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BlueAT4

Electric Motor noise when opening the door.

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I purchased my new AT4 last month. Now that the excitement is wearing off I have started to notice little things about the truck. Every time I open the door I can hear an electric motor noise. This truck has the standard side step bumpers. Is it possible that the factory installed the electric motor for a retractable step on the truck?

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Likely the fuel pump priming.

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Fuel pump priming.

It should only happen when opening driver door and truck has been sitting for awhile.

This is normal on 2014+ Trucks and SUV with Direct Injected engines.

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54 minutes ago, BlueAT4 said:

I purchased my new AT4 last month. Now that the excitement is wearing off I have started to notice little things about the truck. Every time I open the door I can hear an electric motor noise. This truck has the standard side step bumpers. Is it possible that the factory installed the electric motor for a retractable step on the truck?

Fuel Pump.

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Could it be the tailgate locking mechanism? I can hear mine when I open my driver's door after it's sat unlocked for awhile in the garage...

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Mine will do it opening the tailgate or any door.  

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pressurizing the ejection seat mechanism?

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The ejection seat is the most likely source of the noise.

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It's probably cycling the blinker fluid on the new LED taillights. 

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muffler bearings getting grease:D  ....fuel pump.

 

my tb does it as well...

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Yes the fuel pumps building the pressure back up. 

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On 6/19/2019 at 2:01 PM, Willyone said:

pressurizing the ejection seat mechanism?

LOL does sound a bit like an aircraft!

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