Tapping noise and stalling issue

[ebrunsturbo6]

Hey guys. I've been having a tapping sound coming from my engine in my turbo-t. It's taps very quietly at idle and gets louder until around 3000 rpm and then goes away. The car idles rough at times and has stalled out in traffic a few times too. The SES light also will turn on when it starts running rough, but usually turns off by itself after a half-minute or so. Could this be a loose cam sensor causing this? I've been driving it 20 miles both ways to work for the past 2 days, but the tapping noise hasn't gotten worse in that time, so hopefully it isn't a rod bearing. When babying the car, the engine runs very smooth with almost no tapping noise. I'd appreciate your input.

 

[Joe 1320]

Could be one of many things. A mechanic's stethescope can be used to pinpoint the noise. Check around the oil pump housing, check around the lower intake (lifters), heads (valvetrain), block (bearings or cam).

 

[unobetr]

check the crank sensor also.

 

[87T-Type]

X2 on the crank sensor!!
Had a chattering noise also and thought it was the turbo! With the rough running then not running, i found out my crank sensor was rubbing on the crank pulley, I backed it off and set it! Car runs great now, no longer stalling and the noise is now gone!
Hope this helps!

 

[Phoneguy]

Also check the crank bolt.

Bryan