What happens when a cam sensor fails on a VW Jetta?
This in turn allows the fuel injection and ignition systems to operate correctly. A failing cam sensor can cause rough running, poor throttle response and in some cases will prevent the engine from running altogether. When a cam sensor fails, it usually triggers a fault code related to the sensor that isn’t working correctly.
How to change the camshaft position on a VW Jetta?
VW makes a special tool (VW part number 3415) to hold the timing gear stationary while you loosen and remove the 18mm retaining bolt (green arrow). I found that you could also hold the gear in place with a stout strap wrench as shown here. Once the bolt is removed, pull the timing gear off the end of the camshaft.
What is the part number for the timing gear on a VW Jetta?
VW makes a special tool (VW part number 3415) to hold the timing gear stationary while you loosen and remove the 18mm retaining bolt (green arrow). I found that you could also hold the gear in place with a stout strap wrench as shown here.
What should I do if my cam sensor fails?
When a cam sensor fails, it usually triggers a fault code related to the sensor that isn’t working correctly. You’ll need to use a diagnostic scanner, such as VAG-COM to read the fault code, determine if it is bad and then determine your next course of action.
https://www.youtube.com/watch?v=tm6YLCcH3_Q
What are the symptoms of a bad camshaft position sensor?
The engine may stall intermittently. You may notice poor engine performance including irregular acceleration, misfiring, hard starting, or surging. On some car models, a failed CMP sensor will prevent the ignition from making a spark, so that the engine won’t start at all.
Why is my VW Jetta not running properly?
With no spark to ignite the gas in the combustion chamber, the engine simply won’t run. Chances are that this symptom will not be the first that you notice, but if you start to sense that it is not running as efficiently or smoothly as usual, the camshaft position sensor may be at the root of the problem.
How can I tell if my crankshaft sensor is bad?
Another sign of a crankshaft position sensor problem is rough idling. While idling at a red light or otherwise stopped, you may notice the engine grinding or vibrating. When this happens, it means the sensor is not monitoring the crankshaft’s position, leading to vibrations that affect overall engine power.