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Deleted, SOTF and Level 5 = BAD IDEA

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#101 ·
I just saw another guy on FB with a grenaded engine as well. I am starting to get a little bit nervous about this engine, although I know there are plenty running trouble free (including mine so far, fingers crossed). I did do everything I could to prolong engine life, including deleting, oil bypass, good oil, monitor EGTs, etc. This engine does run hot though. My EGTs regularly get over 1000 at part throttle, and sometimes over 1200. I have seen as high as 1400 for a few seconds. All of this unloaded. I am towing my 13000 pound fiver next month all the way to Colorado going through the Raton pass (7835 feeet up) and into Colorado Springs. We will see how hard the engine works (EGTs and engine temps). I swear if this engine grenades a 5.9 or 6.7 will find its way in. I cant afford to write off a truck.

Sorry to hear the bad news, good luck with this issue. As an aside, Nissan as a company is garbage. My paint is peeling off (2018) like a MAACO special and they refuse to paint the truck. The guy at Nissan actually told me "well, that's Texas roads for you." I didnt expect them to come through for you, but was hoping.
 
#103 ·
roughneck9725 said:
I just saw another guy on FB with a grenaded engine as well. I am starting to get a little bit nervous about this engine, although I know there are plenty running trouble free (including mine so far, fingers crossed). I did do everything I could to prolong engine life, including deleting, oil bypass, good oil, monitor EGTs, etc. This engine does run hot though. My EGTs regularly get over 1000 at part throttle, and sometimes over 1200. I have seen as high as 1400 for a few seconds. All of this unloaded. I am towing my 13000 pound fiver next month all the way to Colorado going through the Raton pass (7835 feeet up) and into Colorado Springs. We will see how hard the engine works (EGTs and engine temps). I swear if this engine grenades a 5.9 or 6.7 will find its way in. I cant afford to write off a truck.

Sorry to hear the bad news, good luck with this issue. As an aside, Nissan as a company is garbage. My paint is peeling off (2018) like a MAACO special and they refuse to paint the truck. The guy at Nissan actually told me "well, that's Texas roads for you." I didnt expect them to come through for you, but was hoping.
Click to expand...
Yeah if mine dies a 5.9 will find its way in there.
 
#108 ·
roughneck9725 said:
I just saw another guy on FB with a grenaded engine as well. I am starting to get a little bit nervous about this engine, although I know there are plenty running trouble free (including mine so far, fingers crossed). I did do everything I could to prolong engine life, including deleting, oil bypass, good oil, monitor EGTs, etc. This engine does run hot though. My EGTs regularly get over 1000 at part throttle, and sometimes over 1200. I have seen as high as 1400 for a few seconds. All of this unloaded. I am towing my 13000 pound fiver next month all the way to Colorado going through the Raton pass (7835 feeet up) and into Colorado Springs. We will see how hard the engine works (EGTs and engine temps). I swear if this engine grenades a 5.9 or 6.7 will find its way in. I cant afford to write off a truck.

Sorry to hear the bad news, good luck with this issue. As an aside, Nissan as a company is garbage. My paint is peeling off (2018) like a MAACO special and they refuse to paint the truck. The guy at Nissan actually told me "well, that's Texas roads for you." I didnt expect them to come through for you, but was hoping.
Click to expand...
did you buy it used?
 
#110 ·
After doing my own homework I've opted to run the lower temp thermostat made by mishimoto. The trucks have a 200* opening temp which is very high imo. The mishimoto one opens at 180*. Even on the big 6.7/5.9 Cummins a 180* would come factory for the 5.9 and the 6.7 runs a 190 that should be swapped to the 5.9 180.

20* operating temp at the thermostat can mean significant difference internally which seems to be the root issue as being heat soak.

A $63 thermostat is cheap peace of mind.
 
Discussion starter · #111 ·
There're some updates, but I'm gonna shut till this is resolved.
 
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#113 ·
roughneck9725 said:
I just saw another guy on FB with a grenaded engine as well. I am starting to get a little bit nervous about this engine, although I know there are plenty running trouble free (including mine so far, fingers crossed). I did do everything I could to prolong engine life, including deleting, oil bypass, good oil, monitor EGTs, etc. This engine does run hot though. My EGTs regularly get over 1000 at part throttle, and sometimes over 1200. I have seen as high as 1400 for a few seconds. All of this unloaded. I am towing my 13000 pound fiver next month all the way to Colorado going through the Raton pass (7835 feeet up) and into Colorado Springs. We will see how hard the engine works (EGTs and engine temps). I swear if this engine grenades a 5.9 or 6.7 will find its way in. I cant afford to write off a truck.

Sorry to hear the bad news, good luck with this issue. As an aside, Nissan as a company is garbage. My paint is peeling off (2018) like a MAACO special and they refuse to paint the truck. The guy at Nissan actually told me "well, that's Texas roads for you." I didnt expect them to come through for you, but was hoping.
Click to expand...
If your egt's are that high not towing then something is wrong with your truck. Your egts shouldn't be over around 550 unloaded. Hell towing 9k lbs I haven't seen over 950 under very hard acceleration.
 
#119 ·
I'm just curious if it's a difference between different tools ezlynk vs scan gauge throwing off weird numbers, not 100 percent sure where all the probes on this truck are because I planned on tapping the manifold and running a standalone pyro to get accurate numbers.
 
#120 ·
DTF said:
I'm just curious if it's a difference between different tools ezlynk vs scan gauge throwing off weird numbers, not 100 percent sure where all the probes on this truck are because I planned on tapping the manifold and running a standalone pyro to get accurate numbers.
Click to expand...
Being as both read off the obd2 I dont think there can be a different reading?
 
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