Another GR valve question. - Ford Powerstroke Diesel Forum
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post #1 of 9 Old 11-11-2019, 08:12 AM Thread Starter
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Another GR valve question.

Do these valves start to slowly go out? I've know I've had a problem for a while....the stumbling, black smoke while low load acceleration. Sharp acceleration is no problem. I had the scanner on it the other day and it seemed to lag quite a bit.
I pull the valve today and it was quite easy. There was a reason it pulled easy! It was pretty dang clean and so was the manifold. I was VERY surprised on just how clean the valve and especially the manifold was.This is on a 89K 04 truck that's almost 100% stock with only 08 tranny pan and filter mod, exhaust particulate filter removed and coolant flush and change.
Is there other sensors that could be causing the egr to not function properly? I haven't searched for that particularly, but haven't seen it mentioned since owning this and another 6.0 since 04.
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post #2 of 9 Old 11-11-2019, 10:34 AM
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If it is VERY clean, you may have an EGR cooler leak. The coolant can actually "steam clean" the valve and intake.

Are you getting any white smoke?

Mark
06 F250CC SB FX4 Lariat; ARP studs; OEM gaskets; Banks exhaust; DynaTrac Ball joints; RACCCV6000; JimmiJammers; Ravelco; SynchroMax in trans case; Fumoto valves; Harpooned; Blue regulator spring; DashDAQ; PHP FICM; RiffRaff boots; DCPower 270AXP; Power Inverter; Bilstein shocks; BPD EGR cooler, radiator, water pump; SCT w/ SRL+; Rotella ELC Ultra Coolant; X2Power AGM batteries
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post #3 of 9 Old 11-11-2019, 10:43 AM Thread Starter
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Quote:
Originally Posted by bismic View Post
If it is VERY clean, you may have an EGR cooler leak. The coolant can actually "steam clean" the valve and intake.

Are you getting any white smoke?
LOL! No smoke, no "coolant balls" and no loss of coolant.

When I say "clean". I don't mean bare metal or anything close. It's just a fine coating and fluffy.
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post #4 of 9 Old 11-11-2019, 12:25 PM
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Sounds like the EGR system is working fine. maybe a turbo sticking a little (inlet guide vanes).

Probably be worth checking for codes w/ a thorough scan tool.

Mark
06 F250CC SB FX4 Lariat; ARP studs; OEM gaskets; Banks exhaust; DynaTrac Ball joints; RACCCV6000; JimmiJammers; Ravelco; SynchroMax in trans case; Fumoto valves; Harpooned; Blue regulator spring; DashDAQ; PHP FICM; RiffRaff boots; DCPower 270AXP; Power Inverter; Bilstein shocks; BPD EGR cooler, radiator, water pump; SCT w/ SRL+; Rotella ELC Ultra Coolant; X2Power AGM batteries
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post #5 of 9 Old 11-11-2019, 01:49 PM Thread Starter
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Quote:
Originally Posted by bismic View Post
Sounds like the EGR system is working fine. maybe a turbo sticking a little (inlet guide vanes).

Probably be worth checking for codes w/ a thorough scan tool.
Yeah, I don't think the vanes are malfunctioning, but it's good to check.
I do have the two EGR codes.
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post #6 of 9 Old 11-11-2019, 02:42 PM
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Post up the code numbers. It helps to see them ...

Mark
06 F250CC SB FX4 Lariat; ARP studs; OEM gaskets; Banks exhaust; DynaTrac Ball joints; RACCCV6000; JimmiJammers; Ravelco; SynchroMax in trans case; Fumoto valves; Harpooned; Blue regulator spring; DashDAQ; PHP FICM; RiffRaff boots; DCPower 270AXP; Power Inverter; Bilstein shocks; BPD EGR cooler, radiator, water pump; SCT w/ SRL+; Rotella ELC Ultra Coolant; X2Power AGM batteries
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post #7 of 9 Old 11-11-2019, 03:41 PM Thread Starter
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Quote:
Originally Posted by bismic View Post
Post up the code numbers. It helps to see them ...
The only two are P0404 and P0405.

edit...............that does mean the valve is bad.

For the time being, I just made a tune with minor changes with the egr turned off.

I'll replace it when I get back from a trip.

Any good results from using a remanufactured one from AutoNation Ford White Bear Lake?

Last edited by CrazyRay59; 11-11-2019 at 03:48 PM.
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post #8 of 9 Old 11-11-2019, 03:45 PM
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P0405 = EGR Sensor A Circuit Low. This code almost always means a bad EGR valve, caused by a bad coil in the valve, or (RARELY) a bad connector.
Hydro likes this.

Mark
06 F250CC SB FX4 Lariat; ARP studs; OEM gaskets; Banks exhaust; DynaTrac Ball joints; RACCCV6000; JimmiJammers; Ravelco; SynchroMax in trans case; Fumoto valves; Harpooned; Blue regulator spring; DashDAQ; PHP FICM; RiffRaff boots; DCPower 270AXP; Power Inverter; Bilstein shocks; BPD EGR cooler, radiator, water pump; SCT w/ SRL+; Rotella ELC Ultra Coolant; X2Power AGM batteries
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post #9 of 9 Old Today, 08:14 AM Thread Starter
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Quote:
Originally Posted by bismic View Post
P0405 = EGR Sensor A Circuit Low. This code almost always means a bad EGR valve, caused by a bad coil in the valve, or (RARELY) a bad connector.
Thanks for the specific info! Is there a consensus on the re-manufactured EGR valves from White Bear Lake or the one from Sinister Diesel or something simular?

Last edited by CrazyRay59; Today at 08:20 AM.
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