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Join Date: Nov 2011
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I cleaned up my oil mess from last night and replaced the oil that had spilled out. I primed the system and the truck started after 10-15 seconds. While I wasn't impressed with that, it was the first start (well kinda second start given the start last night that ended up putting oil all over the garage floor). I then let it sit as I retrieved my computer from the house (a few minutes), and came back. After sitting a few minutes, the truck took significantly longer, and a few tries, to get it to start. Once it was started, I performed some tests...
IPR (during Idle) = 40%
ICP climbed from nothing to 500 somewhat slowly then started and then maintained about 540ish while idling
ICP Voltage was about 1.7ish
Everything looked decent, while it was running. I also performed a Power Balance test and, while idling, everything looked nice and flat(ish). It looks like #3 was a little bit stronger and #5 a tad weaker than the rest.
I shut it off, after running a good 5 minutes. And let it sit for a few minutes. Went to start it again and it took another 20 seconds to start.
Something I noted:
- Before I had this problem, the Oil Gauge would indicate I had base oil pressure almost immediately (a few seconds). Well before the glow plug indicator extinguished. Now, the oil pressure gauge only rises, right before the engine starts. I've had the oil filter out and tested for Base Oil Pressure as well and it seemed to be okay but I don't have a real good feel for how long it should take to fill the reservoir.
I do have a question:
I've done the air test and have reported I hear air coming from, what seems to be, the #3 injector but I'm not an expert here. When the STC fitting is bad, I believe that is indicated by the air leak from within the valve covers. But Where under the Valve Covers? If it could be anywhere under the valve covers, then what I "think" I am hearing coming from Injector #3, could very well be the STC fitting issue.
I guess I may have found my answer
In the Ford Procedure TSB 08-18-6 it says "if is isolated to the back of the engine, proceed to replace the STC fitting. "If it is detected under the valve cover, proceed to Under Valve Cover Air Leak Test Procedure". In the "Under the Valve Cover..." procedure it says... Listen for air leaks around the fuel injectors, D-Rings and Fuel Rail Plugs at both high pressure oil rails. If leaks are found repair as necessary".
I guess that indicates, based on what I am hearing, that the problem is neither the HPOP nor the STC fitting but rather something under the valve cover (i.e. Dummy Plugs, Stand Pipe, and Injector Seals)…
2005 F350 SRW 4x4
- Sinister Diesel EGR Delete
- SCT Tuner
- ARP Studs
- Sinister Diesel Coolant Filter Kit
- Updated Oil Cooler
- Garrett Powermax Turbo
- BD Diesel Up-Pipes
Last edited by bgiebels; 04-16-2019 at 06:22 PM.