I bought a navara tekna 2010 with black smoke on acceleration. Has had full service, engine terra clean and a new turbo, but still smokes. Garage told me the smoke will continue until oil has burned out of the system, have done 200 miles and still smokes just as bad. Any ideas where I should go next. Engine diagnostics show no fault codes.
johnll60
Did they change the air filter, fuel filter and clean the MAF as part of the service?
Black or blue/black smoke?
Does it smoke all the time or just at high revs?
Black or blue/black smoke?
Does it smoke all the time or just at high revs?
Suggest you clean the maf, reset the fuel pump and add injector cleaner to the fuel.johnll60 said:
This guide is a good starting point, just make sure your garage did what they said they did 
(filters); viewtopic.php?f=14&t=103010
Excess black smoke is generally the engine struggling to get enough fresh air or there is a boost leak. Check your turbo hoses to and from the intercooler for leaks (there is normally an oily stain if they are leaking). The intercooler is worth checking and can be seen easily by removing the front grill.
Oh and :+1 for everything landmannnn has said. :dance:
(filters); viewtopic.php?f=14&t=103010Excess black smoke is generally the engine struggling to get enough fresh air or there is a boost leak. Check your turbo hoses to and from the intercooler for leaks (there is normally an oily stain if they are leaking). The intercooler is worth checking and can be seen easily by removing the front grill.
Oh and :+1 for everything landmannnn has said. :dance:
I have a similar problem with my 2009 2.5 Pathfinder. It smokes when pulling a load uphill (caravan) and also on hard acceleration. I've cleaned the MAF, fitted a new K&N Air Filter, and blocked the EGR. I had a look in the turbo, and it had some black stuff in there, but it was dry, not oily.
Any suggestions?
Any suggestions?
Apart from losing your radio preset stations, there are no drawbacks doing an ECU reset.
Try a hard reset.
It would be appreciated if you updated your location in your profile, there may be a helpful member nearby; viewtopic.php?f=38&t=99610
Try a hard reset.
It would be appreciated if you updated your location in your profile, there may be a helpful member nearby; viewtopic.php?f=38&t=99610
I've been noticing similar black smoke lately on my 2010 Tekna Auto. It's had a K&N filter and I checked the MAF at the same time which was clean as a whistle. There is some oily sooty deposit under the turbo pipe but I can't find a leak. I did a soft reset today and that seems to have improved matters somewhat, and I could convince myself it's picking up better too. 'Farting' noise from the near side of the engine bay is still there though (as discussed here).
I have cleaned the MAF, Ecu reset, but seems to smoke more than ever, must be something simple that ive missed, still does 30mpg and goes like a train, just smokes like one too!
Any further suggestions much appreciated, i would love to be able to give it some welly without all the soot behind
Any further suggestions much appreciated, i would love to be able to give it some welly without all the soot behind
How clean is your maf?
Assuming a clean air filter and healthy injectors, your maf is the smoke controller. Assuming you have bought maf cleaner give it a really good blast through all the holes and be prepared to use half the aerosol can on one clean.
Did you put injector cleaner in your tank?
Assuming a clean air filter and healthy injectors, your maf is the smoke controller. Assuming you have bought maf cleaner give it a really good blast through all the holes and be prepared to use half the aerosol can on one clean.
Did you put injector cleaner in your tank?
I have now cleaned the maf, all new filters, full engine terraclean and new turbocharger. Ecu hard and soft resets, injector cleaner and EGR blank, no fault codes showing on full bosch diagnostics, but she still smokes!
Some mechanics say they all smoke, and all say navaras will always be trouble. I just cant find an honest garage that knows what they are doing and can troubleshoot the problem.
There must be an answer somewhere?
Some mechanics say they all smoke, and all say navaras will always be trouble. I just cant find an honest garage that knows what they are doing and can troubleshoot the problem.
There must be an answer somewhere?
Navaras will always be trouble, in other words go away and stop bothering me.
My thoughts ...
Boost control, not sure whether your is a vacuum or electronic, but if vacuum the boost control solenoid might benefit from a rinse.
MAF. Not unknown for these to lose their performance, £30 will get a new one so worth getting a replacement if only to rule it out.
Injectors, getting pricey, but you could get them checked by a diesel specialist.
My thoughts ...
Boost control, not sure whether your is a vacuum or electronic, but if vacuum the boost control solenoid might benefit from a rinse.
MAF. Not unknown for these to lose their performance, £30 will get a new one so worth getting a replacement if only to rule it out.
Injectors, getting pricey, but you could get them checked by a diesel specialist.
G
not really, just plug the truck in diagnostics and see what the maf readings are. simples.johnll60 said:
G
i have no idea what you mean, but all you have to do is get a scan tool see what the maf sees in idle then check voltage. in idle and warm up should be 1.6 - 2.0V.landmannnn said:
anything else is money wasting.
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