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Clunk When I Turn Off The Truck

campbell.rw

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campbell.rw Enthusiast

campbell.rw

Posted
Posted

Hi guys, I just noticed this morning and when I got home from work this morning. When I park the truck, and shift into P, and then turn the truck off, it sort of does a clunk. I am curious if this could be the slip yoke that needs greasing like some of the posts I've read, or if it could be something else? The transmission seems to shift fine, and doesn't clunk when going into gear or on shifts. The truck is a 2007 NBS Z71 Ext. Cab. Thanks for your input!

txab Senior Enthusiast

txab

Posted
Posted

Doesn't fit the common slip yoke problem. Will it "clunk" if you kill it in gear or in neutral? Might look into other things. Can you tell where the sound comes from? Maybe the instrument cluster?

campbell.rw Enthusiast

campbell.rw

Posted
  • Author
Posted

Yes, sort of like when you put it in reverse when parked on a slight grade. You can feel it when it does it. I have my foot on the brake pedal the whole time as well, not sure if that matters. But the clunk only happens when I turn the truck off, not when I put it into park.

txab Senior Enthusiast

txab

Posted
Posted

Have somebody shut your truck off while your outside listening and looking for the sound. With your additional info it could be the slip yoke. Although, I'd expect it to manifest itself at other times as well. I'd try to reproduce under different conditions.

 

What if you release the brake and then shut it off?

jrod332 Enthusiast

jrod332

Posted
Posted

Try applying your e-brake before you put it in park. it might take the pressure off the drive line so there is no slack. see what happens then. just a though. It could be play in the u joints or the rear diff.

 

 

you should also tone down your sig pic a little. try this one.

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campbell.rw Enthusiast

campbell.rw

Posted
  • Author
Posted

Hi guys, this morning when I got to work I pulled into a parking spot, and then shifted into park, then took my foot off the brake pedal and then shut the truck off. It didn't do the clunk. Does this mean I shouldn't be turning it off without taking my foot off the brakes first, or does that matter?

sonjaab Senior Enthusiast

sonjaab

Posted
Posted

Listen closely on the INSIDE of your truck down near the HVAC ducts and housing

on the passenger side when you shut it off. My blend door sometimes changes position

and clunks when you shut the truck off esp if your using the a/c in the recirc. mode.

You can actually feel it and its sorta loud too! I also thought it was drivetrain related.

 

I have a 07 gmt-900

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