Quote:
Originally Posted by DEF4Runner
No, I park on a slightly decling driveway and it settles before I get out.
I'm going to climb under the next time I park at home and patiently wait...maybe get a recording.
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Sorry to resurrect this. Did you figure out what this is? I have the same thing—a single pop shortly after shutting the engine off. I suspect it’s a heat shield contracting. When I gently tap the larger heat shield in the middle of the truck, the sound is pretty similar