If a Volkswagen Jetta loses power while driving uphill, one possible explanation is that the mass airflow sensor has gone bad. Another possibility is that the intake manifold could be clogged. The only way to know for sure what's wrong is to take the car to a mechanic.
If a wheel bearing is bad you will hear a howling noise while your driving.
Your car lost power while you were driving and it will not start now because the battery is depleted.
The alarm should turn off once you start the car. If the alarm is going off while you are driving, pull over and remove the fuse.
It could be your connection to your battery. If its bumped loose, you would lose all power, even while driving.
High pitch sound could be your superchager. Turbo's shoot out a spit of air sound. Maybe your jetta is supercharged stock. Espically if its a tiptronic transmission.
Is the engine running ? no
my car has no power when driving. plus its hard to start. after i ran it low on fuel
There are many reasons as to why a car may lose power while driving. However, the most likely cause is a bad fuel pump. This causes the car to 'think' that there is not any gas, so it begins to stall, and eventually stalls while driving.
i replace the erg,tps,idle control module and ignition control module,and while driving past 30mph i loss power why
Do you lose power when you turn the radio on? Probably electrical
Try closing the doors?
It can be related to gas and electrical power.