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Pop at engine area when shutting down 2013 taco, help?

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Old 02-22-2013, 10:08 PM   #1
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Pop at engine area when shutting down 2013 taco, help?

When I turn the truck off, I hear I vacuum sound then a small and faint pop noise coming from the engine. I got the truck with 160 miles and now it has1,700 miles, it still happens; everytime am shutting it off. I have not overreacted and taken it to the dealership , should I? Is this normal?
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Old 02-22-2013, 10:11 PM   #2
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Check engine light on?
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Old 02-22-2013, 10:12 PM   #3
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sounds like the smog pump. Apparently a normal noise for you new model guys.
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Old 02-22-2013, 10:19 PM   #4
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Quote:
Originally Posted by 06 tacoma owner View Post
Check engine light on?
No check engine light on, in the 1,700 miles it has total.

QUOTE=tostidos;6485383]sounds like the smog pump. Apparently a normal noise for you new model guys.[/QUOTE]

Why would this be an issue if in the past it was not? Why would it cause a small faint pop noise? Possible cycling still while in shutdown mode?
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Old 02-22-2013, 10:19 PM   #5
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When I owned my 2011 DC it didn't do this. I got my 2013 and it has been doing it since day one. From what I have been told from other members on this site, it's normal.
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Old 02-22-2013, 10:21 PM   #6
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2013 PreRunner 2wd and i dont get this noise...
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Old 02-22-2013, 10:23 PM   #7
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Quote:
Originally Posted by 100 View Post

Why would this be an issue if in the past it was not? Why would it cause a small faint pop noise? Possible cycling still while in shutdown mode?
maybe they changed the smog pumps?
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Old 02-22-2013, 10:23 PM   #8
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Quote:
Originally Posted by jw1983 View Post
When I owned my 2011 DC it didn't do this. I got my 2013 and it has been doing it since day one. From what I have been told from other members on this site, it's normal.
On mine it happens which seems like every shutoff. Hot, cold, rain...etc. there are times I may not hear it, but It's there. Have you asked any technicians and/or dealership?
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Old 02-22-2013, 10:24 PM   #9
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Quote:
Originally Posted by Frissen View Post
2013 PreRunner 2wd and i dont get this noise...
Weird, mine is a 2013 Prerunner as well, mine has that noise.
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Old 02-22-2013, 10:25 PM   #10
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Quote:
Originally Posted by 95 taco View Post
maybe they changed the smog pumps?
Any way we can verify this? It would be good to find out. This is obviously my first truck/Tacoma.
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Old 02-22-2013, 10:27 PM   #11
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Quote:
Originally Posted by 100 View Post
Any way we can verify this? It would be good to find out. This is obviously my first truck/Tacoma.
I'm not sure, maybe ask the dealer if the part #'s are different?
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Old 02-22-2013, 10:28 PM   #12
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Its normal mine does it every day I got used to it
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Old 02-22-2013, 10:29 PM   #13
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Quote:
Originally Posted by MGMTacolover55 View Post
Its normal mine does it every day I got used to it
Was it the smog pump as others implying? or did you not look into it?
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Old 02-22-2013, 10:30 PM   #14
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2012 V6 DCLB : does this most of the time
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Old 02-22-2013, 10:38 PM   #15
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Quote:
Originally Posted by sde780 View Post
2012 V6 DCLB : does this most of the time
Have you seen or heard a pattern of when it happens?
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Old 02-22-2013, 10:57 PM   #16
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Short drives where the truck hasn't warmed up completely
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Old 02-22-2013, 11:07 PM   #17
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I'm not exactly sure what causes the sound, but my 2013 V6 makes the same noise when shut off too. I wouldn't worry about it.
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Old 02-23-2013, 12:29 AM   #18
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it could be the smog pump but I don't even know what that is I know the old term for it was secondary air injection
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Old 02-23-2013, 03:49 AM   #19
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My Truck does it also. It has about 600 miles on it now. When I shut it off, I thought the noise was coming from the clutch fan. I will have it looked at by the service dept. on my 5k service. It really doesnt bother me. I just find it odd. Gives the truck a personality.
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Old 02-23-2013, 06:45 AM   #20
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http://www.tacomaworld.com/forum/2nd...shuts-off.html
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