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Haven’t ignored basics, just fixing one thing at a time. I can’t help there is a ton wrong haha.
The FPDM was faulty based on live data. When it just shows 40 and never fluctuates anywhere, including at higher loads compared to idle, then it’s not doing its job. This could also be the pump not outputting more, but that was verified by jumpering it and check fuel pressure. Now I see the fluctuations you should see with load.
As for the shot work, I only recently discovered the oil pan. No steady leak, no oil beneath the truck. Got under to inspect things and saw oil all around the pan. Oil was also low, but not burning. So I figured I’d check the bolts on the pan. I also checked the repair history the previous owner had on it since he always brought it to shops. Less than 10,000 miles and when I checked the bolts they were all loose. Used the three step process and they didn’t even pass the second stage.
I plan on checking the other fuel injectors since that’ll be quick and easy. Once I can dedicate a day I will check more in-depth stuff. The problem is I squeeze an hour here and an hour there right now. With other things verified wrong, I fixed those things and checked other things while there.
Just looking for a second opinion on next steps. I am honestly shocked the shops that worked on this missed most of what I’ve found. I guarantee these issues have been there for a bit. Could be mistaken, but I’m afraid I’m not.
guess we can agree to disagree whether plugs/coils/boots/springs is a basic step (thing to check).
Fpdm doesn’t set the targeted psi level, it’s the conduit for turning on and off the pump. So I’m confused how it could be failing, yet still facilitate maintaining a 40 psi while running.
Never said plugs and coils weren’t a simple step, just haven’t gotten to them yet. I pulled the rail last night for other reasons, and didn’t have time to pull the other rail. Haven’t checked plugs yet because pulling all eight would take some time and I haven’t had the time. The other parts were for sure bad, so I opted to replace those bad components. I still plan on pulling all the plugs. No sense in pulling the COPS if I’m going to pull plugs later.
If the FPDM only gives out 40psi and nothing more, then there is an issue since it should at times be higher. Hence where the problem is. Not trying to be rude or anything, just stating that it should at times read higher, and it didn’t. Tested the pump and pressure was good. Replaced the FPDM and now it gives pressure higher than 40 when it is supposed to.
Never said plugs and coils weren’t a simple step, just haven’t gotten to them yet. I pulled the rail last night for other reasons, and didn’t have time to pull the other rail. Haven’t checked plugs yet because pulling all eight would take some time and I haven’t had the time. The other parts were for sure bad, so I opted to replace those bad components. I still plan on pulling all the plugs. No sense in pulling the COPS if I’m going to pull plugs later.
If the FPDM only gives out 40psi and nothing more, then there is an issue since it should at times be higher. Hence where the problem is. Not trying to be rude or anything, just stating that it should at times read higher, and it didn’t. Tested the pump and pressure was good. Replaced the FPDM and now it gives pressure higher than 40 when it is supposed to.
it’s your truck, so by all means do as you wish. But pulling one plug/coil/boot//spring to (sample) determine what parts were used, general condition, and if torqued properly doesn’t take long. You’d gain good intel from that sampling.
Fpdm: Post 3 gave accurate description/info. And fpdm does not directly ‘set’ the psi (the pcm does). But as far as preventative measure, fpdm isn’t a bad one to throw at it.
Agreed, pulling one isn’t time consuming. However, since I found other issues and was taking care of those as I found them I had not pulled a plug yet. My intention was to pull all eight since I don’t know the work that was done. I’d hate to pull one and it be done right and then just assume the rest were good. Much like the oil pan. I could have assumed since it was a shop, I even think maybe a Ford shop but I could be mistaken, that it was done right but I was under there and it was easy to check. I’ll get to the spark plugs, I just have multiple projects going on and this is prioritized over some others that I’d prefer. Like pulling my motorcycle out for the season. That’s taken a back burner to everything else. I’d say I’d pull the plugs this weekend, but my oldest is graduating. However, it’s a holiday weekend and it might provide the needed time to prioritize it.
Also, I know the FPDM doesn’t set the psi. However, it was limiting it to 40psi max. That is not accurate. I’d have to go back in the tune but I think it calls for like 60psi or something like that under higher rpm and higher load, maybe WOT. Again, I didn’t memorize the table, but when my truck is maxing at 40psi and it should make more, that was an issue. After replacing the FPDM it now makes more than 40psi and does what it’s supposed to. So I’d say it was faulty.
Well I found the problem. Brand new Ford Phaser with just over 14,000 miles was faulty. Other stuff was faulty and that was fixed, but the main issue I finally had time to look into and pull the valve cover.
It was not an oil pressure issue. It wouldn’t do this as long as you were below 3,000 rpm. The phaser was basically starting to fall apart.
I should also clarify that I wasn’t WOT. I reference that whenever you get on it some. That was the only time it would break. If I just drove normal it wouldn’t do anything and there is always a time where you’ll need to give it some gas. I was logging with HpTuners and you can’t log what’s wrong if you aren’t replicating what’s wrong.
Basically what would happen is in normal driving it would drive perfect. Any little extra beyond that (above 3,000 rpm) it would cause the cam to move when it shouldn’t. I tuned it to 0 so I could monitor both sides and see what it was doing. Driver side stayed perfect at 0. Passenger side did not by a lot. It would stay like that until you shut it off. Pressure would drop and it would allow the phaser to return to 0. Because the phaser was failing, it wouldn’t fail except at higher rpm.
Many, many of the posts in this forum (and others) are open ended. Problem stated, solutions suggested but no closure. Thank you for posting feedback that allows future readers to understand and consider your experience with the issue..
I should add that I tested it and it fixed the last problem. Now just a couple minor fixes the truck needs, but nothing that impacts anything.
My cam angles were great, but I noticed a slightly higher variance on the passenger cam that I didn’t like. Above 3000rpm (approximately) it would drift off and sometimes return back when rpm’s dropped, but most of the time it wouldn’t.
Shut the vehicle off and it would start fine almost always.
drive below 3000rpm and it would drive all day perfect. I didn’t actually test all day but did test it for close to an hour.
What didn’t add up was that oil pressure should go up and should cause the cams to stay.
What also didn’t add up is if timing was off then it shouldn’t be able to be driven for an hour with no issues but then go over 3000rpm and have issues even at idle. It just didn’t add up to me.
I was hoping to avoid pulling it apart, but I knew it was going to have to happen I just needed the time. I fixed the other issues in hopes that it somehow miraculously fixed this issue knowing it wouldn’t. I just couldn’t put my finger on what the issue could be. I was an aircraft electrician on a communications jet in the Navy and had my fair share of stumps.
I verified the Ford parts and all and it was for sure all new and a Ford phaser. Failed with less than 15,000 miles and in what I’m going to guess is a fluke incident. I haven’t seen others with this specific issue, and I don’t recall anyone saying the phaser failed at the spots mine did. However, I could be wrong. I hope this helps others though. If anyone has questions they can feel free to ask.
I like to ask questions even if I think I know the answer. It helps me determine if I missed anything, didn’t think of something, maybe just wrong on what I think, etc. So thanks everyone, it still helped a ton to get the feedback everyone put.
