S320 running rough after timing cover reseal - Mercedes-Benz Forum
 
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#1 (permalink) Old 06-16-2009, 07:22 PM
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S320 running rough after timing cover reseal

I replace my timing cover seal the other day along with the belt tensioner, Everything went back together good but once I started the car the idle was very unstable... like a slight miss

In park the rpms are at 700 to 750
When I put the car in gear it gets really bad and the rpms go from 500 to 750

-----------------------------

I checked if the spark plug wires were plugged in all the way and they were fine and in the correct order.

All sensors are plugged in and were functional before the repair.

I checked for vacuum leaks with carburator cleaner and I could not find anything

The wiring harness looks to be in alright condition.



What could it be?
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#2 (permalink) Old 06-16-2009, 10:06 PM
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Vacuum leak,check around ETA.Disconect the battery for 1 minute.

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#3 (permalink) Old 06-17-2009, 04:14 PM
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what is the ETA?
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#4 (permalink) Old 06-17-2009, 05:33 PM
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ETA=Electronic Throttle Actuator. What used to be called a throttle body until it became servo controlled.
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