Hard start no matter the outside temps
#32
08-08-2018, 09:19 AM
#33
08-08-2018, 09:22 AM
Thanks for the reply. I drove it today, so I'll let it sit for another day before I drive it again. I'll make sure to check the fuel bowl before I drive it again. I bought the blue spring kit when I bought the truck (8-9 months ago) but never got around to installing it. Maybe I'll do that this weekend.
As far as fuel pressure, should I checking it before starting it? While it's cranking? After it's running? And what range of values should I be looking for?
As far as fuel pressure, should I checking it before starting it? While it's cranking? After it's running? And what range of values should I be looking for?
What aftermarket fuel pressure sensor and gauge have you installed?
#34
08-08-2018, 09:27 AM
Isn't fuel pressure one of the diagnostics that can be measured on most OBDII readers? I have the ForScan but prior to that I had a Scan Gauge II, and it had a line for "FPR" which I assume was fuel pressure.
#35
08-08-2018, 09:42 AM
#36
08-08-2018, 10:27 AM
#37
08-08-2018, 10:38 AM
I never saw you mention your EGR valve status. Is it deleted?
If not, then the P0401 can indicate a failing EGR valve. It can also indicate an issue w/ the EBP sensor or the IAT2 sensor.
Have you fixed glow plug #3 yet?
Then, if you still have an injector #3 code, you must track down if it is stiction, a bad injector, or a FICM issue. It could even be an issue w/ a leak in the high pressure oil system at an injector (as stated above). Since you have good FICM MPower (didn't see anything about Logic Power though), then the only way to test the FICM is to send it in or try a known good one.
Along w/ fuel pressure, I would do a bubble test to see if you have any air bubbles in the fuel with the key on. Remove the secondary fuel filter cap, drain the diesel, fill the bowl w/ the key (do not crank).
You said you only had 1500 miles on the fuel filters, but that really means nothing. One bad tank of fuel, an algae bloom due to water, and then you have pluggage. You can also have a small air leak at the primary fuel filter o-ring or at the WIF drain plug o-ring (and there are other places for leaks as well).
If not, then the P0401 can indicate a failing EGR valve. It can also indicate an issue w/ the EBP sensor or the IAT2 sensor.
Have you fixed glow plug #3 yet?
Then, if you still have an injector #3 code, you must track down if it is stiction, a bad injector, or a FICM issue. It could even be an issue w/ a leak in the high pressure oil system at an injector (as stated above). Since you have good FICM MPower (didn't see anything about Logic Power though), then the only way to test the FICM is to send it in or try a known good one.
Along w/ fuel pressure, I would do a bubble test to see if you have any air bubbles in the fuel with the key on. Remove the secondary fuel filter cap, drain the diesel, fill the bowl w/ the key (do not crank).
You said you only had 1500 miles on the fuel filters, but that really means nothing. One bad tank of fuel, an algae bloom due to water, and then you have pluggage. You can also have a small air leak at the primary fuel filter o-ring or at the WIF drain plug o-ring (and there are other places for leaks as well).
#38
08-08-2018, 10:53 AM
BEST ELECTRONIC FUEL PRESSURE GAUGE INSTALL THREAD:
https://www.ford-trucks.com/forums/1...ch-folder.html
https://www.ford-trucks.com/forums/1...ch-folder.html
#39
08-08-2018, 11:06 AM
I never saw you mention your EGR valve status. Is it deleted?
If not, then the P0401 can indicate a failing EGR valve. It can also indicate an issue w/ the EBP sensor or the IAT2 sensor.
Have you fixed glow plug #3 yet?
Then, if you still have an injector #3 code, you must track down if it is stiction, a bad injector, or a FICM issue. It could even be an issue w/ a leak in the high pressure oil system at an injector (as stated above). Since you have good FICM MPower (didn't see anything about Logic Power though), then the only way to test the FICM is to send it in or try a known good one.
Along w/ fuel pressure, I would do a bubble test to see if you have any air bubbles in the fuel with the key on. Remove the secondary fuel filter cap, drain the diesel, fill the bowl w/ the key (do not crank).
You said you only had 1500 miles on the fuel filters, but that really means nothing. One bad tank of fuel, an algae bloom due to water, and then you have pluggage. You can also have a small air leak at the primary fuel filter o-ring or at the WIF drain plug o-ring (and there are other places for leaks as well).
If not, then the P0401 can indicate a failing EGR valve. It can also indicate an issue w/ the EBP sensor or the IAT2 sensor.
Have you fixed glow plug #3 yet?
Then, if you still have an injector #3 code, you must track down if it is stiction, a bad injector, or a FICM issue. It could even be an issue w/ a leak in the high pressure oil system at an injector (as stated above). Since you have good FICM MPower (didn't see anything about Logic Power though), then the only way to test the FICM is to send it in or try a known good one.
Along w/ fuel pressure, I would do a bubble test to see if you have any air bubbles in the fuel with the key on. Remove the secondary fuel filter cap, drain the diesel, fill the bowl w/ the key (do not crank).
You said you only had 1500 miles on the fuel filters, but that really means nothing. One bad tank of fuel, an algae bloom due to water, and then you have pluggage. You can also have a small air leak at the primary fuel filter o-ring or at the WIF drain plug o-ring (and there are other places for leaks as well).
Thanks for the responses. It is not deleted. Truck is bone stock. I just purchased everything to set up a fuel gauge, so I'll do that and the blue spring upgrade this weekend (hopefully). I'll see if that resolves the issue. If it doesn't, then I'll go on down the list....glow plug, bubble test, etc.
I am by no means a mechanic but the fact that it is tough to get started no matter the temperature, but once you get it started it's 100% fine. Today for example. It was 90 degrees out and has been in the 90s for the past few days. Took 4 cranks for it to get started. I drove it 500' down the street and turned it off. It started right up on the first crank. I'm about to go to lunch, but I'm 100% certain that it'll start up just fine. It'll start up just fine when I head home from work around 5:00. But once it sits for a day or so, it's back to having issues getting it to start that first time.
Being that it seems to run fine and even start fine after that initial start, it leads me to believe that the "issue" resolves itself temporarily once it has been started, but then reappears after its sat for an extended period. No what temporary "issue" that could be is the million dollar question.
#40
08-08-2018, 09:00 PM
There are a few things needed to start. Get a monitoring device or app and watch the sensor outputs while it cranks but won’t start.
Some key inputs are FICM voltages, FICM sync, cranking rpm and injector oil pressure. One or more of them has to be out of the required values. That can then help diagnose the problem.
Do a google on diesel tech Ron ford 6.0 no start videos. A lot to be learned.
Some key inputs are FICM voltages, FICM sync, cranking rpm and injector oil pressure. One or more of them has to be out of the required values. That can then help diagnose the problem.
Do a google on diesel tech Ron ford 6.0 no start videos. A lot to be learned.
#41
02-14-2019, 06:05 PM
BEST ELECTRONIC FUEL PRESSURE GAUGE INSTALL THREAD:
https://www.ford-trucks.com/forums/1...ch-folder.html
https://www.ford-trucks.com/forums/1...ch-folder.html
Are those pressures normal? Is it normal for it to go from 0 key off to low 30s KOEO and then drop back to 0 after 10 seconds or so?
The only codes present are for #3 glow plug and #3 contribution/balance. I did the injector self text and it passed. Not an expert, but I don’t think 1 glow plug would cause my starting issues.
#42
02-14-2019, 06:08 PM
#43
02-14-2019, 06:15 PM
I did do the blue spring upgrade when I purchased the vehicle. I’ve also replaced both fuel filters twice...once when I purchased it, and again just to see if that was the issue.
#44
02-14-2019, 07:13 PM
#45
02-14-2019, 08:01 PM
I would be looking into fuel, or oil. Im sure that you are having some sort of "bleed off" issue. You said your fuel pressure was 38, not good. Does it still have factory fuel pump? I would look at replacing/upgrading pump. When I bought my 6.0 it had an airdog already on it. It was always noisy, so I didn't think much about it. Till it quit working, so I ordered a replacement motor from airdog. Wow what a difference, cant even hear it now and runs much better. That's where I would start with it.
