of your stall.

Good luck.

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. VW passat 2006 running car stopped all on a sudden. Battery full power, fuel > half tank, Fuel pump ok,mass flow no blocks

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: engine rpm drops or stalls at stop light on abrupt braking.

Hi there. In many cases, the issue you're talking about is caused by an ignition timing problem; typically related to a damaged crankshaft position sensor or trouble within your ignition system such as the coil or distributor. This can be...

Q: MY car is shaking and my epc light is on I own a 2008 vw Passat 2.0t

Hi Tristin. Thanks for contacting us tonight. he EPC stands for Electronic Power Control. When this light is activated, it usually indicates a rather serious fuel or ignition system fault. However, with the vehicle vibrating, it could indicate a vacuum...

Q: Car may have gas leak

Hello. If your car may have a gas leak, a technician can inspect the gas leak issue. Most of the time the leak is in one of the rubber sections of the fuel line. As for the shifting, if you...

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
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...