Bad Turbo ?

Jlyl248 · May 31, 2012

Have codes p2263 and p2563 and called a shop today to get some input and schedule an appointment. They said by the sound of it and with the codes it could need new turbos. What do you guys think?

Dzchey21 · May 31, 2012

Could be the back pressure sensor our stuck vanes in the turbo. Could also be s boost leak.

Dzchey21 · May 31, 2012

Actually after looking i'm almost going to bet that the vanes are stuck in the vgt housing. There is a chance the actuator failed. Easy way to check is to move the lever on the turbo by hand it should move easily and return to the full open position on its own.

Jlyl248 · May 31, 2012

It moved on key on and not running. Just this being my first diesel, the vgt is the first turbo right or is it the actuator? I've seen vgt actuator and turbo actuator ...any difference?
Thanks

Dzchey21 · May 31, 2012

Same thing. Do you have a tuner it anything to monitor stuff with?

With the key off move that actuator by hand and see how it feels.

Jlyl248 · Jun 1, 2012

Yes it's on the spartan 275. Now moving the actuator, just push the bar and it should come back or has to be pulled back? Thanks

Dzchey21 · Jun 1, 2012

Jlyl248 said:
Yes it's on the spartan 275. Now moving the actuator, just push the bar and it should come back or has to be pulled back? Thanks

I think it has to be pulled to the front if the truck if my memory is correct. Either way with the key off it should move super easy

Also watch vgt duty cycle key on engine running it should be 95% when cruising it should vary but stay around 50%

Also look at exhaust back pressure key on engine off should be 14.7 if your at sea level lower if your higher. Cruising back pressure should be about 15 psi higher than boost