Head studs, now no start.
Thread Starter
|
Senior User
Joined: Mar 2006
Posts: 487
Likes: 0
From: CT
Head studs, now no start.
I did head studs, egr delete, and oil cooler rebuild/replacement. Now i cant get the truck to fire. I have AE icp is 1250.7 if i unplug the sensor and plug it back in, kinda weird. If i do a buzz test all of them buzz at once faintly, then each one clicks once in order, but it sounds nothing like my 7.3. Im not big on 6.0s so any help would be great.
Lead Driver
Joined: Mar 2010
Posts: 5,504
Likes: 256
From: Woodbridge, Ontario, CA
What are we working on? What model year? You say you installed head studs. Are you the owner of the truck, or the tech that did the install? You obviously have access to a scan tool. You need to monitor FICM_L, FICM_M, FICM_V, FICM_SYNC, ICP volts, ICP psi, ICP desired, IPR duty cycle, RPM, SYNC and V-PWR. What readings do you get when it's at key-on/engine-off? What are the above readings doing when you crank the engine over? How about fuel pressure?
Thread Starter
|
Senior User
Joined: Mar 2006
Posts: 487
Likes: 0
From: CT
Its a 2005 F250, its not my truck either.
KOEO
RPM-0
FICM SYNC-0.00
FICM Logic Power-12.50
FICM Main Power-49.00
FICM Vehicle Power-12.50
ICP-10.76
ICP Volts-.26
ICP Desired-0.00
IPR-14.84
While cranking the engine
RPM-153.00
FICM Sync-1.00
FICM Logic Power-11.00
FICM Main Power-50.00
FICM Vehicle Power-11.00
ICP-11.90 But if i disconnect the sensor and plug it back in-1235.70
ICP Volts-0.26
ICP Desired-1255.40
IPR-84.77
KOEO
RPM-0
FICM SYNC-0.00
FICM Logic Power-12.50
FICM Main Power-49.00
FICM Vehicle Power-12.50
ICP-10.76
ICP Volts-.26
ICP Desired-0.00
IPR-14.84
While cranking the engine
RPM-153.00
FICM Sync-1.00
FICM Logic Power-11.00
FICM Main Power-50.00
FICM Vehicle Power-11.00
ICP-11.90 But if i disconnect the sensor and plug it back in-1235.70
ICP Volts-0.26
ICP Desired-1255.40
IPR-84.77
Lead Driver
Joined: Mar 2010
Posts: 5,504
Likes: 256
From: Woodbridge, Ontario, CA
Its a 2005 F250, its not my truck either.
KOEO
RPM-0
FICM SYNC-0.00
FICM Logic Power-12.50
FICM Main Power-49.00
FICM Vehicle Power-12.50
ICP-10.76
ICP Volts-.26
ICP Desired-0.00
IPR-14.84
While cranking the engine
RPM-153.00
FICM Sync-1.00
FICM Logic Power-11.00
FICM Main Power-50.00
FICM Vehicle Power-11.00
ICP-11.90 But if i disconnect the sensor and plug it back in-1235.70
ICP Volts-0.26
ICP Desired-1255.40
IPR-84.77
KOEO
RPM-0
FICM SYNC-0.00
FICM Logic Power-12.50
FICM Main Power-49.00
FICM Vehicle Power-12.50
ICP-10.76
ICP Volts-.26
ICP Desired-0.00
IPR-14.84
While cranking the engine
RPM-153.00
FICM Sync-1.00
FICM Logic Power-11.00
FICM Main Power-50.00
FICM Vehicle Power-11.00
ICP-11.90 But if i disconnect the sensor and plug it back in-1235.70
ICP Volts-0.26
ICP Desired-1255.40
IPR-84.77
Post Fiend
Joined: Oct 2009
Posts: 12,123
Likes: 35
From: N. Fort Worth, tx
this is backed up by the fact that you are only getting .26v icpv.
you dont say if you rebuilt/replaced the oil cooler. But I suspect either M-Chan is correct or you have trashed the ipr valve with debris that got in to the oil system durring repairs.
thanks for pulling and posting all the data that makes it easer for us.
Trending Topics
Thread Starter
|
Senior User
Joined: Mar 2006
Posts: 487
Likes: 0
From: CT
I replaced the oil cooler with the kit from ford, it had the cooler, o-rings ,ect. Before i installed it i vacumed the valley, cleaned it the best i could, and filled it fresh oil before i put it all together. Im not saying something might not have gotten in there, but it was as clean as i could get. Is the 6.0 ipr anything like the 7.3, where i could pull it out and clean it/inspect it?
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Post Fiend
Joined: Oct 2009
Posts: 12,123
Likes: 35
From: N. Fort Worth, tx
it like it only in the fact you can take it out and look at it. not so on the take it apart and clean it though. if there is a hole in the screen thats your isse and its junk if the screen is caved in its also junk, if the screen is more then 50% restricted its still also junk.
Ive doen it more then once too. no matter how much you clean around it sometimes it just happens.
Ive doen it more then once too. no matter how much you clean around it sometimes it just happens.
Senior User
Joined: Feb 2006
Posts: 137
Likes: 3
Harness connectors
Hi. Doing the EGR delete/ Oil cooler rebuilds I have had trucks take as long as 30-45 seconds to fire off, even when adding oil before you put it back together. On the last truck I did I had a "no start". After about 15-20 min od scratching my head (it was 12:00am, and I was hot and tired
) I looked at my AE again and realized I had overlooked ont of the simplest things-- things that are out of sight... out of mind. In the midst of trying to finish the truck and go home to my bed, I had forgot to plug the crank/cam sensor back in on the drivers side of the block
. Its the one you really cant see. Before finding this dumb mistake I had triple checked all my harness connections and my power and was about to pull my hair out. I felt much better after I plugged it in and it fired off after about 3 revolutions. I'm sure You have already checked these things, but everyone at some time or another has over looked the simple things and end up going the long way around only to find the problem was back where you started. good luck
) I looked at my AE again and realized I had overlooked ont of the simplest things-- things that are out of sight... out of mind. In the midst of trying to finish the truck and go home to my bed, I had forgot to plug the crank/cam sensor back in on the drivers side of the block. Its the one you really cant see. Before finding this dumb mistake I had triple checked all my harness connections and my power and was about to pull my hair out. I felt much better after I plugged it in and it fired off after about 3 revolutions. I'm sure You have already checked these things, but everyone at some time or another has over looked the simple things and end up going the long way around only to find the problem was back where you started. good luck
Thread Starter
|
Senior User
Joined: Mar 2006
Posts: 487
Likes: 0
From: CT
Got it to fire today, thanks for all the help guys! I had to hold the key for 55sec, i had a stop watch lol. Only thing now is it still takes a while to fire, 30-40sec. Ive driven it a few miles, everything sounds and feels fine. Just weird it takes so long to fire still. Maybe a leak in the high pressure oil rail idk.
Lead Driver
Joined: Mar 2010
Posts: 5,504
Likes: 256
From: Woodbridge, Ontario, CA
Got it to fire today, thanks for all the help guys! I had to hold the key for 55sec, i had a stop watch lol. Only thing now is it still takes a while to fire, 30-40sec. Ive driven it a few miles, everything sounds and feels fine. Just weird it takes so long to fire still. Maybe a leak in the high pressure oil rail idk.
Senior User
Joined: Apr 2005
Posts: 357
Likes: 0
From: Anchorage, Alaska
The reason it still has long crank times even after a short drive after opening up the high pressure system is because it takes a while to get the air out. Small bubbles compress in the system and dampen the hydraulic pressure needed to actuate the injectors. I have seen guys not drive it and just back it out, customer comes to pick it up and leaves it again saying it still doesn't start.
Go drive it down the highway and get it to full operating temp. 10 to 15 miles works the best. Always do this step to make sure it is working properly after you are finished!
Go drive it down the highway and get it to full operating temp. 10 to 15 miles works the best. Always do this step to make sure it is working properly after you are finished!
Lead Driver
Joined: Mar 2010
Posts: 5,504
Likes: 256
From: Woodbridge, Ontario, CA
And this is exactly the reason why I always ask the service advisor to get permission from the customer to allow me to drive the vehicle home for a night or two after any major repair of this magnitude where the engine has been opened up. This ensures to me that I'M satisfied the vehicle is fixed (no fluid leaks or other issues) before I release the vehicle back to the customer.
Thread
Thread Starter
Forum
Replies
Last Post
Dutch Semi
1994.5 - 1997 7.3L Power Stroke Diesel
4
Aug 20, 2011 06:21 AM
CPUNeck
1999 - 2003 7.3L Power Stroke Diesel
14
May 13, 2010 09:16 PM
