Engine/Transmission (1998.5 - 2002) Do Diesels Ping?

[chazj]

Just finished crossing the Continental Divide. Elevation around 7000 ft.

Speed was @75mph, EGT registering @ 1000 degrees, Boost @ 15lbs and Fuel Pressure (with the new intank pump) hovering around 1lb.



Stepped on it to get around a big rig and heard the engine start to ping as I approached 80mph... just as a gasser would. Fuel pressure was still above "zero" psi. As soon as I backed-off a bit the noise went away.



Was the VP44 trying to tell me something? Or was this a normal response while climbing to this altitude given the above parameters?



Appreciate any feedback.

 

[JTCash]

Everything I've read has said to shut it down at or below 5#... Damage has been done... Again as I understand it. . Lift pump! Change it... I'm going to the FASS I think... Just have to save a little more.



R/



Jim

 

[Tcolesanti]

Definately need more fuel pressure but the pinging will happen, especially with the thin air.