S 140 wont rev past 4000prm ..WHY ??after i washed engine!! - Mercedes-Benz Forum

 
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post #1 of 3 (permalink) Old 05-23-2007, 06:03 AM Thread Starter
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S 140 wont rev past 4000prm ..WHY ??after i washed engine!!

i washed my engine and then this happened
any ideas what i should check
should i reset the evu if so how do i do it
is it in safe mode
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post #2 of 3 (permalink) Old 05-23-2007, 06:18 AM
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Quote:
Originally Posted by S3201994
i washed my engine and then this happened
any ideas what i should check
should i reset the evu if so how do i do it
is it in safe mode
S3201994,

If the car is in neutral and you are having fun with the loud pedal don`t worry.

The engine has a limiter which will stop you revving the engine beyond 4,000rpm.

If it`s happening whilst you are in gear then you have a problem and you need someone with real expertise to sort you out.
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post #3 of 3 (permalink) Old 05-24-2007, 04:19 AM
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Diesel engines have a govenor on the injection pump and this will not allow revs beyond 4000 when in nuetral.
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