Odd noises on shut off

Whyte Rhyno · Mar 12, 2020

Anyone else notice a strange “squawking” noise when shutting off the truck in cold weather? I don’t notice the sound when the truck has been run for a while and is up to optimal temperature. See video below.

Rock Taxi · Mar 12, 2020

What the heck? Mine doesn't make any sounds like that.

Ed

abill · Mar 12, 2020

Yeeeaaa... mine doesn't do that...

Open the hood and check for a Crow... lmao

Whyte Rhyno · Mar 12, 2020

I think it might be the fuel pump or something like that. Only occurs when it’s cold.

abill · Mar 12, 2020

definitely sounds like something electronic actuating on/off.

If its fuel related could it be purging air or priming the system for a future start?

Rock Taxi · Mar 12, 2020

Sounds like a dinosaur on Jurassic Park - you sure you don't have a Raptor?

Ed

Prospect · Apr 22, 2020

6.7 350- Warm weather here. I hear a small motor running from engine compartment after truck has been shut off,doors locked and lights shut off. Wondering what that could be.

Whyte Rhyno · Apr 22, 2020

Service crew at Ford have said the noises are normal operation. Couldn't elaborate on what what making noise but they found no issues. Again, the noises only occur when cold or run for short periods. Truck runs fine so I'm not concerned anymore

Warpath · Apr 24, 2020

Mine made that noise yesterday after I started and stopped the engine to pull it in the garage.

Vigilance247 · Apr 25, 2020

I did some Googling but found nothing to match that sound. There are videos with 6.7’s making a much louder noise at shut off and that noise is caused by a faulty waste gate solenoid. By any chance, does the sound stop or change if the brake pedal is pressed? If so, it might be the diesel waste gate solenoid. Just guessing, I didn’t even stay at a Holiday Inn Express last night.

Whyte Rhyno · Apr 25, 2020

Vigilance247 said:
I did some Googling but found nothing to match that sound. There are videos with 6.7’s making a much louder noise at shut off and that noise is caused by a faulty waste gate solenoid. By any chance, does the sound stop or change if the brake pedal is pressed? If so, it might be the diesel waste gate solenoid. Just guessing, I didn’t even stay at a Holiday Inn Express last night.

Haven’t tried depressing the brake. It’s only when the engine is still cold at shut off.

Vigilance247 · Apr 25, 2020

Whyte Rhyno said:
Haven’t tried depressing the brake. It’s only when the engine is still cold at shut off.

Understood, in the video the driver stated that the noise was also at shut off and went away when the brake was pressed. I think he said that pressing the brake released the vacuum?

Whyte Rhyno · Apr 25, 2020

Vigilance247 said:
Understood, in the video the driver stated that the noise was also at shut off and went away when the brake was pressed. I think he said that pressing the brake released the vacuum?

I’ll try the brake truck next time. When I popped the hood and listened it seemed like it came from the turbo. I thought it was the vanes opening or closing or maybe a solenoid in the waste gate. Strange that it only happens when cold. Dealer service says it’s normal. Who knows.

LariatSportTremor · May 6, 2020

Florida Truck here, never heard it on mine but i have heard a sound but its only the turbo despolling i guess?

AdvPhotog · May 7, 2020

I owned a 2011 F-250 KR 6.7L and a 2014 F350 Platinum 6.7L and both trucks from time to time had what sounds like a soft duck quack from under the hood just after shutdown. Always wondered if it was the turbo venting pressure.

RickLB · Aug 21, 2020

Whyte Rhyno said:
Anyone else notice a strange “squawking” noise when shutting off the truck in cold weather? I don’t notice the sound when the truck has been run for a while and is up to optimal temperature. See video below.

View attachment 840

Mine makes that noise sometimes too