Loss of power
- Thread starter ruid93
- Start date
Help Support Nissan Navara Forum:
There could be a number of things causing this, and the other symptoms at the time will help us determine the most likely cause.
1) Fuel type - petrol or diesel?
2) Is there any smoke evident when this happens, and if so, what colour is it?
3) Does the Check Engine Light on the dash light up?
4) Does the car appear to be limited to a certain RPM?
For example, it could be the turbocharger actuator solenoid, which is a diesel problem and if it happens you'll have black smoke and no limitation in the rpm (it's just sluggish).
1) Fuel type - petrol or diesel?
2) Is there any smoke evident when this happens, and if so, what colour is it?
3) Does the Check Engine Light on the dash light up?
4) Does the car appear to be limited to a certain RPM?
For example, it could be the turbocharger actuator solenoid, which is a diesel problem and if it happens you'll have black smoke and no limitation in the rpm (it's just sluggish).
Ok well its a 2012 st d40 manual 2.5 diesel
When it happens there isnt any extra smoke than usual just the normal amount due to the diesel
Na no lights come on at all or no beeps and the engine even sounds the same
But yes it does feel limited on the throttle and I struggles to get to and passed 3000 rmp
When it happens there isnt any extra smoke than usual just the normal amount due to the diesel
Na no lights come on at all or no beeps and the engine even sounds the same
But yes it does feel limited on the throttle and I struggles to get to and passed 3000 rmp
If it's reaching 3000rpm without any extraordinary smoke then it could well be a SCV issue. Run some Liqui-Moly Injector Cleaner through and see what happens. I noticed a difference in my car in the first 100km.
Robski
Member
It may be a loose hose to the throttle body, mine did this on boxing day. Had nissan roadside assist come out and the big hose was loose, he refitted it and tightened the clamp. No problems since.
Hope this helps
Cheers Rob
Hope this helps
Cheers Rob
The car reaches normal operating temperature within minutes. Any temperature-based abberation is going to happen within the first half hour, although you could "inspire" that by towing something up a hill - temps rise real fast then! You'll know if it's temperature-related - your aircon compressor will shut down.
I wonder if there's something in the fuel system. Maybe a vac lock in the tank, could be a blocked breather? Try the same trip with the fuel cap left loose. The fuel system pumps diesel around like a demon - the entire 80L tank will pass through the pump every 5-10 minutes. However, if the tank is completely sealed, it should start having trouble drawing fuel after some of the fuel has been used and the pressure above the fuel in the tank drops enough. Then, the pump is challenged to draw fuel - which may start to draw air from the joins around the filter, or the primer.
Which gives me an idea. Next time the car starts acting up, immediately pull over and shut down the engine, pop the bonnet and try squeezing the primer bulb. It should take no more than 2-3 squeezes to go firm. If it goes for more, you may have a small leak allowing air into the line when the tank is reluctant to release fuel. Loosening the cap and clearing the breather will fix the problem - the leak isn't worth pursuing unless it's happening when the rest of the system is in good order.
Just some ideas, it's not a common problem!
I wonder if there's something in the fuel system. Maybe a vac lock in the tank, could be a blocked breather? Try the same trip with the fuel cap left loose. The fuel system pumps diesel around like a demon - the entire 80L tank will pass through the pump every 5-10 minutes. However, if the tank is completely sealed, it should start having trouble drawing fuel after some of the fuel has been used and the pressure above the fuel in the tank drops enough. Then, the pump is challenged to draw fuel - which may start to draw air from the joins around the filter, or the primer.
Which gives me an idea. Next time the car starts acting up, immediately pull over and shut down the engine, pop the bonnet and try squeezing the primer bulb. It should take no more than 2-3 squeezes to go firm. If it goes for more, you may have a small leak allowing air into the line when the tank is reluctant to release fuel. Loosening the cap and clearing the breather will fix the problem - the leak isn't worth pursuing unless it's happening when the rest of the system is in good order.
Just some ideas, it's not a common problem!
longy509
Member
sorry to be rude ruid iv just got a quick question for OT when u say 2 or 3 presses on the primer should this be the same when engine is cold as i primed mine the other morning cold and it took 6 or 8 presses to firm up i get random really rough idle on start up.
Black_Outlaw
Member
2 or 3 hot or cold..
8 means you have an air leak and your fuel is syphoning back to the tank.. Check your fuel filter and fuel lines for any cracks / nicks or breakages
8 means you have an air leak and your fuel is syphoning back to the tank.. Check your fuel filter and fuel lines for any cracks / nicks or breakages
As Black Outlaw says, hot or cold it should be the same. If you're getting more then there's an air leak.
Prime candidates are (in order of likelihood):
1) Aftermarket fuel filter with ill-fitting central o-ring
2) Hose clamps undertightened
3) Hose clamps overtightened crimping the hose
4) Damaged/aged fuel hoses (anywhere between fuel pump and fuel tank)
5) Broken fuel spigot on tank (the outlet)
longy509
Member
Thanks old tony and black.outlaw
her.d22
Member
This sounds like the problem I'm having now and I'm 400 kms away from home 
