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Old 02-04-2013, 05:14 PM
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6.006 6.0 no start

Ok guys here is my problem I had a hot no start problem. The truck would run perfect once running. So i decided to replace the dummy plugs when I got them removed the lower orings were worn badly. Thought that was it but got everything back together drove for a bit to get the air out. Shut it off tried to restart with no luck started it the next day and drove to a shop I use to work at. I hoomed up the scanner while it was running and icp read 585psi while idling didnt wanna shut off cause the starting issue does that sound normal.
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Old 02-04-2013, 05:18 PM
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If the sct fitting is bad doesn't the truck run poorly? Cause once its running it runs lime normal im not gettin a check engine light or anything. What else could be the issue?
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Old 02-04-2013, 06:32 PM
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not always, STCs can do the weirdest of things. Hot no start is pretty characteristic
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Old 02-04-2013, 06:41 PM
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Well I jist went out and checked icp pressure via icp voltage and im only getting .31v while cranking and i read it needs .80v to start. Is there a way to tell if it is the sct fitting? Could a ipr cause this as well? Is there a way to test the ipr?
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Old 02-04-2013, 07:48 PM
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It would be nice to know the reading of the IPR before testing the system with air. Since we don't know what year your truck is, the test point is different. If your's is an 06, you can hook air up to the ICP port fairly easily with an adapter. With the proper tool, you can command the IPR closed (almost) or you can hook up 12v power momentarily to the IPR with wires. Read up on what you need to do to test for a potential HPO leak before you start into it. If you don't have a monitor, it would be a good idea to get one. If you are planning on doing the repair yourself, get the Autoenginuity with Ford bundle. It will be the best $360 you spend!
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Old 02-04-2013, 07:55 PM
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Well my truck is a 06 got the adapter to pressurize at the icp port already gonna close the ipr tomorrow with 12v power and listen for leaks at the stc. I changed the dummy plugs a few days ago since I had them already hoping that was the fix cause when I got the plugs out the oring was worn badly.
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Old 02-05-2013, 04:55 PM
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Ok guys im stumped I supllied air to the icp port and tried closing the ipr by inserting pins directly into the wire harness that goes to the ipr + to the red wire and - to the yellow with red tracer and connected them to the battery but I got no change in the air escaping from both valve covers. Does this mean my ipr is bad?
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Old 02-05-2013, 05:55 PM
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usually yes, as long as you aren't supplying power/ground to the wrong wires, I don't know offhand
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Old 02-05-2013, 06:02 PM
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Well I guess im gonna pull the ipr tomorrow and check it out if I supply power to it on the bench should I see or hear it move?
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Old 02-05-2013, 06:59 PM
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Red wire B+; Yellow/red is ground. Seems like you did it correctly. You should hear the air change its flow. Without all the background noise you should hear a slight click indicating it is closing when you apply power. If you hook it up backward, it apparently will not work. It is a coil, so for it to not work, it must be grounded when installed in the motor.

Last edited by twoicebergs; 02-05-2013 at 07:15 PM. Reason: more info
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