please help!! egr issue.
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Junior User
Joined: Dec 2009
Posts: 54
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From: mid coast maine
please help!! egr issue.
i know theres a ton of threads i could read on this subject but i get easily distracted and off topic (ADD) so im just gonna ask for info this way. i have an 04 with 54000 on it and was towing a camper to an event up here this weekend when after 45 min or so we stopped, i let the truck idle for five and shut it off. waited for a buddy for 15 then when we went to leave my truck threw a P0404 code with a check engine lite. so we reset it and went on our way. then the truck starts running rough and blowing black smoke if i wasnt staying on the throttle a lot. it would dog and not boost then come out of it and be fine as long as i kept driving hard. eventually it threw the same code again with a P0405 code. so i got through the weekend and got it home tonite. took out my egr valve and cleaned it til it was spotless, put it back in and went for a rip. took a few minutes but then it threw both codes again and now a P0405pd code as well. dont know that much about the 6 liter, only had mine since january. can anyone steer me in the correct direction? thanks for the help in advance and happy fourth guys.
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Junior User
Joined: Dec 2009
Posts: 54
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From: mid coast maine
so just pulled the egr valve again and discovered that i effed up the bottom o-ring putting the thing back in. where should i get o-rings (who makes the best ones?) and still need to figure out why im getting codes. ANY help would be greatly appreciated.
Hotshot
Joined: Apr 2010
Posts: 19,055
Likes: 235
From: Saratoga Springs,UT
I think you need to change your egr valve
P0404 C* Exhaust Gas Recirculation Control Circuit
Range/Performance
+/- 0.10 EGRP error from commanded to actual EGRP
during normal driving conditions.
Faulty EGR sensor, valve or PCM integrity of EGR position circuit.
P0405 C* O R Exhaust Gas Recirculation Sensor A Circuit Low EGR is disabled when EGR voltage is less than 0.30 volts. EGRP circuit short to ground or open, defective sensorRange/Performance
+/- 0.10 EGRP error from commanded to actual EGRP
during normal driving conditions.
Faulty EGR sensor, valve or PCM integrity of EGR position circuit.
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wiwillis1980
Explorer, Sport Trac, Mountaineer & Aviator
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Mar 22, 2020 07:41 AM
