Buzzing noise after shutting off engine.

Mekanik · May 22, 2012

What is the buzzing noise that occurs about 30 seconds after shutting the engine off? I was thinking maybe a coolant pump, but theese things don't have coolant pumps.

lmorris · May 22, 2012

The only thing that I know of that waits 30 seconds after key off to do anything is the EGR cooler bypass valve vacuum actuator solenoid.

Mekanik · May 22, 2012

I did a little more research. It's the wastegate control solinoid making the noise.

Thanks though!

Keith Browning · May 23, 2012

Now I have got to go looking for this. The only thing I was aware of running after shut down was the reductant pump emptying the line.

Alex Bruene · May 25, 2012

I've had it once. Replacing the waste-gate control actuator fixed it.

Mekanik · May 25, 2012

I've had it once. Replacing the waste-gate control actuator fixed it.

The solinoid on the left side of the engine, right under the throtle body? That's what I ordered.

Fordracer · May 25, 2012

I had one do the same thing 30 seconds after key off. It is under the throttle body on the left side.

Alex Bruene · May 27, 2012

FWIW, the one I did also had a waste-gate related DTC. P1248 I think. I'd look it up to double check, but I can't access service publications on my home computer (from what I understand, I'm not the only one running Windows 7 and IE 9 having this problem (hint!)).

joshbuys · May 28, 2012

FWIW, the one I did also had a waste-gate related DTC. P1248 I think. I'd look it up to double check, but I can't access service publications on my home computer (from what I understand, I'm not the only one running Windows 7 and IE 9 having this problem (hint!)).

Go HERE and follow the instructions, this should solve your concern with viewing PTS in IE9.

Alex Bruene · May 28, 2012

Wicked awesome!

joshbuys · May 28, 2012

Wicked awesome!

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We recently had a whole batch of computers replaced, and new ones installed in the shop(we're converting to Electronic RO's), and I being the techie that I am got the assignment of making them all work with PTS since they all are windows 7/IE 9.