new member. My d40 lost speed passing a b-double road train

[rocketrhondda]

Hi
We recently bought a 2007 Navara Dual Cab when we moved to the outback . It was very well looked after. Driving from Brisbane to Tambo I went to pass a road train and half way past it, the engine started loosing power and slowing down. I had my foot to the floor and nothing. Absolutely terrifying going from 110 to nothing on a highway. I was told that this is an issue that Navara seems to have. Is it and if so what causes it. I can't drive it out of town now as I am scared it will happen again. We have an awesome mechanic in town and I want to tell him what it might be.

 

[Dancap]

do you have an iDrive fitted? If they are not in auto mode or turned off, they can be activated by high UHF interference when you or a large unit (the rig you were passing ) hit transmitt and there are any loose wires from your UHF output to aerial. Check the input/output connections at the back of your UHF. Had me baffled for days a few years ago when I had bought a 2nd hand D22 and luckily spoke to the right guy who had heard of the problem before.

 

[rocketrhondda]

do you have an iDrive fitted? If they are not in auto mode or turned off, they can be activated by high UHF interference when you or a large unit (the rig you were passing ) hit transmitt and there are any loose wires from your UHF output to aerial. Check the input/output connections at the back of your UHF. Had me baffled for days a few years ago when I had bought a 2nd hand D22 and luckily spoke to the right guy who had heard of the problem before.

I don't know. I will ask the man I bought it from. Thank you so much. This might be the thing. So grateful you have this advice.

 

[Jim Mikoz]

Hi
We recently bought a 2007 Navara Dual Cab when we moved to the outback . It was very well looked after. Driving from Brisbane to Tambo I went to pass a road train and half way past it, the engine started loosing power and slowing down. I had my foot to the floor and nothing. Absolutely terrifying going from 110 to nothing on a highway. I was told that this is an issue that Navara seems to have. Is it and if so what causes it. I can't drive it out of town now as I am scared it will happen again. We have an awesome mechanic in town and I want to tell him what it might be.

I have a 2013 Nissan D40 4WD and mine used to do that just after I had planted my foot to go up a hill. It must be a sticky fuel controler and when I looked on google a bloke recommended using FuelDoctor . I put in 500mls into a full tank and it fixed it. But the engine will still die if I forget to put 100 mls into the tank every now and again. Supper cheap sell it. Try it a friend was quoted $4000 to get the injector pump overhauled the Fuel doctor is about $56 so a lot cheaper

 

[BarneyB]

Do you know how many kms are on the fuel filter?
When your foot is flat you're asking for maximum fuel supply. Sometimes when a f/f is full of crap they will allow enough fuel through at partial load, but cannot flow enough at high load.
This scenario might trigger a fuel related fault code too. Is the CEL on?
It also explains why many people see an improvement after a bottle of fuel treatment/injector cleaner is added (which is a band aid).

Could be crap in the fuel tank that gets sucked up against the pick up when you give it the berries?
But again, I'd expect that to trigger a fault code relating to fuel pressure or similar.

It's possible your accelerator pedal assembly is faulty. There's a transducer in the pedal box that sends a variable electrical signal to the ECU/fuel pump to communicate your right foots' wishes.
(also, see above re iDrive malfunction)

Might also be a large loss of boost pressure from the t/c...
Sometimes the hot side hose can split. Apparently it makes a pretty awful sound though.
Check all the intake hoses and intercooler for splits, holes, loose clamps.
Does it have a boost gauge by chance?

I think Old Tony knows something about a loss of boost pressure when the neutral position switch fails. This can be intermittent too I believe. I'm sure he'll chime in with good info soon...