No Start & No Codes....What Else?....
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No Start & No Codes....What Else?....
I've got a 2004 6.0 4x4 broke down in Gillette WY that will crank but won't start. We've had a cert. Ford mechanic bring out the computer first time it showed the IPR valve so that was replaced. Now it's not throwing any codes. We had it running for about 2 hours a week ago but the next morning it wouldn't start again. We're at a loss of what else to check. Here's what we've checked & replaced so far:
2 new batteries
New ICP Sensor
New IPR Valve
New #6 Injector
New Cam Sensor
Checked all fuses and relays
Oil is good
Coolent is good.
High pressure fuel test checked ficm 48 volts as it should be.
It's not the hpop because oil pressure stays up when cranking for fifteen seconds.
Cleaned secondary filter housing.
All filters are good.
Checked fuel pump it's good. ....
TIA
2 new batteries
New ICP Sensor
New IPR Valve
New #6 Injector
New Cam Sensor
Checked all fuses and relays
Oil is good
Coolent is good.
High pressure fuel test checked ficm 48 volts as it should be.
It's not the hpop because oil pressure stays up when cranking for fifteen seconds.
Cleaned secondary filter housing.
All filters are good.
Checked fuel pump it's good. ....
TIA
Last edited by Lindsey Trumbull; Aug 25, 2017 at 06:52 PM. Reason: Location
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Thank you I added the location at the very beginning. I asked about reading the live data and I was told they did that. The icp is brand new. Everything checked out fine.
Posting Guru
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From: Southern AZ
So, in order for the engine to start you need a few parameters. The icp being brand new doesnt really matter.
in order to start (iirc) you need 500psi icp, 200rpm, sync=1 (true), and battery volts above 10-10.5v.
so, you need to read the data coming from the sensors while cranking to see what the computer is reading. from there you can determine what direction to go.
Richard
in order to start (iirc) you need 500psi icp, 200rpm, sync=1 (true), and battery volts above 10-10.5v.
so, you need to read the data coming from the sensors while cranking to see what the computer is reading. from there you can determine what direction to go.
Richard
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So, in order for the engine to start you need a few parameters. The icp being brand new doesnt really matter.
in order to start (iirc) you need 500psi icp, 200rpm, sync=1 (true), and battery volts above 10-10.5v.
so, you need to read the data coming from the sensors while cranking to see what the computer is reading. from there you can determine what direction to go.
Richard
in order to start (iirc) you need 500psi icp, 200rpm, sync=1 (true), and battery volts above 10-10.5v.
so, you need to read the data coming from the sensors while cranking to see what the computer is reading. from there you can determine what direction to go.
Richard
Fleet Mechanic
Joined: Nov 2016
Posts: 1,343
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You mention the hpop is good because you have oil pressure. Where are you reading this? The gauge in the dash is not showing the hpop pressure, it is showing engine oil pressure. To read the hpop pressure you need to get a scan tool.
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