[bigblueskies98]

My name is wayne, and i am a dieseljunkie... I just got the truck in my signature. very happy with it! I came into the PSD from a cummins. In all honesty the cummins is a great machine but its wrapped in a Dodge, so well you know! Waste of a good powerplant! Anyway, i picked my new toy up lastnight and on the way home in top gear i put it into #4 pos on the chip and gave her hell! 60- 90 mph was mind boggling fast, but when i got to 90 or so the check engine light came on.... truck runs great still , the pyro went to just about 1250-1300(pre turbo) i let off, pulled over, let it spool down for about 5 mins and shut it off. it fired right back up and the light was off. i have not since been to get it checked or has it come back on. does this happen sometimes? I am sure with the chip some things get out of perameter sometimes and possibly fool the ECU. I will get it checked monday. Any ideas?? Still runs great, with out incident. I was on another forum and they mentioned overboosting. With my old cummins you didnt have to look so much at the boost level as it never got out of hand(remember non electronic mechanical pump), i always looked more closly at the EGT as i was doing out of habit last night. my question is, is it possible i did any damage? or would it have made its self apparent at the time? I was reading about stretched head bolts, blown gaskets and grenaded turbos.Got me worrying... I know nothing is wrong at this time, i guess my question is are these things that will happen right then or happen over repeated abuse? I will prob upgrade to a Ball Bearing turbo, should i do a head gasket job on it as well. it has 160k miles on it.

one more question for this post. when these head gaskets usually blow do they go between cylinders or into the waterjacket?


Wayne

i must seem paranoid but the engine in this truck is worth more than 90% of the vehicles i have ever owned.

 

[STurbo90]

With the setup you have,

"Probable scenario" is you are running out of High Pressure Oil at the top end, setting the check engine light.

Do a search for "big oil" and that will tell you what you probably need to mod next.

 

[bigblueskies98]

nothing relavent came up that i saw. that makes sense though i guess the injectors since they are bigger, need more oil for high end actuation from a system designed for actuating the smaller ones...


wayne

 

[RickHredf250]

[ QUOTE ]
With the setup you have,

"Probable scenario" is you are running out of High Pressure Oil at the top end, setting the check engine light.

Do a search for "big oil" and that will tell you what you probably need to mod next.

[/ QUOTE ]

160's might run it out of HPO if the pump is not quit, well like new.
Stock is around 94 CC's so you are putting ah its too late to do the math, you do it!
Anyway, congrats and good luck!
Rick H...

 

[DIESELDUTTON]

Mine did the same thing when I went for a test drive with Brian from BTS after my new tranny install and thats what he said. I was in my #6 position 120 (I think) I floored it /ubbthreads/images/graemlins/eek.gif and when I got to about 90mph and got a cel, truck ran fine but I shut it down and restarted and it was good to go, one of my next upgrades will be a superduty pump or big oil right after I install the 6.0 intercooler thats been in the garage for 3 months or maybe I will install the fuel system first, o'yeah I should have my dana 60 this week maybe I'll do that first /ubbthreads/images/graemlins/confused.gif /ubbthreads/images/graemlins/biggrin.gif get my point once you start you cant stop but I will never get rid of this truck it is the best truck I have ever owned. When I am done with the mods my son will be getting ready to drive (about 4 years)and it will be his and maybe by then the 6.4 we be proven or not and I can get a newer truck, anyway welcome to the site and Good Luck.

Frank

 

[Larry S.]

I back the low HP oil diagnosis. Mine did the same before the SD HPOP. I am not a head gasket expert but from what I have gathered you should not have a head gasket worry with the set up you have. The general rule I have heard is the gaskets will hold up to 40 pounds boost and/or 400 RWHP. The gaskets fail due to stretching of the head studs and to fix the problem new after market studs are needed. If I am wrong somebody correct me.

 

[bigblueskies98]

okay i am feeling better, i did take the intake tube off and checked my turbo for endplay, seemed fine, was about the same as on my old Drops Oil Drops Grease Everywhere(DODGE) with the Cummins in it. I just checked it incase of overboosting the turbo and perhapse putting some un needed wear on it. Anyway, prob not needed since the consensus seems to me more likley the HPOP not keeping up with the injectors. So far i am VERY happy with the truck. Overall whould these OBS powerstroke trucks be seen as a reliable truck or a high maintenance lady... either way i am in, i have been waiting for about 10 yrs for one and they are just now getting fairly reasonable in price.

wayne

 

[squeeks]

if you keep up on maintenance, and dont let your gauges get outa hand that 7.3 is a good motor, i got just under 320,000 miles on my truck with the original motor, still running strong need to get a new HPOP like you thou

 

[Jcart]

Hey Wayne,

You may want to get the Diagnostic trouble code(s) pulled to see what set off your Check engine light. Maybe just an overboost and a regulator in the Map line set to 22 psi will fool the PCM so you do not get a cel. Just a thought.....

If you require a new HPOP get a Super Duty one (Ideally big oil would be better I'm sure...). I just purchased a new one from International that fits an 2003 superduty. pumps more oil....and was significantly less dough then FMCO.

Congrats on the shift.....Drops Oil Drops Grease Everywhere(DODGE)...Thats funny....

jrc

 

[Brians97F250Crew]

won't you also get a CEL for over boost of the MAP if you've got big squirts and a chip??

 

[BlueMule]

[ QUOTE ]
won't you also get a CEL for over boost of the MAP if you've got big squirts and a chip??

[/ QUOTE ]

Nope, not on an OBS.

 

[bigblueskies98]

yeh i am really enjoying this PSD, i have yet to tow with it though.

wayne