Engine sputter 35D

[meisser79]

Hey,
I have a new to me 2015 35D 160,000 km
When I decelerate with my foot on the throttle just slightly the engine sputters, if i take my foot right off the gas, there is no problem, and when i accelerate there is no problem!

I have ordered a new fuel filter, should be here tomorrow, any other suggestions?

Thanks

JM

[XxBBVTMxX]

Run a full diagnostic with ISTA or Foxwell NT530 to see what's wrong with your vehicle..

Then run an injector smooth running test to see if you're having injector problems. Run pumps and fuel test as well. Test your O2 sensors.. I mean, it can be several things or it can be one.

You can google or search around here on how to do those.

Also, at that mileage, did they/you knock out services to the engine (CBU, Trans & Diff oils, …

[meisser79]

Thanks for the suggestions!
Im going to do all those tests when it warms up! Currently -27C out side! I think that may also have something to do with it! I did change the Fuel filter, it was original at 160,000 km!

Is there a way to test the fuel heater on the 35d?

J

[XxBBVTMxX]

Originally Posted by meisser79

Thanks for the suggestions!
Im going to do all those tests when it warms up! Currently -27C out side! I think that may also have something to do with it! I did change the Fuel filter, it was original at 160,000 km!

Is there a way to test the fuel heater on the 35d?

J

Yeah, look through ISTA. Search "Fuel Filter" and you can probably find it. Or look for the actual name of the heater on RealOEM and type that in.

Best way to find the things you want to do is to type in your VIN and search for the tests. Then write down what you wrote to find them or how you found them. Then, go connect to your vehicle. That way, you're not just sitting there at your vehicle and you can find stuff from the comfort of your home.

But I'm almost sure that if there was something wrong with your heater the vehicle would probably tell you or you'd get a CEL. Also, remember that the diesel that's not used by the injectors returns back to the tank, therefore heating it up too.

[meisser79]

I did a whole series of tests, the O2 sensor before the CAT has sooting, so I'm going to clean that out. But the major thing is the Swirl Flaps are not working! They are stuck at 0! I couldn't even get through a full test. Im going to research if that may have something to do with it!

Thanks for your help!

J