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

Rattling sound after acceleration!!??

Discussion in '1st Gen. Tacomas (1995-2004)' started by Tacojocoma, May 14, 2011.

  1. May 14, 2011 at 4:28 PM
    #1
    Tacojocoma

    Tacojocoma [OP] Member

    Joined:
    Mar 3, 2009
    Member:
    #14285
    Messages:
    20
    Gender:
    Male
    Los Angeles
    Vehicle:
    2003 PreRunner TRD
    Debadged, Kodiak Sidewinders
    Hello there folks...hope everyone is doing well. Can you shed some light on this problem?

    After accelerating, I hear a "rattling" sound- seems to come from below the taco (nothing from the engine area.) I NEVER hear it when stepping on the gas pedal....ONLY when I take the pressure off the pedal and coast...

    Based on what I've read, I think it's related to the exhaust:confused:...but I wanted to check with you guys to see what (specifically) it might be before I head out to the mechanic.

    NOTE: ...no mods done to exhaust, engine, etc....everything still stock:(

    I appreciate any help, in advance! Thanks! -J
     
  2. May 14, 2011 at 6:36 PM
    #2
    VirginiaBound

    VirginiaBound Whyareyoureadingthis?

    Joined:
    Jun 22, 2009
    Member:
    #18755
    Messages:
    7,332
    Gender:
    Male
    First Name:
    Sam I am, green eggs and ham
    North of Maine, South of Spain
    Is it a metal on metal rattle?

    I bet its the converter, Ive two of them rattle on me. You can go get a coat hanger or mechanic wire and wrap around the outside of the converter tight, the heat shields break loose and rattle. Sounds just like what your post describes.
     
  3. May 14, 2011 at 6:37 PM
    #3
    rex99

    rex99 Well-Known Member

    Joined:
    Dec 13, 2009
    Member:
    #27492
    Messages:
    6,963
    Gender:
    Male
    TArdCOMAWORLD
    Vehicle:
    Proton Cruiser
    Rocket Boosters, Flux Capacitor, Escape Pod, Throttle Body Spacer, Homeroshi, ATRAC disable
    Sounds like me, but the opposite. I only hear the rattle when on the gas, not when coasting. I've heard before that it may be heat shield related, just have to get under there some time and check it out.
     
  4. May 14, 2011 at 6:46 PM
    #4
    VirginiaBound

    VirginiaBound Whyareyoureadingthis?

    Joined:
    Jun 22, 2009
    Member:
    #18755
    Messages:
    7,332
    Gender:
    Male
    First Name:
    Sam I am, green eggs and ham
    North of Maine, South of Spain
    It will only rattle under acceleration. You can leave the truck off and hit at the top and bottom of the Cat with something or kick at it and easily hear the rattle.

    OP, I'd check brakes and rolling parts. I'm sure someone eles will chime in shortly.
     
  5. May 14, 2011 at 8:48 PM
    #5
    glamis3000

    glamis3000 Well-Known Member

    Joined:
    Feb 8, 2011
    Member:
    #50795
    Messages:
    73
    Gender:
    Male
    First Name:
    Brant
    Cottage Grove OR
    Vehicle:
    '96 toyota tacoma 240k miles
    3in lift, 31x10.5x15 toyo mt, tinted windows,
    ive had my front driveshaft come unbolted and it rattled and eventaully started making really loud banging noises. so while you are under the truck id just check both driveshafts. but it sounds like what countryboy is talking about..
     
  6. May 14, 2011 at 11:25 PM
    #6
    Tacojocoma

    Tacojocoma [OP] Member

    Joined:
    Mar 3, 2009
    Member:
    #14285
    Messages:
    20
    Gender:
    Male
    Los Angeles
    Vehicle:
    2003 PreRunner TRD
    Debadged, Kodiak Sidewinders
    Thanks very much everyone....

    Vacountryboy....Yeah, it is a "metal on metal" rattle. It sounds like two spoons clanging together rapidly. I also forgot to mention that it is much worse on cold mornings (even after the required warming up period)........but sometimes, at the end of the day after at least 20 or 30 miles- I don't hear a thing.

    Thanks REX and glamis, as well...at least I am in the ballpark now.
     
  7. May 14, 2011 at 11:27 PM
    #7
    Tacojocoma

    Tacojocoma [OP] Member

    Joined:
    Mar 3, 2009
    Member:
    #14285
    Messages:
    20
    Gender:
    Male
    Los Angeles
    Vehicle:
    2003 PreRunner TRD
    Debadged, Kodiak Sidewinders
    p.s.- i appreciate the replies....considering there seem to be quite a few old threads with a "rattling" related subject! i'll let you all know what's going on when i figure it out.
     
  8. May 16, 2011 at 1:17 AM
    #8
    Stout890

    Stout890 Well-Known Member

    Joined:
    May 8, 2011
    Member:
    #56287
    Messages:
    511
    Gender:
    Male
    First Name:
    Jason
    Rosamond ca
    Vehicle:
    99 prerunner sr5
    HID head lights, fagtech coil overs and an AAL, gay ass 2 inch body lift (soon to be removed) taneau cover, k&n intake, soon to have an axle swap with a E locker
    im in this same boat i have this exact rattle when i let off the gas and coast. mine has a bit of a squeak to it. my exhaust is not stock and it has 2 slip joint to connect the smaller stock pipe to the bigger .dia of the aftermarket exhaust. i believe my rattle may either be from that or i was also advised to check the main center bearing that hold up the drive shaft..mine seems fine. its so strange because just as you described sometimes i dont even hear it..but most of the time i do hear it though. its so annoying! it makes me feel like my truck is a noisy piece of crap. if anyone can get to the bottom of this that would be great. im going to get my exhaust welded this week so well see if that fixes it
     
  9. May 16, 2011 at 9:34 AM
    #9
    turtletaco

    turtletaco Active Member

    Joined:
    Mar 17, 2011
    Member:
    #53211
    Messages:
    27
    Gender:
    Male
    VA
    Vehicle:
    01 SR5 XCab 4x4 Manual
    My issue happened right around 1900rpm almost every time. I heard the metal rattle sound but soon as it was above or below that RPM I didn't hear it. So I had someone help me by getting to that RPM when in out of gear to find out my second O2 sensor's nuts were gone. Drove me crazy at stop lights sounding like a POS truck. But two nuts fixed the problem quick. Does it do it if you are in park rev'ing? If so get someone to rev it while looking to see where it's coming from.
     
  10. May 16, 2011 at 10:17 AM
    #10
    Tacojocoma

    Tacojocoma [OP] Member

    Joined:
    Mar 3, 2009
    Member:
    #14285
    Messages:
    20
    Gender:
    Male
    Los Angeles
    Vehicle:
    2003 PreRunner TRD
    Debadged, Kodiak Sidewinders
    Stout890- sorry to hear about that...but glad I'm not the only one who hears this annoying sound. I was starting to think it was in my head.

    turtletaco- yeah, it has made the noise when in park while revving. So your O2 sensor nuts were missing? Yikes...I have to get it smogged in a few days- hope that doesn't affect the test result. I don't know...

    Since it doesn't make this noise alllllll the time, I'm a little hesistant to take it to my mechanic and sit there revving (or driving around the block)....because we all know that as soon as you want to show someone a problem- it disappears!

    Well, the good news is, this is the ONLY problem I've ever had with this truck! Which is saying quite a bit compared to friends who have owned Chevys, Dodge, etc. (those are good, but Toys are great!)

    I will update everyone as I investigate more....please do the same if you all find anything out! Thanks!
     
  11. Aug 10, 2011 at 7:35 AM
    #11
    Stout890

    Stout890 Well-Known Member

    Joined:
    May 8, 2011
    Member:
    #56287
    Messages:
    511
    Gender:
    Male
    First Name:
    Jason
    Rosamond ca
    Vehicle:
    99 prerunner sr5
    HID head lights, fagtech coil overs and an AAL, gay ass 2 inch body lift (soon to be removed) taneau cover, k&n intake, soon to have an axle swap with a E locker
    I'm pretty convinced it's the slip joint in my exhaust. One day I'll get around to getting it tack welded
     
  12. Sep 23, 2011 at 2:04 PM
    #12
    Stout890

    Stout890 Well-Known Member

    Joined:
    May 8, 2011
    Member:
    #56287
    Messages:
    511
    Gender:
    Male
    First Name:
    Jason
    Rosamond ca
    Vehicle:
    99 prerunner sr5
    HID head lights, fagtech coil overs and an AAL, gay ass 2 inch body lift (soon to be removed) taneau cover, k&n intake, soon to have an axle swap with a E locker
    Tacojoecoma you ever figure this one out? My rattle went away for a while and has now come back!! I hate this rattle. Still looking to get the exhaust slip joint fixed up eith with a tack weld or cut a releif slit so that the worm clamp can grip the two pipes beter
     
  13. Sep 23, 2011 at 2:10 PM
    #13
    tacomarotto

    tacomarotto "Change is inevitable, but growth is optional."

    Joined:
    Jan 27, 2010
    Member:
    #30187
    Messages:
    3,653
    Gender:
    Male
    First Name:
    Jon
    New Orleans, LA
    Vehicle:
    FJ Cruiser 07'
    Bilstein 5100 (2.5") aFe short ram intake KC light bar PIAA halogen Lights Hella Lights on top Yakima Load Warrior
    i get a little rattle under mine too when i accelerate. it only a rare occasion though. i think its heat shield. doesnt bother me too much.

    does yours rattle EVERY time you accelerate?
     
  14. Sep 23, 2011 at 2:37 PM
    #14
    jking3002

    jking3002 Well-Known Member

    Joined:
    May 15, 2010
    Member:
    #37187
    Messages:
    197
    Gender:
    Male
    First Name:
    Jonathan
    Kentucky
    Vehicle:
    Scion tC
    Ricer muffler, window tent, trd shift knob.
    Had the same thing. It was coming from my muffler. Muffler replaced and no more rattle. Have someone rev it while you listen for the sound....
     
  15. Sep 23, 2011 at 2:38 PM
    #15
    96Taco

    96Taco Well-Known Member

    Joined:
    Jan 6, 2011
    Member:
    #48827
    Messages:
    763
    Gender:
    Male
    Alberta
    Vehicle:
    '04 V8 4Runner
    ..stay tuned
    I get this annoying rattle at about 1800RPMs. Not heat shield unfortunately. Interested if you find it.
     
  16. Sep 23, 2011 at 4:48 PM
    #16
    Stout890

    Stout890 Well-Known Member

    Joined:
    May 8, 2011
    Member:
    #56287
    Messages:
    511
    Gender:
    Male
    First Name:
    Jason
    Rosamond ca
    Vehicle:
    99 prerunner sr5
    HID head lights, fagtech coil overs and an AAL, gay ass 2 inch body lift (soon to be removed) taneau cover, k&n intake, soon to have an axle swap with a E locker
    People who get a rattle while accelerating or at a certain rpm most likely have a bad cat that is going to pieces on the inside.

    My rattle is when I let off the gas while coasting over 15mph so to have someone rev it while I listen won't do much for me. I need to mount a gopro under the frame and review the video lol but I don't have a gopro. Maybe I can have someone drive it while I fallow in another car and listen to try and pinpoint it. But I think it's the exhaust piping
     
  17. Sep 24, 2011 at 4:29 PM
    #17
    Tacojocoma

    Tacojocoma [OP] Member

    Joined:
    Mar 3, 2009
    Member:
    #14285
    Messages:
    20
    Gender:
    Male
    Los Angeles
    Vehicle:
    2003 PreRunner TRD
    Debadged, Kodiak Sidewinders
    No! I never figured it out....except to say that I'm 100% positive it is Cat related....based on everyone's post replies here.

    I can't believe I've still let it go this long.....

    In the past month or so I haven't heard it, actually. But I know the problem is still there. :( It's annoying, huh?
     
  18. Sep 24, 2011 at 5:20 PM
    #18
    meatman

    meatman I deal with dead animals

    Joined:
    Mar 24, 2011
    Member:
    #53630
    Messages:
    3,679
    Gender:
    Male
    First Name:
    Greg
    Murphy N.C.
    Vehicle:
    (built) 04 Tacoma SR5 4x4 and 01 TRD 4x4 DD
    More than the wife knows!
    mine did the same thing and endded up being the shield for the o2 sensor both bolts had come off but the shield was still there. something to look at
     
  19. Sep 24, 2011 at 5:39 PM
    #19
    Styx586

    Styx586 Well-Known Member

    Joined:
    Apr 13, 2011
    Member:
    #54822
    Messages:
    1,506
    Gender:
    Male
    First Name:
    Terrance
    Mission Viejo, Ca
    Vehicle:
    2001 TRD Off-road Prerunner V6
    Icon Stage 2, gunmetal Countersteers, BFG A/T's
    mine just started doin this same thing a few weeks ago... i first noticed it when i was cruising down the freeway. As soon as i let off the gas it goes away. It only happens rarely but when it does its pretty annoying.
     
  20. Sep 24, 2011 at 10:25 PM
    #20
    Stout890

    Stout890 Well-Known Member

    Joined:
    May 8, 2011
    Member:
    #56287
    Messages:
    511
    Gender:
    Male
    First Name:
    Jason
    Rosamond ca
    Vehicle:
    99 prerunner sr5
    HID head lights, fagtech coil overs and an AAL, gay ass 2 inch body lift (soon to be removed) taneau cover, k&n intake, soon to have an axle swap with a E locker
    Tacojoecoma is your rattle happening while coasting or accelerating?
    Mine happens when I let off the gas... While im on the gas it goes away.

    And he'll yeah it is annoying, it makes my truck sound like a shit bucket
     
To Top