Bad ICP? Or other problems? - Ford Powerstroke Diesel Forum
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post #1 of 6 Old 11-07-2011, 12:38 PM Thread Starter
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Bad ICP? Or other problems?

Background on the truck. Truck starts fine and runs normal for a short time period and then starts to lope really bad at idle, just like this youtube video.

I just put rebuilt rosewood injectors in it (they were pretty worn already and was hoping this fixed the problem), but it was doing these issues on and off before the injector rebuild. It used to go away after running it a little while, but not anymore. It runs like crap and will pour white smoke like a freight train if I give it a lot of throttle. No codes flashing, but I do have constant issues with my battery light either flickering, staying on or completely out. So does anyone have any ideas on what to look for? ICP? IPR? I did change the CPS, but that didn't do a lick of good obviously. Uhhh!!!

1999 Ford F250, 7.3 PSD

~Andrew~

http://img231.imageshack.us/img231/2296/stihl165.jpg
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post #2 of 6 Old 11-07-2011, 07:51 PM
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Check your battery connections. If it's flickering or being inconsistent then you more than likely have an electrical problem.
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post #3 of 6 Old 11-16-2011, 01:38 PM Thread Starter
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Threw AE on my truck and only got one code. The AE has some problems and I couldn't view much or test much. The code was:

P0476 - Exhaust Pressure Control Valve Range/Performance.

Anybody ever have any similar problems? Also, where is that valve located?

1999 Ford F250, 7.3 PSD

~Andrew~

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post #4 of 6 Old 11-16-2011, 08:10 PM
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Charge light. Check the single wire (white/black?) on top of the alternator. The heater hose usually rests on the alternator and f*s it up.

White smoke.
When cold starting-glow plugs/GP relay.
When at operating temperature, either low compression or low fuel pump pressure resulting in incomplete burn.

How much have you driven the truck since the injector replacement? It takes some driving to get the air out of the HPO system.

Bill

1996 F250 SC/SB 4X4 XLT
1997 F250 RC/SB 2WD project
2008 F350 CC/LB 4X4 DRW Lariat, 3" cow catcher mod
2008 Ranger SC FX4
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If your posting pictures bill, everyone dim their screens, that CAT YELLOW is bright
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Originally Posted by Fordman247365 View Post
Is there anything you DONT take apart and **** with?
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I still say that those Dodge mirrors have as much business on a OBS Ford as yoga pants have on a fat chick...my .02
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post #5 of 6 Old 11-17-2011, 09:41 AM Thread Starter
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Quote:
Originally Posted by alberta 7.3 View Post
Charge light. Check the single wire (white/black?) on top of the alternator. The heater hose usually rests on the alternator and f*s it up.

White smoke.
When cold starting-glow plugs/GP relay.
When at operating temperature, either low compression or low fuel pump pressure resulting in incomplete burn.

How much have you driven the truck since the injector replacement? It takes some driving to get the air out of the HPO system.
Will check the wire.

Glow plugs and GP were done a year ago. Starts fine in the cold.

I have about 150 miles on the injectors, but it was doing this problem before the swap.

It was running really rough on start up yesterday, but eventually straightened it's self out and ran like a top. That's why I'm leaning towards a sensor, as it doesn't have a consistent pattern of f-ing up and runs great at times.

1999 Ford F250, 7.3 PSD

~Andrew~

http://img231.imageshack.us/img231/2296/stihl165.jpg
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post #6 of 6 Old 11-17-2011, 02:26 PM
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You may want to check fuel pressure. If the pressure is low, the truck will stumble, smoke, and knock. Once the engine revs up it will build some pressure and right itself. There are no PCM sensors for fuel pressure, so it won't set a DTC or the check engine light. You'll have to hook a manual gauge to the schrader valve on the fuel filter. It should be in the 60-70 psi range.

Bill

1996 F250 SC/SB 4X4 XLT
1997 F250 RC/SB 2WD project
2008 F350 CC/LB 4X4 DRW Lariat, 3" cow catcher mod
2008 Ranger SC FX4
Quote:
Originally Posted by weareweird69 View Post
If your posting pictures bill, everyone dim their screens, that CAT YELLOW is bright
Quote:
Originally Posted by Fordman247365 View Post
Is there anything you DONT take apart and **** with?
Quote:
Originally Posted by JJFLASH View Post
I still say that those Dodge mirrors have as much business on a OBS Ford as yoga pants have on a fat chick...my .02
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