I know this sounds strange but I had to change the turbo on my pathfinder. now when I am towing the pathfinder is dead as anything below about 1900rpm then it spools up and is normal. I am thinking I need a tweek on the vnt stop screw. Can anyone confirm with a 2.5 dci engine at what rev range does your pathfinder boost from.
I had a feeling my old turbo boosted at a lot lower rpm.
R51 Diesel Turbo Help
Moderator: volvite
Well, I do have one 
First, how do you know turbo is dead? Might be boost control actuator. Also might be some tube broken, or intercooler clogged. Also air intake valve, or MAF sensor, or...many other things.
I'd inspect turbo before making any final decision.
It's some dismantling, but not too much to get to charge-side of turbo. Remove air intake hose from air filter, remove upper coolant hose from engine to radiator, put aside some small vacuum hoses...and you got to boost side of turbo.
Remove 2 screws holding turbo air exhale pipe and you will see compressor wheel with blades.
See if there's no engine oil on the blades, that they can spin freely and nothing is bent. If there's no extensive axial play, your turbo might still be OK.
First, how do you know turbo is dead? Might be boost control actuator. Also might be some tube broken, or intercooler clogged. Also air intake valve, or MAF sensor, or...many other things.
I'd inspect turbo before making any final decision.
It's some dismantling, but not too much to get to charge-side of turbo. Remove air intake hose from air filter, remove upper coolant hose from engine to radiator, put aside some small vacuum hoses...and you got to boost side of turbo.
Remove 2 screws holding turbo air exhale pipe and you will see compressor wheel with blades.
See if there's no engine oil on the blades, that they can spin freely and nothing is bent. If there's no extensive axial play, your turbo might still be OK.
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Wild Thing
- Posts: 6
- Joined: Sun Mar 17, 2013 5:32 am
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Wild Thing
- Posts: 6
- Joined: Sun Mar 17, 2013 5:32 am
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