romping problem

[Plzstrokeme]

That's the same exact no noise at all that I encountered. I loved it that way and had more noticeable power. It idled so smooth and quiet I was amazed even going full throttle it sounded great. Then shut it off n next day restart and noise, noise, noise. It's starting to piss me off after 1700 dollars worth of injectors and atleast 2 of them sound worst then the originals with 257k miles on them when I pulled them.

I hear ya man. I put a ton of money into mine. Almost everything on the engine is new. Everything except the engine itself. Mine still does it. The only thing i can think to do is pull the valve covers, listen and find out what injectors sound ****ty, swap them with good sounding ones and see if the noise follows. If it does ill know it's the injectors and I can send them back to Rosewood for some love.

I just dont understand how it could have gone quiet and sounded and felt so great. Then the next day its back to rattly ****ty idle. Makes me think a wire is loose or something. I don't know. I'm getting tired of working on it though. I hate doing things twice.

If you figure yours out let us know. Ill do the same if I ever get it figured out.

 

[Bobs 7.3]

I'm gonna pull the covers n check the cylinder/cylinders rocker arms and push rods and check the o-rings and oil spouts by unplugging the harnesses and cranking the enine to build high pressure oil. Change any bad o-rings if any and if any oil spouts leak oil then swamps will get a call . If not then swap number 8 to another cylinder and number 5 as number 5 failed the cct test twice a while back but has been good but noisy like number 8. If those 2 or 1 then fail the test in the new hole I'll let swamps know to make me up however many are screwed up and ship them as I'll have to run these till I get the new ones then replace as I need the truck for work n can't have it down for 2 weeks. They wanted me to send all 8 in but I won't have a job in 2 weeks of having no way to work.

 

[lincolnlocker]

Mine does this exact thing. It sounds like its the closest injector to the down pipe. I'm not sure what number that is. I pulled the valve cover and didn't notice anything out of place. All the injectors were spitting oil and the uvch is new. I upgraded mine to the super duty style and it made no difference. I had a buzz test done and it was all good. My injectors were rebuilt by rosewood 2 years ago. I have replaced all the sensors on the engine. I have noticed that it seems slightly better with 15-40 oil rather than 5-40 but it still isn't right.

I was driving one day and all a sudden it went quiet. I thought the truck died for a second it was so quiet. I drove it home and it sounded and felt great. It idled almost perfectly smooth. I shut it off and when I started it the next day it was loud again. It has never gone quiet again since that 1 time. I almost think its an injector issue but I don't know much about them or if that's possible. The truck has plenty of power and no smoke. Something is not right though. That much we can be sure of. Maybe I messed up an o ring during installation. I really don't know.

I will be following this thread. I hope you figure it out and i can follow in your footsteps. Good luck man.

what oil are you running? have you checked the harnes wires where it lays over the drivers side valve cover?

I'm gonna pull the covers n check the cylinder/cylinders rocker arms and push rods and check the o-rings and oil spouts by unplugging the harnesses and cranking the enine to build high pressure oil. Change any bad o-rings if any and if any oil spouts leak oil then swamps will get a call . If not then swap number 8 to another cylinder and number 5 as number 5 failed the cct test twice a while back but has been good but noisy like number 8. If those 2 or 1 then fail the test in the new hole I'll let swamps know to make me up however many are screwed up and ship them as I'll have to run these till I get the new ones then replace as I need the truck for work n can't have it down for 2 weeks. They wanted me to send all 8 in but I won't have a job in 2 weeks of having no way to work.

same question to you as above.

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[lincolnlocker]

they both definitely sound like a comnection issue somewhere. that or oil is just that ****ty.

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[Plzstrokeme]

I will check the harness.

I am currently running Schaffer 5-40 full synthetic. I have noticed that it sounds a little happier when i run 15-40. I will be going back to schaffer 15-40 my next oil change.

 

[lincolnlocker]

I will check the harness.

I am currently running Schaffer 5-40 full synthetic. I have noticed that it sounds a little happier when i run 15-40. I will be going back to schaffer 15-40 my next oil change.

Schaffers oil is good oil. the 7.3s like the 15w40 way more though.

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[Bobs 7.3]

what oil are you running? have you checked the harnes wires where it lays over the drivers side valve cover?same question to you as above.

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Yep that harness was the first I checked as years ago I did tie it up off the cover as I've read they rub threw but double checked it just to make sure.. I'm running delo 15-40w the old blend before they switched to the ck stuff. I was running rotella t6 and does it with either oil. Ran the t6 for about 7 years with the old stock injectors and never had a problem but figured midas well try the delo switch and see what it did.

 

[Bobs 7.3]

they both definitely sound like a comnection issue somewhere. that or oil is just that ****ty.

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I'm going to get that drivers side vc off this week and do some experiments on o-rings and oil spouts with the main harness disconnected. If there all good then button it back up with new international vc gasket and ford uvch and see how she does. Just waiting on the parts. If number 8 still loud I'm gonna move it to number 4 hole and see if the sound follows and if number 4 then fails the cct test. If it does I'll call swamps for another injector.

 

[Bobs 7.3]

Now it was really wierd this morning. First it started as usual 2 to 3 revolution n took off so I idled it as usual for abut 2 mins then backed up and put it in drive then right before going forward it stalled for no reason. Did this also about 5 months ago twice. Restarted as usual and ran good nothing out of the ordinary, drove about 30 miles stop n go, came home and shut it off. It sat about 3 hrs and had to go back out so jumped in and long crank prob about 6 seconds no start so I let off, cranked faster then usual and sounded like if you were cranking with no spark plugs in a gas engine. No little shaking like it does normally when cranking to start. Tried it again same thing left back off it. Waited about 6 to 7 seconds cranked it and it fired and cranked normally. Let it idle about 10 seconds shut it off n she fired right back up normally. Wth is going on now lol? Wish the injector cups never cracked cause I didn't do anything but preventable maintience for 9 years till those cracked now 1 headache after another since injectors and cups changed. No smoke out the pipe when cranking fast n no start. New black original cps put in about 3 months ago. Ipr cleaned and resealed a month ago and new icp installed. Fuel filters arnt that old. Oil has about 4k miles on it (delo 15-40 the old stuff) I don't get it but I will add when she fired back up and for the next say 40 miles the injectors were quiet as could be with better power and even less smoke taking off and getting up to speed. I love when it runs that way the way it's supposed to run and sound. No loud injectors or anything . Right before I got back home it started to get louder but not as loud as usual.

 

[Bobs 7.3]

I can't see a bad hpop as it wouldn't work then all of a sudden it would. I think either the pump would be bad or not bad right? What about a bad or sticking ipr?

 

[Bobs 7.3]

New problem trucks dead just cranks n cranks. Getting code p1212 and hpop res full.
Hpop-199.5 highest reading while cranking and 14.2 koeo
Ipr-67.3 while cranking and 14.7 koeo.
Would it be o-rings, hpop, ipr, sticking injectors dumping oil, icp or any of these?
I did unplug the icp witch is fairly new and the plug also. Still no start and no oil in plug or sensor connection. Wish I had a ipr that was good just to swap in n try but I dont.

 

[sootie]

deadhead the pump and see what it makes. pressurize each rail with shop air and listen for leaks.

 

[Bobs 7.3]

Not sure how to dead head the pump but to pull the lines off the pump n pressurize them up with the compressor I can manage n will do as soon as I get home. I went out n tried it for ****s n giggles before I just left and bam started normally. I don't get it

 

[dsberman94]

Did you change the ipr? Don't remember if you did that or if you got a new hpop or not.

 

[Bobs 7.3]

Na didn't get to it with the new son being born and other projects. I just let it set for 2 hrs and it fired right off 4 times without a glitch.
Eot-120°
Hpop-644.1 to 645.6 at idle
Ipr- 13.5 steady at idle and highest was 35.2 while cranking then fired off in 3 revolutions.
I did remove the ipr plug and it had oil on it on the inside of the seal on the plug. I do have a little bit of oil in the valley and cannot find anything at all leaking while looking. All fitings and everything dry. I cannot explain the oil in the ipr as the outside is dry and the seal is dry. I cannot picture how oil can get in there. If anyone has an idea I'm all ears. I wish I had a known good ipr to try before spending 200 at the dealer for one.

 

[dsberman94]

I think I've got one in my glove box I'll check Friday when I get back to my truck. There's a good chance that's what it is. If the ipr is starting to go it'll just puke out oil somehow for some reason. That's what mine did when it went. If I have one you can borrow it or just put it on your truck and replace mine. Up to you. I have to go down that way so if it's there I can meet you or drop it off somewhere. When I leave there I'm heading through Exeter and tunkhannock so I can drop it there somewhere too. Pm me if you're interested. It may also be the electrical solenoid portion of the ipr and not the actual valve going bad. Also that's what my issue was. That's why I'm not sure if I have the whole ipr or just the valve pieces in the glovebox.

 

[Bobs 7.3]

Pulled both valve covers no injectors leaking out the spouts with the harness disconnected and cranking and no oil coming from any of the injector top o-rings while cranking and at 586lbs of pressure from the hpop. Plugged the harness back in and she fired right up and all the oil spouts shot the same amount of oil out at idle. Buzz test cleared all 8 injectors great so no electrical side problems. Any suggestions? Looks as either the hpop or ipr. I can't see the hpop working then not working. Can't explain the oil in the ipr not icp plug on the inside of the rubber gasket but dry all over the gasket and oUT side of the plug! Can it get oil internally into the solinoid somehow?

 

[dsberman94]

It's the ipr.

 

[Bobs 7.3]

I'm seconding that one as I can't see how the hpop can work then not work lol. I needed to get the vc off anyhow and check that stuff as the romping everyone was saying o-rings so I ruled them out. Maybie the damn ipr is causing the romping at idle over 150 degree water temp too who knows I guess we'll see. I disassembled the solenoid off the ipr and put the other one I have on it as the plastic on the one I took off slid back and forth inside the metal she'll but the one I put on was tight. Don't know if that would do anything but wth right. Buttoned it all up and she only cranked 5 times and cracked off even with the hpop lines previously disconnected for the shop air test into the oil rails to watch for leaky o-rings too. Ran good for a spin down the highway so i looks to be ordering a new motorcraft ipr tomorrow. Also an adrenaline pump by the end of next month as she has to be on her last leg at 260k

 

[Bobs 7.3]

Plus I noticed when the injectors were quiet today after I finally. Got it to fire up the third try there was alot less smoke taking off and while in it getting up to speed so new ipr and see how it reacts then the adrenaline next month should really clear them up and run them good