contribution test #4 cylinder failure - Ford Powerstroke Diesel Forum
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post #1 of 13 Old 12-05-2011, 03:21 PM Thread Starter
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contribution test #4 cylinder failure

i just redid my valve cover gaskets, uvch, connectors above valve covers. could switched up wires cause this failure? was running good before swap. running rough and blowing white smoke under load. wont let me passed 1500 rpms now. guess i should recheck wiring anyone else experience this after swap? thx Josh

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post #2 of 13 Old 12-05-2011, 03:37 PM
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are you saying you may have reversed the leads on the injectors? As in, #6 on #4, and vice versa? That would be bad. Get that pulled apart ASAP.



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post #3 of 13 Old 12-05-2011, 05:53 PM
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I'd re-check the wiring just to be sure nothing was crossed, and no exposed wires are shorting. Check to make sure the UVCH wiring is clear of rockers and pushrods, some guys have had wires rub and short out. I'm assuming you did just the 2/4 connector?

White wire-injector #2, connector pin 4
Brown/lt blue wire-injector #4, connector pin 2
pink/yellow wire-injector common, connector pin 3
Pins 1/5 are GPs

What was the truck doing before you did the work to it? Does it only smoke when under load?

Bill

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post #4 of 13 Old 12-06-2011, 01:08 AM Thread Starter
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It only smokes under load. Before the swap it threw a Cel. Idled rough for a few seconds then cleared up. I pulled the covers and found the gasket was melted close to fire wall drivers side along with harness. Could you explain all of the connectors like your explanation above including wire colors. Thx so much Bill. Your knowledge is appreciated.

97 ford f250 HD supercab xlt longbed
banks intercooler
banks power pack
285 75 16's
3" dp
DIY tymar intake 6637
stancor 586-902
B&W tow n stow
triple pillar gauges:
Banks Dynafact boost gauge
Banks Dynafact egt gauge
ISS Pro trans temp gauge
Hayden 32k transcooler

kittyless and unmuffled
[IMG][/IMG]
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post #5 of 13 Old 12-06-2011, 01:29 AM Thread Starter
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Also which side is which if your standing in front of truck and whats the cylinder order. Thx.Josh

97 ford f250 HD supercab xlt longbed
banks intercooler
banks power pack
285 75 16's
3" dp
DIY tymar intake 6637
stancor 586-902
B&W tow n stow
triple pillar gauges:
Banks Dynafact boost gauge
Banks Dynafact egt gauge
ISS Pro trans temp gauge
Hayden 32k transcooler

kittyless and unmuffled
[IMG][/IMG]
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post #6 of 13 Old 12-06-2011, 07:26 PM
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Cylinder layout:
7----------8
5----------6
3----------4
1----------2

P--FRONT--D


This is the connector for injectors 2 and 4. The picture view is of the outer harness connector, looking at the face of the plug, not the backside where the wires enter.


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:
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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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post #7 of 13 Old 12-10-2011, 10:08 AM Thread Starter
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Update! Finally got the truck straightened out. Running like a top again. thx for the help fellas. Feeling good

97 ford f250 HD supercab xlt longbed
banks intercooler
banks power pack
285 75 16's
3" dp
DIY tymar intake 6637
stancor 586-902
B&W tow n stow
triple pillar gauges:
Banks Dynafact boost gauge
Banks Dynafact egt gauge
ISS Pro trans temp gauge
Hayden 32k transcooler

kittyless and unmuffled
[IMG][/IMG]
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post #8 of 13 Old 12-10-2011, 12:47 PM
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What was wrong?

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post #9 of 13 Old 12-10-2011, 12:57 PM
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Good to hear you got it fixed

Did you have some wires crossed?

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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post #10 of 13 Old 12-10-2011, 02:01 PM Thread Starter
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Had a loose wire. Thx again Bill your schematics were right on.

97 ford f250 HD supercab xlt longbed
banks intercooler
banks power pack
285 75 16's
3" dp
DIY tymar intake 6637
stancor 586-902
B&W tow n stow
triple pillar gauges:
Banks Dynafact boost gauge
Banks Dynafact egt gauge
ISS Pro trans temp gauge
Hayden 32k transcooler

kittyless and unmuffled
[IMG][/IMG]
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