Engine tapping noise loud and terrible

Tiny
BENLOTO09
  • MEMBER
  • 2000 MERCEDES BENZ ML430
  • 142,000 MILES
I have sent car for oil change and oil filter once
This was done car started to make a terrible tapping noise
On engine top very loud maybe valves knocking
Does it need a knocking sensor?
It starts ok and drives just this terrible noise I need
To get off
So far I change air mass and crankshaft sensor
This car also runs on LPG can it affect in any way?
Please help
Regards
Ben
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Wednesday, September 25th, 2013 AT 3:42 AM

1 Reply

Tiny
MHPAUTOS
  • EXPERT
Is the oil pressure ok? Is the oil level ok?
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Wednesday, September 25th, 2013 AT 4:48 AM

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