6.0 Turbo Flutter - Ford Powerstroke Diesel Forum
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Old 12-24-2011, 08:08 PM
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6.0 Turbo Flutter

My 2004 6.0 EGR Cooler failed. Installed the EGR Delete kit. After putting the truck back together, I now am experiencing turbo flutter back through the intake on deceleration and no power. I drove the truck for a while and the flutter seemed to improve and power came back around slightly. Also when the truck is turned off you can hear turbo noise back through the intake for several seconds. I don't recall hearing this in the past. I'm assuming the water than ran through the exhaust due to the failed egr cooler has done something to the turbo. I'm relatively new to dealing with diesels so excuse me if I'm asking any dumb questions. Just trying to get ideas on what the problem may be before I waste my time hunting down the problem. Any help will be greatly appreciated.
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Old 12-24-2011, 08:13 PM
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KAM (keep-alive-memory) reset & VGT learn procedure

1. Drive the truck until the engine and transmission have reached normal operating temperature.
(The VGT learn procedure requires that the oil and coolant temperatures be at normal operating temperature)

2. Flash truck back to stock (Only need to do this if running a tuner or module)

3. Turn on the headlights

4. Disconnect both batteries

5. Short out + to - battery cables to each other (Make sure both batteries are disconnected before doing this).

6. Let truck sit like this for 10-minutes

7. Turn off the headlights.

8. Re-connect batteries

9. Cycle the key to the run position twice. Pause in the “ON” position each time until the wait to start lamp goes out (minimum 5-seconds) and pause in the “OFF” position each time for 10-seconds to be sure the PCM has "gone to sleep".

10. Start the truck and let it idle for a minimum of 5-minutes at normal operating temperature. This allows the PCM to learn the EGR valve closed position value. Also you will likely hear the turbo pitch change several times during this period as the PCM learns the necessary duty cycles for accurate VGT control.

11. Complete the road test Drive Cycle:
15 miles of mixed driving (*should* be enough in most cases) to allow the PCM to "re-learn" its adaptive strategy.

Note: Anytime the batteries are disconnected, the PCM will throw the P1000 code until the “Drive Cycle” is completed.



Hope this helps. Worth a try.

After my egr delete ect... My truck ran like hell untill I did the vgt relearn


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Old 12-24-2011, 08:19 PM
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Appreciate the help. I'll give it a try.
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Old 12-24-2011, 08:19 PM
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The flutter noise itself is a normal characteristic on a 6.0. As far as the power issue, I would check where the "y" pipe clamps to the turbo. Sometimes can be very hard to get lined up properly. The clamp will still go on but you get a boost leak where the "y" pipe connects to the turbo.
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Old 12-25-2011, 06:46 AM
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Everyone has good ideas, one other possibility is that coolant went thru the exhaust side of the turbo and the VGT fins are gummed up and sticking. This will often cause excessive turbo "bark" or "flutter" noises.

Any time I have a EGR cooler blow I always split the turbo and buff it out.
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Old 03-30-2014, 11:01 AM
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I was wondering if this ever worked for the OP, my truck blew the head gasket, and had a gummed up oil cooler, so the truck just had arp studs, HG, BPD egr cooler, and ford oem oil cooler done and just had CAT ELC coolant put in. Im not having loss of power but i am having excessive turbo flutter upon deceleration, so i was wondering if the VGT relearn may fix this. Thanks.
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Old 03-30-2014, 09:11 PM
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Mine was making flutter noises. After teardown I found that the Vanes were burned through, and the unison ring was frozen. Long story short, I replaced the turbo with a new unit from a Garrett dealer. No more flutter sound now, at all. Just normal turbo "whistle". I never got any codes, and triggering the VGT relearn would fix the sound for a day or so.
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Old 03-31-2014, 04:24 AM
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i hope i dont need to tear down the turbo, it was just pulled apart and cleaned 2 months ago by the mechanic who did the oil cooler, egr cooler, and headgaskets. I wont be happy if i need to replace it either lol
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