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Won’t rev over 2k
If you have an early FICM (even though it is an 05 or 06 engine), they have their own individual circuits, so you can get individual injectors dropping out with a bad FICM. A bad logic side to a FICM will still pass the buzz test. Do you have a known good FICM to try? -
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Replacing brake booster, master cylinder, and all lines
My 06 Lariat has the integrated trailer brake controller so the Master Cylinder part number is: 5C3Z-2140-HA -
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Black smoke and surging at idle!
Just so you know, the 85% is a commanded value (generated from ICP actual and ICP desired), and not an actual valve position. -
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Won’t rev over 2k
Could the intake manifold be plugged up (from when the EGR system was active)? Done any tests on the VGT solenoid? -
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Acid in fuel
Might be worth calling these folks: https://polarislabs.com/testing/diesel-fuel-testing/ Good discussion on low pH in diesel fuel in the link below: https://www.government-fleet.com/157049/how-to-maintain-stored-diesel-fuel -
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HELP: Dash Gauges Lose Power but truck still runs: WITH VIDEO
Good suggestion. Thanks. -
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HELP: Dash Gauges Lose Power but truck still runs: WITH VIDEO
Relay 306 is the Delayed Accessory relay. Relay 301 is the Trailer Battery Charge relay. Throw that one into the slot for Relay 306. -
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HELP: Dash Gauges Lose Power but truck still runs: WITH VIDEO
He has had plenty of suggestions and was logged on earlier today. Ball's in his court. -
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HELP: Dash Gauges Lose Power but truck still runs: WITH VIDEO
For my fix, I've been living with the occasional trick of turning on the headlights for quite some time. Now I have a lazy door lock. One of these days I am gong to have to spend some money. Good to know another option for cluster repair. CircuitBoardMedics (SC) was the only one I had heard... -
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HELP: Dash Gauges Lose Power but truck still runs: WITH VIDEO
Nice post 6.0Tech. My thoughts are that the same issues that plagued the FICMs could be at play here as well - ie poor soldering because of the lead-free solder used. Several circuit boards do not seem to do well in situations of high vibration or frequent "jarring" from poor road condition... -
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HELP: Dash Gauges Lose Power but truck still runs: WITH VIDEO
The other possibility would be the accessory delay relay (which is in the fuse box) -
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HELP: Dash Gauges Lose Power but truck still runs: WITH VIDEO
When that happens, turn on the headlights and see if that restores the function. If so, it is the battery saver relay that is soldered into the circuit board of the HEC (Instrument Cluster) -
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rotella t6 5w40
230k miles on my 6.0L - all of it has been smooth operation. I used Rotella 5W40 for about 6 oil changes (5k intervals) without any issue. The wear metals were fine at this change interval. The Rotella T6 does shear significantly more than the Mobil 1 TDT 5W40 and Mobil Delvac 1 5W40, but were... -
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Blown HG, o-ringed and studs...
I only asked about water flushing to see if he was less than 50% coolant concentration. Even though it has nothing to do with HIS heads leaking, it is something to take note of. You can not get to a 50% coolant concentration after a water flush with 50% coolant. I agree that you can run lower... -
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Blown HG, o-ringed and studs...
You might consider running an uncompensated cylinder contribution test or a cylinder leakdown test. it just might give you some indication of which head is the worst. -
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Blown HG, o-ringed and studs...
Did you do any flushing with water? If so, you can not get back to 50% with the pre-mix stuff due to how much coolant that will always stay in the block. Anyway, it probably isn't the issue, but just something to think about. -
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Blown HG, o-ringed and studs...
Well said! Also, the Ford spec of .002 might even be a little too generous for reliability. -
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Blown HG, o-ringed and studs...
LONG shot, but - could you possibly have too low of a concentration of coolant? That might make it boil on localized surfaces. -
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Blown HG, o-ringed and studs...
Sorry, but I have to agree. I don't see how you could keep from taking off too much metal (uneven surface) on your 6.0L block deck with that. The curse of too few bolt holes (or stud holes).
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Will a 1996 F6TZ-9A451-F engine wiring harness work on a 1997 f250 HD ?
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