MF 7616 Losing all power

[Fen Farmer]

Experiencing an intermittent problem with one of our tractors. Have changed all derv filters yesterday and the problem has occurred today again, probably 6 hrs after filter change.
Tractor has had ad blue trouble in the past but dealer has been today and said the module is working correctly.
No error codes as such but when it does lose power, the max revs of the tractor reduce eventually to around 1000rpm. Leave the tractor to cool off and it seems fine again.
Dealer which came today has basically checked the adblue system as there was an error code on the system, but I can't help feel this isn't the problem, seems more like fuel starvation.
Is there any hidden gauze or filters on the MF 7600's? Checked the fuel delivery pipe from tank to pre filter and to the secondary filters a few months back and they were clear.
Banging my head a bit here! Anybody come up against anything similar?
Thanks!

 

[shumungus]

@dee

 

[Timbo]

If its fuel starvation of any sort, youll have low rail pressure fault codes

 

[Fen Farmer]

If its fuel starvation of any sort, youll have low rail pressure fault codes

Haven't had any of those, only errors recently and in the past have been adblue related.

 

[Nearly]

3 of them?

 

[Timbo]

Haven't had any of those, only errors recently and in the past have been adblue related.

Has this tractor been mapped?

 

[Fen Farmer]

Has this tractor been mapped?

No, never been mapped, we have owned it from new.

 

[kiwi pom]

So the dealer didn't check anything else, just gave up?
Something random like the fuel tank not venting properly wouldn't cause it would it?

 

[Timbo]

Find another dealer or mechanic

 

[Fen Farmer]

So the dealer didn't check anything else, just gave up?
Something random like the fuel tank not venting properly wouldn't cause it would it?

He checked the adblue module to see if it was building pressure correctly in reference to the error code which it was, In the mean time he had stopped the tractor whilst doing his checks with the laptop. I had deliberately left the tractor running whilst waiting for him as I knew what would happen! By the time he had started it again the tractor was running fine again. Most annoying!
He said he could have checked the fuel pressure but being the tractor was running fine again, there was little point.
Perhaps I should check the vent to see its clear.

 

[Davy]

If it was the vent or restricted flow, you'd be getting a low rail pressure code?

 

[Fen Farmer]

If it was the vent or restricted flow, you'd be getting a low rail pressure code?

Which I'm not, so all a bit odd really.

 

[Davy]

When it starts loosing power, switch off and pull the pipe from the tank off too see if you've any vacumn going into the tank. That would tell you if there's a restriction.

 

[Speedstar]

Sound all to common , Add blue problem , with no error code been there before .

 

[James]

Sound all to common , Add blue problem , with no error code been there before .

So what was the fix?

 

[bill and bens dad]

buy a Fendt !! great savings on fuel lol

 

[Speedstar]

So what was the fix?

We sold it ,was on a 7618

 

[Speedstar]

Experiencing an intermittent problem with one of our tractors. Have changed all derv filters yesterday and the problem has occurred today again, probably 6 hrs after filter change.
Tractor has had ad blue trouble in the past but dealer has been today and said the module is working correctly.
No error codes as such but when it does lose power, the max revs of the tractor reduce eventually to around 1000rpm. Leave the tractor to cool off and it seems fine again.
Dealer which came today has basically checked the adblue system as there was an error code on the system, but I can't help feel this isn't the problem, seems more like fuel starvation.
Is there any hidden gauze or filters on the MF 7600's? Checked the fuel delivery pipe from tank to pre filter and to the secondary filters a few months back and they were clear.
Banging my head a bit here! Anybody come up against anything similar?
Thanks!

What age is it ?

 

[Fen Farmer]

What age is it ?

2014

 

[Jsmith2211]

had a similar thing happen on our case maxxum but got a loud STOP warning. fuel filters clogged due to dirty fuel. its possible depending on the age of the tractor maybe the sensor isnt working? Worth a shot at changing your fuel filters and cleaning any screens on fuel bowls etc.