My 2011 6.7 just started making a hum noise after shutdown. I've read that it might be the wastegate solenoid. Does anyone know if there's a TSB for this. My truck is tuned so hopefully my dealer will be tuner friendly. If not it can't be that expensive to buy the part.

 

Mine will make a humming noise followed by what almost sounds like a burp and then quiet. As far as I know this is the waste gate solenoid

 

I posted about this awhile back and everyone seems to believe it is a solenoid. Mine has been doing it for close to a year now. Runs for 30 seconds or so after shutting engine off. I have also noticed it during the engine running fyi. so far no problems to speak of with it however.

 

That was one of the noises that disappeared after I removed my EGR cooler. Just wasn't a thing ever again. Whether it's directly related or just a side effect I don't know.

 

I had the hum as well. I don't know if it was under a TSB, but I do believe it was the waste gate controller.

 

TSB for the wastegate noise:

 

Waste gate solenoid.

To diagnose, press the brake pedal after you have shut down and the noise starts, if the sound stops it's the waste gate solenoid.

No service action is required or even suggested, they want us all to have to hear this.

As far as anyone has ever said, there's nothing wrong with it, nothing is defective or broken or wearing out. It just happens. Mines been doing it for at least 40,000 miles now.

 

Update.
I drove to Ford today and talked to the diesel mechanic. He listened to my truck hum after I shut it off. He agreed it was the waste gate control valve. I showed him the TSB (thanks Senix) and he was surprised that TSB had been issued. He told me he's seen the problem and that Ford did not recommend a fix. The dealer had the part in stock and will be fixing it next week. On a side note-I noticed a 6.7 getting a new engine. I asked about it and was told that there's been an issue with the motor seizing up. I've never heard that. He said that there's also been an issue with the glow plug dropping inside the motor and causing major damage. I was surprised to hear this. Especially since my truck is tuned.

 

there have been some valves dropped as well. Early on 2011's, mostly chassis models.

Not a common problem but enough that they did a fix for the valves.

 

Hey Senix could you post a copy of that TSB as I couldn't get it to open..

 

You might want to read my OP. Some good info including pictures and sound recordings for comparison. Mine was replaced under warranty, many since then have been refused. Here's the part from my original post:
https://www.ford-trucks.com/forums/1...l#post10309654

Make sure that your dealer is going to follow the TSB and you don't get caught in paying! I understand that Ford has issued an advisory telling dealerships to not replace the part. Ford now considers the noise 'normal'! D'oh!

Good luck, that damn noise is certainly annoying!

jammer

 

FulltextTSBs <o></o>

TechnicalService Bulletins<o></o>

TSB Main Page :: Year 2012:: Model F-250:: TSB 13-10-7<o></o>

<table width="96%" class="MsoNormalTable" style="border: 2.25pt outset currentColor; width: 96%; mso-cellspacing: 0in; mso-yfti-tbllook: 1184; mso-padding-alt: 2.25pt 2.25pt 2.25pt 2.25pt;" border="1" cellspacing="0" cellpadding="0"><tbody><tr style="mso-yfti-irow: 0; mso-yfti-firstrow: yes;"><td style="background: blue; padding: 2.25pt; border: rgb(0, 0, 0);" colspan="2"></td></tr><tr style="mso-yfti-irow: 1;"><td width="25%" style="background: white; padding: 2.25pt; border: rgb(0, 0, 0); width: 25%;">TSB
13-10-7<o></o>
</td><td width="65%" style="background: white; padding: 2.25pt; border: rgb(0, 0, 0); width: 65%;">

• 6.7L DIESEL – BUZZING NOISE UNDER HOOD<o></o>

</td></tr><tr style="mso-yfti-irow: 2; mso-yfti-lastrow: yes;"><td style="background: blue; padding: 2.25pt; border: rgb(0, 0, 0);" colspan="2">[************]Publication Date: October 3, 2013[/COLOR]<o></o>
</td></tr></tbody></table>
<o> </o>

<table class="MsoNormalTable" style="mso-cellspacing: 1.5pt; mso-yfti-tbllook: 1184;" border="0" cellpadding="0"><tbody><tr style="mso-yfti-irow: 0; mso-yfti-firstrow: yes; mso-yfti-lastrow: yes;"><td width="230" style="padding: 0.75pt; border: rgb(0, 0, 0); width: 172.5pt; background-color: transparent;">FORD:<o></o>
</td><td style="padding: 0.75pt; border: rgb(0, 0, 0); background-color: transparent;">2011-2012 F-250, F-350, F-450<o></o>
</td></tr></tbody></table>
ISSUE:<o></o>

Some2011-2012 F-Super Duty 250-450 pickup trucks equipped with a 6.7L diesel enginemay exhibit a buzzing noise from under the hood while the engine is runningand/or for up to thirty (30) seconds after the engine is shut off. This concernmay be due to the wastegate control valve vacuum harness causing the wastegatecontrol valve to resonate. <o></o>

ACTION:<o></o>

Followthe Service Procedure Steps to correct the condition. <o></o>

SERVICE PROCEDURE<o></o>

1. Does the wastegate control valve emit a buzzing noise while the engine is running and/or for up to thirty (30) seconds after engine is shut off?<o></o>
   1. No – this article does not apply. <o></o>
   2. Yes – proceed to Step 2.<o></o>
2. With the buzzing noise present, disconnect the vacuum hoses from the wastegate control valve. Does the buzzing noise stop?<o></o>
   1. No – this article does not apply. Refer to Powertrain Control/Emissions Diagnosis (PC/ED) manual for normal diagnostics.<o></o>
   2. Yes – proceed to Step 3.<o></o>
3. Replace the wastegate control valve vacuum harness.<o></o>
   1. Remove the throttle body. Refer to Workshop Manual (WSM), Section 303-12.<o></o>
   2. Remove the air cleaner outlet pipe. Refer to WSM 303-12.<o></o>
   3. Remove three wire harness retainers and position aside engine wire harness. (Figures 1 and 2)
      
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      Figure 1 – Article 13-10-7
      
      
      
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      Figure 2 – Article 13-10-7<o></o>
   4. Disconnect vacuum harness and remove.<o></o>
   5. Reverse procedure for installation.<o></o>

<o> </o>

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</td><td style="padding: 2.25pt; border: rgb(0, 0, 0); background-color: transparent;">PART NAME<o></o>
</td></tr><tr style="mso-yfti-irow: 1; mso-yfti-lastrow: yes;"><td style="padding: 2.25pt; border: rgb(0, 0, 0); background-color: transparent;">BC3Z-9D430-E<o></o>
</td><td style="padding: 2.25pt; border: rgb(0, 0, 0); background-color: transparent;">Vacuum Harness<o></o>
</td></tr></tbody></table>
WARRANTY STATUS:<o></o>

EligibleUnder Provisions Of New Vehicle Limited Warranty Coverage
IMPORTANT: Warranty/ESP coverage limits/policies/prior approvals are notaltered by a TSB. Warranty/ESP coverage limits are determined by the identifiedcausal part and verified using the OASIS part coverage tool.<o></o>

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</td><td style="padding: 2.25pt; border: rgb(0, 0, 0); background-color: transparent;">DESCRIPTION<o></o>
</td><td style="padding: 2.25pt; border: rgb(0, 0, 0); background-color: transparent;">TIME<o></o>
</td></tr><tr style="mso-yfti-irow: 1; mso-yfti-lastrow: yes;"><td style="padding: 2.25pt; border: rgb(0, 0, 0); background-color: transparent;">131007A<o></o>
</td><td style="padding: 2.25pt; border: rgb(0, 0, 0); background-color: transparent;">2011-2012 F-Super Duty 250-450 6.7L: Diagnose And Replace The Wastegate Control Valve Vacuum Harness (Do Not Use With Any Other Labor Operations)<o></o>
</td><td style="padding: 2.25pt; border: rgb(0, 0, 0); background-color: transparent;">1.1 Hrs.<o></o>
</td></tr></tbody></table>
DEALER CODING<o></o>

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</td><td style="padding: 2.25pt; border: rgb(0, 0, 0); background-color: transparent;">CONDITION CODE<o></o>
</td></tr><tr style="mso-yfti-irow: 1; mso-yfti-lastrow: yes;"><td style="padding: 2.25pt; border: rgb(0, 0, 0); background-color: transparent;">9D430<o></o>
</td><td style="padding: 2.25pt; border: rgb(0, 0, 0); background-color: transparent;">v3<o></o>
</td></tr></tbody></table>
«Recalls<o></o>

 

My 2012 F250 SD with 45300 miles is doing the same thing. A 30 second or so long loud hum/buzz after shut down. Called Leif Johnson Ford here in Austin, service advisor said he knows about the issue. Have appt. on Monday to bring it in with my TSB 13-10-7 in hand. IMO if a TSB is issued for a problem and they say its normal then why a TSB in the first place. Fix it Ford.

 

Thank you for the post .........
Mine has been doing this since 30K miles. I now am at 44K miles.
It seems to only do it if the engine is fully warmed up. (hot)

 

I assume this is covered under the 5yr/100,000 engine warranty right? Has anyone had this repair done to confirm?