1. Welcome to Tacoma World!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

Truck makes a dripping/pinging noise after parked

Discussion in '2nd Gen. Tacomas (2005-2015)' started by mattygabe, Mar 14, 2011.

  1. Mar 14, 2011 at 9:50 AM
    #1
    mattygabe

    mattygabe [OP] Well-Known Member

    Joined:
    Jan 29, 2011
    Member:
    #50137
    Messages:
    196
    Gender:
    Male
    First Name:
    Matt
    Western PA
    Vehicle:
    2011 Access Cab SR5
    Access Limited Soft Rollup Tonneau Cover
    Hey all,

    Have an issue that I'm going to try and record the sound of with my cellphone camera later today, but so far I haven't found anything with a cursory glance into my engine bay and under the truck.

    When I park the truck in the garage, as I'm walking in to the house, I've heard a dripping noise coming from near the firewall in the truck. I only hear whatever is "dripping" that hits something metal, and it's more frequent right after I turn the ignition off and gets less frequent the longer it sits. At first it's probably one drip - ping combination per every three or four seconds, and it gets less frequent from there.

    I see no oil stains on my garage floor, and I see no signs of any dripping on the floor and see no liquid or steam when I visually inspected the engine.

    I'll be taking the truck into the garage here soon to have some other minor stuff done, and was going to document what's happening with a video to show the garage, but does anyone happen to know what this is? It doesn't sound like it's normal (to me), but it might just be one of those things new vehicles do during the "break-in" period.
     
  2. Mar 14, 2011 at 9:51 AM
    #2
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    106,148
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    If your AC is running (be it in a heat mode),, it could be condensation dripping on the exhaust. The drain tube is positioned right above the exhaust on the passenger side.
     
  3. Mar 14, 2011 at 9:52 AM
    #3
    mattygabe

    mattygabe [OP] Well-Known Member

    Joined:
    Jan 29, 2011
    Member:
    #50137
    Messages:
    196
    Gender:
    Male
    First Name:
    Matt
    Western PA
    Vehicle:
    2011 Access Cab SR5
    Access Limited Soft Rollup Tonneau Cover
    Very interesting, and sounds like a very possible reason. Where exactly is the drain tube? After peeking into the engine bay and under the truck, I thought it was closest to the firewall, but I didn't actually get completely under the truck.
     
  4. Mar 14, 2011 at 9:54 AM
    #4
    kirkofwimbo

    kirkofwimbo Say no to Bro

    Joined:
    Jul 17, 2010
    Member:
    #40338
    Messages:
    1,964
    Gender:
    Male
    First Name:
    Clayton
    Austin, TX
    Vehicle:
    '07 DCSB SR5 4x4
    It's got LSD man.....
    x2 on what Chris4x4 said. I haven't heard this on my Taco yet, but my old F-150 did this, as well as the 3 ford trucks and 1 SUV that my parents owned.
     
  5. Mar 14, 2011 at 9:54 AM
    #5
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    106,148
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    If you get under the passenger side, behinde the front tire, and look up along the fire wall, you will see a black tube that sticks out about 3 to 4" and stops.
     
  6. Mar 14, 2011 at 10:01 AM
    #6
    mattygabe

    mattygabe [OP] Well-Known Member

    Joined:
    Jan 29, 2011
    Member:
    #50137
    Messages:
    196
    Gender:
    Male
    First Name:
    Matt
    Western PA
    Vehicle:
    2011 Access Cab SR5
    Access Limited Soft Rollup Tonneau Cover
    Thanks for this - I'll take a look tonight when I get home. Almost positive you'll be right on this one.

    Thanks - wasn't really sure what it could be.
     
  7. Mar 15, 2011 at 9:52 AM
    #7
    ecoterragaia

    ecoterragaia Well-Known Member

    Joined:
    Jan 23, 2011
    Member:
    #49786
    Messages:
    1,182
    Gender:
    Male
    Vehicle:
    '06 RC, 4X4, 5 speed
    Sounds like the exhaust is cooling down and contracting to me, which is normal :) I'm still interested in what you find though.
     
  8. Mar 15, 2011 at 9:57 AM
    #8
    Leggo

    Leggo slow is smooth, and smooth is fast.

    Joined:
    Dec 16, 2010
    Member:
    #47805
    Messages:
    2,420
    Gender:
    Male
    First Name:
    Steve
    Newton,Ma.
    Vehicle:
    10 TRD Sport AC 4x4 MGM
    Kenwood HU,Infinity Kappa speakers (x4), Infinity reference tweeters(x2),10" Kicker sub, Box by Subthump, Infinty Five channel amp,DVD anytime bypass, DTRL Mod, Xtang trifecta, Fogs anytime Mod, Bed Mat,Westin running boards, Console vault, Maglite mod, Weathertechs,Autopage remote starter, Power tailgate lock, HID Bi Zenon, Hella Supertones,Rain guards,Rear leaf TSB,Steering shaft TSB, Fisher Homesteader plow, 886 reverse lights mod, Redline Hood struts, Hankook Dynapro ATM LT265/70R17, power sliding rear window, Auto dimming/on anytime Bed lights, Blue Sea fuse panel & 100amp Breaker, de- badged,Rear headrest's removed, imMrYo mirror relocation,Homeroshi grill
    exactly
     
  9. Mar 15, 2011 at 10:13 AM
    #9
    DGXR

    DGXR Well-Known Member

    Joined:
    Sep 1, 2009
    Member:
    #22094
    Messages:
    1,133
    Gender:
    Male
    First Name:
    Friend
    Sacramento, CA
    Vehicle:
    2006 2.7L SR5 2-wheel drive
    aFe Pro Dry air filter, magnetic oil drain plug, synthetic seat covers, steering wheel cover
    I was gonna say this but everyone sounded so confident that it was the AC dripping on the exhaust. My 2006 still pings for a few minutes after shutdown, it is clearly the metal exhaust cooling and contracting.
     
  10. Mar 15, 2011 at 11:10 AM
    #10
    surfsupl

    surfsupl Well-Known Member

    Joined:
    Jan 8, 2008
    Member:
    #4161
    Messages:
    8,572
    Gender:
    Male
    First Name:
    Gregg
    WestCoast
    Vehicle:
    I DONT CARE IF IT'S A RE-POST
    Rear Diff Breather~ 5100's ~Fog Light Anytime~Tint~TRD Seat Covers~Weather Tech's~Pioneer H.U.~Lift~Eibach Springs~LED's......blah...blah...blah
    I've owned a few Toyota trucks and they have all done the same thing. Never resulted in any problems. I figured it might be an expansion/contraction issue with the exhaust when warming up or even cooling down.
     
  11. Mar 15, 2011 at 11:18 AM
    #11
    DEEVON911

    DEEVON911 Semi-Pro

    Joined:
    Apr 11, 2010
    Member:
    #35030
    Messages:
    14,934
    Gender:
    Male
    First Name:
    Dave
    Bethel Park, PA. Burb of da Burgh.
    Vehicle:
    2010 MGM Mostly Stock Off-Road 4x4
    TRD Cat-back Exhaust. Semi-Debadged. Trimmed down stock Antenna. Weathertech vent visors. TRD FJ Cruiser Center Cap Wheel Mod. 265/75/16 Firestone Destination A/T,s . Inverter tapped into for outlet in cab. Tacomaworld sticker which adds 5 hp.
    This is what I was thinking also, sounds like a ping. I could see where maybe sounds like something dripping onto a pan or the like.
     
  12. Mar 15, 2011 at 7:13 PM
    #12
    mattygabe

    mattygabe [OP] Well-Known Member

    Joined:
    Jan 29, 2011
    Member:
    #50137
    Messages:
    196
    Gender:
    Male
    First Name:
    Matt
    Western PA
    Vehicle:
    2011 Access Cab SR5
    Access Limited Soft Rollup Tonneau Cover
    If it makes any difference, the noise was still there on the ride home today after I kept the heat off. Also, when I do use the heat, the AC light isn't on, so I don't know if that would make a difference for the AC pipe theory.

    The expansion/contraction theory makes sense, too. I have a convection baseboard heater that does the exact same thing like clockwork.

    Just glad to know it's not an issue.
     
  13. Mar 15, 2011 at 10:18 PM
    #13
    MountainEarth

    MountainEarth Well-Known Member

    Joined:
    Feb 1, 2010
    Member:
    #30519
    Messages:
    2,487
    Gender:
    Male
    First Name:
    Bryan
    CO
    Vehicle:
    2010 TRD OR Access
    Leer 100XR Shell, BedRug mat - comfy sleeping, GT Covers microfiber seat covers, BFG All Terrains 265/70r16, Dashmat, Antennax 13" shorty antenna, Weathertech liners, Ultra Gauge, Avid Light Bar, PIAA 520 ATPs, one old dog
    Mine does that. No big deal. Just one more Tacoma sound. :)
     
  14. Mar 16, 2011 at 6:28 AM
    #14
    KevLot17

    KevLot17 Well-Known Member

    Joined:
    Jun 30, 2010
    Member:
    #39621
    Messages:
    694
    Gender:
    Male
    First Name:
    Kevin
    Pennsylvania
    Vehicle:
    '10 Blacked Out TRD Sport
    Debadged, Toytec Ultimate Lift, Banks Monster Exhaust, AFE Pro Dry filter, Black Grillecraft grille, Flat Black background headlights, Red Blinkers and markers with alternating turn signal mod, Krypton Bulbs 6000K Headlights and Fogs, Fog Light anytime Mod, LED interior lights with map light mod, AVS Black Taillight Covers, Tinted Windows, WeatherTech Digital floor liners.
    Yup. Exhaust it is. no its not a 'Taco Sound'.. Almost every vehicle does this... my buddy has an '11 Sierra that does it REAL bad!
     
  15. Mar 16, 2011 at 7:15 AM
    #15
    05Moose

    05Moose Middle-Aged Member

    Joined:
    Jan 18, 2010
    Member:
    #29613
    Messages:
    2,535
    Gender:
    Male
    First Name:
    Jim
    In the snow (NorCal)
    Vehicle:
    '05 4x4 DC LB SR5 #8 (LSD, Tow Pkg)
    '05 4x4 DC LB SR5 (LSD & Tow Pkg), Timbrens, AAL, 5100s (.85), Owned: 12/3/04 Mods: Fog, Map/Dome Light, Illuminated 4wd Switch, Washable Cabin Air Filter
    Exhaust. But just FYI, your A/C runs in either of the two defrost modes when the fan is turned on but the A/C light will not come on with it. And you can see the drain tube for it coming out of the firewall by looking down on the passenger side of the engine compartment with the hood up. It comes out of the firewall and hangs just a little above where the frame comes out from under the firewall.
     
To Top