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Navara Tekna NP300 2016
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Discussion Starter · #1 ·
Hi all
I have a np300 with 128k on the clock.
Yesterday the engine started to make a knocking sound mainly when accelerating or under load?
I have found metal particles and diesel in the engine oil and at a loss to what is happening.
When parked The engine revs tend to drop almost to stalling then rise again up to normal tick over?
Any suggestions on what is wrong would be gratefully received.
Many thanks
 

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Diesel in the engine oil may just be from the DPF regenerating (excess diesel is pumped in to regenerate)
The erratic tickover might also be caused by that.

Metal in the engine oil is normally a very bad sign.
 

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Navara Tekna NP300 2016
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34 Posts
Discussion Starter · #3 ·
Diesel in the engine oil may just be from the DPF regenerating (excess diesel is pumped in to regenerate)
The erratic tickover might also be caused by that.

Metal in the engine oil is normally a very bad sign.
The metal is worrying, in your opinion what would this be from?
As my mechanic is scratching is head on this, he’s talking injectors? But I’m not sure.
 

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Hi all
I have a np300 with 128k on the clock.
Yesterday the engine started to make a knocking sound mainly when accelerating or under load?
I have found metal particles and diesel in the engine oil and at a loss to what is happening.
When parked The engine revs tend to drop almost to stalling then rise again up to normal tick over?
Any suggestions on what is wrong would be gratefully received.
Many thanks
i had similar issues with my np300 @ 120,000 and ended up being my crank shaft pulley
 
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