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Check engine light no power

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Old May 31, 2008 | 10:46 AM
  #1  
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From: Woodburn, OR
Check engine light no power

Check engine light came on and engine was running rough.
The CEL went off and the engine ran great. Next day CEL on startup the problem comes and goes.
The EGT was about 800 F when I was driving about 20 MPH. No boost pressure.
Question is where do you connect the scan tool to check the codes on 95 PSD?

I am thing it is CPS.
 
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Old May 31, 2008 | 12:18 PM
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From: Woodburn, OR
Cool New CPS

Installed new CPS and still have CEL.
 
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Old May 31, 2008 | 01:01 PM
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Go to an advance auto store or whatever you have near and get your CEL scanned. You connect the scan tool near the passenger side of the vehicle, inside the cab, near the bottom of the dash.
 
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Old May 31, 2008 | 01:09 PM
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Sounds like maybe a burnt injector wire harness maybe unplug the injector harnesses on the valve cover gaskets and take a look to see if any of them are burnt you will smell it if it is bad another indicator is oil inside the plug end when you unplug it .
 
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Old May 31, 2008 | 01:49 PM
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From: Woodburn, OR
Originally Posted by Epd444
Go to an advance auto store or whatever you have near and get your CEL scanned. You connect the scan tool near the passenger side of the vehicle, inside the cab, near the bottom of the dash.
I whent to Auto Zone and they said I have OBD1 port on my 95 PSD.
 
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Old May 31, 2008 | 01:51 PM
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From: Woodburn, OR
Originally Posted by WALJON
Sounds like maybe a burnt injector wire harness maybe unplug the injector harnesses on the valve cover gaskets and take a look to see if any of them are burnt you will smell it if it is bad another indicator is oil inside the plug end when you unplug it .
I checked the harnesses and 2 of them have oil in them. I will pull the valve covers off and check. Thanks
 
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Old May 31, 2008 | 02:44 PM
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Originally Posted by WALJON
Sounds like maybe a burnt injector wire harness maybe unplug the injector harnesses on the valve cover gaskets and take a look to see if any of them are burnt you will smell it if it is bad another indicator is oil inside the plug end when you unplug it .
I agree. sounds like wiring issues.
 
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Old May 31, 2008 | 03:05 PM
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I know my truck is a little newer but that sounds like the same thing my truck was doing it was the plug under the valve cover pan was comeing unpluged i slid it back on and its been running fine
 
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Old May 31, 2008 | 05:19 PM
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Did you find the cause ? My truck started doing the same thing today .Just idling picking up hay bales,daugther driving. Engine died,she restarted it.It ran very rough and CEL came on.All gauges fine . It cleared up,then did it again. Feels like it's starving for fuel,no power. I'll check my wires.CPS is about 2 weeks old.
 
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Old May 31, 2008 | 06:13 PM
  #10  
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From: Woodburn, OR
Getting parts

Valves cover gasket burn. Wiring to the glow plug caused the black plastic to melt taking out the front right injector.
 
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Old May 31, 2008 | 07:49 PM
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All my wires to the top of the valve covers looked good. Do I need to remove the valve cover and look under there for more ??? Thanks for your help.
 
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Old May 31, 2008 | 08:31 PM
  #12  
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From: Woodburn, OR
tjbeggs hint about the oil was spot on. Pull the plugs to the valve covers and see if there is any oil in them.

All....
Thanks for your help. I owe you all a round of drink. If you get out to Oregon I am buying.
 
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Old May 31, 2008 | 08:50 PM
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Originally Posted by willbd
tjbeggs hint about the oil was spot on. Pull the plugs to the valve covers and see if there is any oil in them.
Thanks but that was WALJON! Nice job gentlemen. Will, good luck with the repair. You know where to come if you have trouble
 
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Old May 31, 2008 | 10:35 PM
  #14  
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From: Belair md
glad to see its diag'd

dads79, unless its REALLY bad you have to pull the covers to check for the burnt wires

ford 1183, i have seen that same issue countless times on sd's. dont know why it happens. they always snap back into place and never come back.
 
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Old Jun 1, 2008 | 01:59 AM
  #15  
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From: Woodburn, OR
Originally Posted by tjbeggs
Thanks but that was WALJON! Nice job gentlemen. Will, good luck with the repair. You know where to come if you have trouble
Correction….. WALJON, Thanks’ for your hint on the oil in the wire connection. It pointed me to the right side valve gasket.
Thanks to all that replied to the help me out.

I have the new gasket and valve cover harness installed and tested. Ran out of daylight to get all the bolts into the valve cover.
 
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