Join Date: Sep 2005
Feedback Score: 0 reviews
If you want to track a few things down on your own (before taking it in), you might consider investing in a few things.
The PCM can "de-rate" power if one (or more) of several things happens. High coolant temperatures is one of them. This may or may not be happening to you. There are multiple other things as well. Oil temps might be telling as well!
It would also be good to see what your desired injection control pressure (high pressure oil) is running as compared to the actual ICP (psig), along w/ the IPR %duty cycle. Your FICM could also be acting up, so FICM voltages is helpful information as well.
Without data, you will get only guesses.
For $5 you can download a smartphone app (I recommend ForScan Lite) and then for another $35 or so you can buy an OBDII adapter (WiFi or Bluetooth depending on your phone) and you can read engine parameters and scan for codes. ForScan is a very thorough code reader. It is one of only a few that read most (if not all) of the transmission codes.
Codes and engine data "might" help you, or you could have a more significant issue.
A fuel pressure gauge is also a very good thing to have. Your injectors need 45 psig of fuel pressure at all times. Low fuel pressure is the top cause of failed injectors (which can be very expensive). Problem is that you need a sensor and a gauge to monitor the fuel pressure .... Ford did not ever install a fuel pressure sensor. Obviously a dealership could determine if you have proper fuel pressure.
Just a few things to think about.
06 F250 CC SB FX4 Lariat;ARP studs;OEM gaskets;Banks exhaust;DynaTrac Ball joints;Coolant filter;High-Idle mod;RACCCV6000;JimmiJammers;Ravelco;SynchroMax xfer case;Fumoto valve;Harpooned;CPOhighwayProducts toolbox;tracrac;Fox Weatherboots;Wet Okole Seat Covers;BriteBox;Re-flashed;Quadzilla Recon XZT Fuel Press;Blue FPR spring;DashDAQ;PHP FICM;RiffRaff boots;DCPower270A XP;PowerInverter;Rancho7000's;BPD EGR cooler;One-piece HPOP fitting;D-plugs&standpipes;BPD Billet WaterPump;SCT w/ Matts SRL+;ELC Ultra;DuraTracs
Last edited by bismic; 05-26-2019 at 06:52 AM.