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4.0 running rich? Engine noise.

Discussion in '2nd Gen. Tacomas (2005-2015)' started by KUATO, May 16, 2017.

  1. May 16, 2017 at 10:50 PM
    #1
    KUATO

    KUATO [OP] Well-Known Member

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    Ive noticed my 2010 4.0 Tacoma with 70k miles having soot every couple days on the bedside from the exhaust. My truck is white so its easier to see. Im not running the truck hard. Is that normal?

    Also i put synthetic 5/30 in it with oem filter. And after 1500 miles its fairly dirty. My old 2000 2.4 tacoma with synthetic wouldnt have dirty oil until past 5k miles.

    Also took a vid of the engine noise. I can hear it clearly echoing against overpasses and houses in neighborhoods. Seems to be coming through drivers side of exhaust the most.. https://youtu.be/JIX1w7cgsgM
     
    Last edited: May 16, 2017
  2. May 16, 2017 at 11:13 PM
    #2
    httuner

    httuner Well-Known Member

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    AFe Rebel Catback Exhaust, AFe GT Momentum Air Intake, Method Wheels, Bilstein 5100, Rigid 30" SR2 Light Bar, Rigid 10" SR Light Bar. Lots of Love
    You check if your PCV valve is clogged? You can take it off and soak it in Carb cleaner for a good 5 minutes; then shake it back and fourth to break up all the carbon and gunk build up inside of it and keep soaking and shaking to give it a good cleaning; . Once it starts rattling again when you shake it then your good to re-install(or simply buy a new one; since they are pretty cheap). A bad PCV valve can cause havoc on an engine. You could be getting excessive blow-by which can dirty the engine oil quickly.
     
  3. May 17, 2017 at 12:04 AM
    #3
    windsor

    windsor Just a guy

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    Canopy, fitted seat covers, OBA with self leveling air bags, 100w solar, dual Rhino Rack Pioneer platforms, side & rear LED work/FU lights, CB, cell booster. 7x16 cargo conversion, 3" lift, 7'x6.5' fold down aluminum rear deck.
    Some trucks do get more soot buildup than others. I made a turned down tip, cut the tailpipe back a bit then welded the tip on. Now all of my soot goes to the ground instead of the side if my truck or the wall.
    As for the sound, have you checked for exhaust leaks? Both of my collectors leak and can be heard at times. With a COLD engine, rub your finger under the exhaust manifold flange (against the head). If you have an exhaust leak, you will get carbon/soot on your finger. Collector check is similar. Just look for black around the joint.
     
  4. May 17, 2017 at 8:17 AM
    #4
    KUATO

    KUATO [OP] Well-Known Member

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    Thanks for input guys. Anyone have any words about my engine noise? It sucks to have soend 22k on a truck you need to last 10 or 15 years to have it sound worse than all your sub 5k beaters
     
  5. May 17, 2017 at 8:21 AM
    #5
    Pigpen

    Pigpen My truck is never clean

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    Access cab toolbox/ dog bed with seats and headrests deleted, waterproof TRD seat covers, yellow wire mod, diff breather relocated to tail light, engine block heater, Leer topper with Yakima tracks and rack, Yakima rack on cab, Ride Rite with Daystar cradles, CBI hidden front hitch, wired for winch front and rear Warn quick connect, Warn x8000i on external carrier, sway bar delete, trailer plug relocated to bumper, Pelfreybilt IFS and Mid skids, ECGS front diff bushing, ARB CKMA12 compressor, 255/85/16 Backcountrry MT 3 load E tires on stock steel rims, Up2NoGood heated mirror kit, Husky X-act Contour front floor liners, Northstar AGM 24F battery, Pelfreybilt bolt on sliders with kickout and top plates, TRD Pro headlights, Depo smoked tail lights, Energy suspension body mount bushing kit, OME Dakar leaf packs with AAL, Billstein B110 rear shocks, OME 90021 front shocks with 885 coils, SPC LR UCAs, Up2NoGood 2wd low range mod, 4 Wheel Campers Grandby slide in camper
    Sounds like a 4.0 to me
     
  6. May 17, 2017 at 8:36 AM
    #6
    DGXR

    DGXR Well-Known Member

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    Possibly the synthetic oil is cleaning the engine where the previous conventional oil did not, causing the oil to look dark quickly. Could also be the PCV. More than anything, I am questioning the sudden appearance of visible soot. How are the O2 sensors? Have the TB and MAF been cleaned lately?
     
  7. May 17, 2017 at 10:08 AM
    #7
    KUATO

    KUATO [OP] Well-Known Member

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    Thanks for the reply. I was thinking the same thing about the synthetic maybe cleaning the engine. Ive only had the truck for about 5k miles. I bought it because it was supposedky a 65k mile cremepuff that i thought would go 400k miles. So far im wishing i would have kept my 140k 2000 2.7 trd and bought a nice car.

    Ive done nothing but put in the 5/30 valvoline synthetic and an oem filter in hopes it would help the engine noise. Which it didnt.

    I was planning on doing plugs and a fuel system cleaning right off followed by fluid changes in tranny and dif. And greasing everything. Ill def do the pcv as well. I pulled the hose off of it and looked in it. There was a little oil. Maybe normal.
     
  8. May 17, 2017 at 10:14 AM
    #8
    80schild

    80schild Well-Known Member

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    You sure the noise isn't coming from the purge solenoid? From what I've learned they all 'tick tick tick' when the engine is fully warmed up. There's a mod listed on here where you put rubber washers behind it to dampen the vibrations and noise.

    Another thing, if all the previous owner did was put put around in it there could be some carbon buildup. Get it out on a back road and give it a good Italian tuneup while watching the mirrors to see if a cloud of soot comes out.
     
  9. May 17, 2017 at 11:44 AM
    #9
    TexasWhiteIce

    TexasWhiteIce Well-Known Member

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    Doesn't sound like anything out of the ordinary. Just drive it like you stole it.

    My 2010 makes engine noise too and has for years( chugging sound when accelerating, noises when it's turned off, noises when it's idling). Never had a problem with it.
     
  10. May 17, 2017 at 3:21 PM
    #10
    nd4spdbh

    nd4spdbh Well-Known Member

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    100% normal

    White shows the soot buildup WAY more than other colors.. and that noise is typical of all 4.0L's ... keep changing oil and filter at 5k and it will live longer than the rest of the truck.

    /thread
     
    Sugar Silva likes this.
  11. May 20, 2017 at 7:26 AM
    #11
    KUATO

    KUATO [OP] Well-Known Member

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    Alright thabks for the input guys. Im gonna do a full tuneup soon since i have no clue whats been done to it and hope for the best.
     
  12. May 20, 2017 at 7:34 AM
    #12
    Murphinator

    Murphinator Well-Known Member

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    If you do a tune up be sure to change the spark plugs. Most people don't bother changing them at the reccomended 30,000 mile interval. Check out this thread for more info. Also if it's running rich at idle definitely clean the throttlebody. I cleaned mine on my truck at 49,000 and it was fairly dirty. Thread for that here.
     
  13. May 21, 2017 at 4:21 AM
    #13
    chightower

    chightower Active Member

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    07 PreRunner, Cab and 1/2, TRD, 6 Speed manual transmission, 2WD, V6, 65k miles, sick AF.
    Not much yet, but do have Flowmaster exhaust, with Rockford Fosgate P600.1Bd 600 RMS Mono amp for my 12" P3 with custom box and a Punch P400-4 Four Channel amp for my mids and highs running 100 watts per channel and have two speakers on each channel, not to mention 6 more hooked to the 4 channels from the headunit as well....Hopefully soon will be a body lift with new tires, and eventually the actual suspension...
    Dude! Mine's doing the same thing! I keep thinking I'm paranoid or mis-diagnosing, or mis-hearing, or something because everyone says it sounds fine, but, I really don't know....I don't think it sounds healthy at all. If you're like me, I would like to think that I know when it doesn't sound like it's running up to it's best performance. For me, it seems like a multitude of things, not only the noise yours is making, but also a much louder squeak that sounds like a belt, but ONLY when idle and goes away when i depress the clutch pedal. Also weird electrical things....I'm not a Toyota Mechanic, but I sure do hope someone can point me in the right direction....P.S. I finally found someone with a OBDII Reader and got 12 codes!!! Including the following:

    any solutions u find yet???

    20170520_150756.jpg
    20170520_150905.jpg
    20170520_150857.jpg
    20170520_150949.jpg
    20170520_150921.jpg
    20170520_150959.jpg
    20170520_150913.jpg
    20170520_150927.jpg
    20170520_151015.jpg
    20170520_150938.jpg
    20170520_151025.jpg
     
    Last edited: May 21, 2017
  14. May 21, 2017 at 5:25 AM
    #14
    80schild

    80schild Well-Known Member

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    I'd start by changing the thermostat, it could be stuck open causing that P0125 code. If the ECM thinks the engine isn't up to operating temp it'll keep dumping in more fuel to try to get it warmed up. If it's not the thermostat it could be the temp sensor giving a false reading as well.

    All of the other codes could be related to that one.
     
  15. May 21, 2017 at 9:58 PM
    #15
    KUATO

    KUATO [OP] Well-Known Member

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    Dp these 4.0 tacomas get a CEL for all codes? The older Tacomas usually always had a bad oxygen sensor and lots of times no CEL
     
  16. May 21, 2017 at 11:42 PM
    #16
    chightower

    chightower Active Member

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    07 PreRunner, Cab and 1/2, TRD, 6 Speed manual transmission, 2WD, V6, 65k miles, sick AF.
    Not much yet, but do have Flowmaster exhaust, with Rockford Fosgate P600.1Bd 600 RMS Mono amp for my 12" P3 with custom box and a Punch P400-4 Four Channel amp for my mids and highs running 100 watts per channel and have two speakers on each channel, not to mention 6 more hooked to the 4 channels from the headunit as well....Hopefully soon will be a body lift with new tires, and eventually the actual suspension...
    Few things I checked today: I don't know if you have checked any of these too, but may help.

    A bad resistor or connection at the blower motor couldn't give all these codes could they? That effect the way our motors are sounding harsh, overrun, lagging, and causing the misfires, poor voulme, mis reading at radiator, etc...Or is that the result of something greater, down the line, instead of the cause of all the rest? I took out my blower resistor today and noticed that it was all brown and looked burnt at the white/blue wire...damn I need a wiring diagram...but I've read that replacing the resistor helps with the AC, so not sure if that helps the rest. But I did notice the few hoses on the back of the engine, were super hot, maybe the hottest ones besides the radiator main hose and the oil filter housing. IDK, the whole f'n thing is hot as f. Can't believe it didn't show me a light or tell me the temp was high, it's freakin burning....I guess I'll find out how to test the resistor, but it's all corroded too so i'm guessing I'll need a new one. Hope that burnt wire isn't anything serious...
     
  17. May 21, 2017 at 11:46 PM
    #17
    chightower

    chightower Active Member

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    07 PreRunner, Cab and 1/2, TRD, 6 Speed manual transmission, 2WD, V6, 65k miles, sick AF.
    Not much yet, but do have Flowmaster exhaust, with Rockford Fosgate P600.1Bd 600 RMS Mono amp for my 12" P3 with custom box and a Punch P400-4 Four Channel amp for my mids and highs running 100 watts per channel and have two speakers on each channel, not to mention 6 more hooked to the 4 channels from the headunit as well....Hopefully soon will be a body lift with new tires, and eventually the actual suspension...
    No CEL, and I just passed smog two weeks ago....but it was still having these problems then. I had failed the smog once for EVAP not ready. Dude said it was cause I had just got a new battery that day, and didn't know about drive cycle or whatever....So i went back a few days later, and it passed, and drove it down to LA, and it was killer, even got better gas mileage than I ever have gotten before on the same trip so I was stoked...But then I started noticing how hot it was getting and the idle sound louder and louder....
     
  18. May 22, 2017 at 3:17 AM
    #18
    80schild

    80schild Well-Known Member

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    I did a little researching and apparently that P2610 code is a fault within the ECM and usually requires its replacement. I'd start searching salvage yards to try to find a new computer. It wouldn't hurt to check the wiring harness going to it first though, make sure no chewed wires or loose connections.
     
  19. May 23, 2017 at 4:54 PM
    #19
    chightower

    chightower Active Member

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    07 PreRunner, Cab and 1/2, TRD, 6 Speed manual transmission, 2WD, V6, 65k miles, sick AF.
    Not much yet, but do have Flowmaster exhaust, with Rockford Fosgate P600.1Bd 600 RMS Mono amp for my 12" P3 with custom box and a Punch P400-4 Four Channel amp for my mids and highs running 100 watts per channel and have two speakers on each channel, not to mention 6 more hooked to the 4 channels from the headunit as well....Hopefully soon will be a body lift with new tires, and eventually the actual suspension...
    Check it...found this bullshit today...I'm gonna put all my shit back together zip tie this up and go down to the muffler shop that did it...could that possibly be causing all those codes?

    20170523_122448.jpg
     
  20. May 23, 2017 at 5:37 PM
    #20
    fxntime

    fxntime Well-Known Member

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    Noisier then normal, I wonder if your VVT oil feed is partially plugged up.

    A broken exhaust holder isn't going to cause a code.
     

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