6.0 Leaker issue, Please help.
Thread Starter
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Trailering
Joined: Jan 2023
Posts: 15
Likes: 1
From: The Mitten
6.0 Leaker issue, Please help.
Hello all,
spend the last 3 months freezing my backside off trying to figure out why my Ex won’t fire up. It started with cooked wires to the IPR, replaced the wires, new IPR, new ICP, air tested HPOS(compressor only good for 120psi, held 80psi overnight). Put it back together and it tries to start, takes a bit to show low pressure oil on idiot gauge(15-20 seconds crank to build oil pressure for ficm to fire injectors). Cracked loose the engine fuel filter cap and it seemed to have pressure when loosened, and it was over half full. Any help would be greatly appreciated
spend the last 3 months freezing my backside off trying to figure out why my Ex won’t fire up. It started with cooked wires to the IPR, replaced the wires, new IPR, new ICP, air tested HPOS(compressor only good for 120psi, held 80psi overnight). Put it back together and it tries to start, takes a bit to show low pressure oil on idiot gauge(15-20 seconds crank to build oil pressure for ficm to fire injectors). Cracked loose the engine fuel filter cap and it seemed to have pressure when loosened, and it was over half full. Any help would be greatly appreciated
Laughing Gas
Joined: Aug 2010
Posts: 1,049
Likes: 230
From: Amarillo, TX
Do you have the factory oil filter & cap, or is it an aftermarket? 15-20 seconds to build base oil pressure seems excessive. Any codes? 6.0 is also notorious for not liking aftermarket sensors.
Thread Starter
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Trailering
Joined: Jan 2023
Posts: 15
Likes: 1
From: The Mitten
Yes I do, I also have an unused wix cap and filter I picked up the other day just to try it out. I’ve scanned for codes and not seen anything yet. All parts and sensors have been motorcraft from the local dealer(father is retired FMC guy)
Cargo Master
Joined: Aug 2003
Posts: 2,332
Likes: 442
From: Eastern Washington
Aside from checking the oil level and battery voltage, theres not alot you can do besides guess without some way of reading data from these things.
Do you have any way of reading the ICP data? Forscan, Torque, scan tool?
I would confirm ICPv cranking and check fuel pressure.
Where did you apply pressure for the air test?
Do you have any way of reading the ICP data? Forscan, Torque, scan tool?
I would confirm ICPv cranking and check fuel pressure.
Where did you apply pressure for the air test?
Thread Starter
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Trailering
Joined: Jan 2023
Posts: 15
Likes: 1
From: The Mitten
I went over the harness pretty well with a meter. After the long crank to get oil pressure on the idiot gauge and enough on the CTS3 (IPR pressure) it tries to start, as long as it’s cranking it kinda runs until I left off the key. I read on another post about diluted oil from fuel, I’m going to change the oil and use a Wix cap and filter I had around.
Thread Starter
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Trailering
Joined: Jan 2023
Posts: 15
Likes: 1
From: The Mitten
Aside from checking the oil level and battery voltage, theres not alot you can do besides guess without some way of reading data from these things.
Do you have any way of reading the ICP data? Forscan, Torque, scan tool?
I would confirm ICPv cranking and check fuel pressure.
Where did you apply pressure for the air test?
Do you have any way of reading the ICP data? Forscan, Torque, scan tool?
I would confirm ICPv cranking and check fuel pressure.
Where did you apply pressure for the air test?
Thanks for the reply. I have forscan on my laptop, but I’m not real savvy on the setup to monitor PiDs. There is also an Edge CTS 3 on the dash. Oil lever is good, but could use to be changed. I picked up a Wix cap and filter, as I always change oil filters between oil changes. I have an air test kit from a friend who is a great diesel mechanic, it allows IPR test and ICP test. Both locations held 70-80 psi overnight, compressor only good for 120 psi. Just to clear it up, mine is a late build 2005 Ex, with newer Fomoco oil cooler. Thanks again for the help.
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Cargo Master
Joined: Aug 2003
Posts: 2,332
Likes: 442
From: Eastern Washington
I've had a slow crank cause a hard start like that. Whats your cranking RPM? Cranking voltage?
If you can, watch ICP on the CTS. It should build up over 1000 within a few seconds of cranking.
When I had a leaking STC fitting it would take 20+ seconds to build ICP.
If you can, watch ICP on the CTS. It should build up over 1000 within a few seconds of cranking.
When I had a leaking STC fitting it would take 20+ seconds to build ICP.
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Thread Starter
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Trailering
Joined: Jan 2023
Posts: 15
Likes: 1
From: The Mitten
It takes 15-20 seconds of cranking to build pressure on idiot gauge, as soon as it shows pressure on dash gauge ICP goes up to 1100-1200 psi(on CTS) and stays there while cranking. I’m thinking STC myself as I heard a “pop” at the back of the engine once when I rolled throttle then pop since then I’ve had this issue. I used a stethoscope (for automobile use) while air testing and couldn’t hear any type of air leak
Hotshot
Joined: Apr 2010
Posts: 19,055
Likes: 235
From: Saratoga Springs,UT
20 seconds of crank is a lot to register oil pressure on dash basically having to refill system each time
post picture top engine
how fast does oil filter house take to fill and inspect housing for broken prices at this time
A HPO problem can create a LPO problem and visa versa
scan for DTC
post values for following at KOEO and Cranking conditions
ICPV
IPR%
post picture top engine
how fast does oil filter house take to fill and inspect housing for broken prices at this time
A HPO problem can create a LPO problem and visa versa
scan for DTC
post values for following at KOEO and Cranking conditions
ICPV
IPR%
Hotshot
Joined: Apr 2010
Posts: 19,055
Likes: 235
From: Saratoga Springs,UT
1100-1200 ICP is enough to start 500 psi is the point when PCM. Commands fuel injector to fire
post the following under crank conditions
RPM
CMP/CKP SYNC
FICM SYNC
FPW
FICM VOLT
VOLT
FTE Leadership Emeritus
Joined: Sep 2003
Posts: 12,242
Likes: 758
From: Houston, Texas
Do you have a 2004 Engine or a 2005 engine?
The 2005 engine has an orange-yellow sticker on the passenger valve cover. The 2004 engine has a (I believe) blue sticker.
If you have the round 03-04 pump, you have a lot to check over. The same applies if you have the V4 2005 pump. You'll be surprised what you find "mechanics" do on these 2005 pumps
The 2005 engine has an orange-yellow sticker on the passenger valve cover. The 2004 engine has a (I believe) blue sticker.
If you have the round 03-04 pump, you have a lot to check over. The same applies if you have the V4 2005 pump. You'll be surprised what you find "mechanics" do on these 2005 pumps
Thread Starter
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Trailering
Joined: Jan 2023
Posts: 15
Likes: 1
From: The Mitten
I’ll check next time I can get under the hood, I have a few days of work projects to get out of my way. Be back soon. I pretty sure mine is a 08/05 build date with ICP on passenger valve cover.
FTE Leadership Emeritus
Joined: Sep 2003
Posts: 12,242
Likes: 758
From: Houston, Texas
Originally Posted by GunSlinger66
I’ll check next time I can get under the hood, I have a few days of work projects to get out of my way. Be back soon. I pretty sure mine is a 08/05 build date with ICP on passenger valve cover.
Buy yourself a STC fitting kit from a Ford Dealer. If your EGR cooler is still present, you'll need an EGR install kit too to make sure you don't have any leaks.
Laughing Gas
Joined: Aug 2010
Posts: 1,049
Likes: 230
From: Amarillo, TX
I'd go with a new Motorcraft oil filter & cap. Looks like you've got the taller aftermarket one on there now, which would be consistent with Wix. If you use an aftermarket cap with an OEM filter it can cause oil supply issues...
