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Ask the Toyota mechanic!

Discussion in 'General Tundra Discussion' started by T-Rex266, Aug 15, 2015.

  1. Aug 16, 2022 at 5:26 PM
    #2671
    Wynnded

    Wynnded What MPG...

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    Rockies
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    2011 RCSB S/C'd 5.7L AWD Tundra
    OEM Upgrades: TRD PRO BBS Wheels TRD S/C, Viktor G Tune and +2 psi pulley TRD Front Sway Bar TRD Rear Sway Bar Fox TRD Pro Shocks Limited mirrors (auto darkening/backup camera/power fold/puddle lights) Limited Grill Mod Automatic Climate Controls Mod Automatic Headlamp Mod Sequoia Transfer Case Mod Sequoia Leather Steering Wheel Mod Sequoia Limited Gage Cluster Mod Sequoia LED Headlamp Upgrade Window Tint Fake Manual Transmission Mod 10" BAMufflers Stainless Catback Engine Block Heater Illuminated Ignition Key Ring Mod Deck Rail System w/cleats
    Normal behavior. :thumbsup:
     
    blackdemon_tt likes this.
  2. Aug 17, 2022 at 4:32 PM
    #2672
    blackdemon_tt

    blackdemon_tt Battery Slayer

    Joined:
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    TRD Sway Bar, Roll covers USA bed cover
    Awesome, thanks... Never seen it move before.. I mean I've seen it go higher.
     
    Wynnded likes this.
  3. Aug 23, 2022 at 6:27 AM
    #2673
    Svengalicanada

    Svengalicanada New Member

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    Yotalife..
    Hey how did you ever make out with this? I've been going through the same thing for three years or more. As soon as the electric fan starts up it stops..might be the fans clutch slipping
    I put some copper tubing on a lube spray bottle so I I could spray in behind the electric fan and it seemed to stop it for a few months ..
     
  4. Sep 7, 2022 at 9:06 AM
    #2674
    Airpower

    Airpower New Member

    Joined:
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    Vehicle:
    2011 Toyota Sequoia Limited 4X4
    TSS rims, N-Fab step bars
    Need some advice please.

    I have a 2011 5.7L Limited 4X4 Sequoia. I had an issue with intermittent rough idles, sluggishness on the highway, and one instance where the truck would not start and then miraculously started and ran for a couple more months.

    This weekend it wouldn't start again, I had been suspecting a failing fuel pump due to the above symptoms so I went ahead and replaced it with a FFV Delphi assembly.

    It started fine, runs well, but now after sitting for too long it has a longer than normal crank time. It's not terrible, only a couple of seconds longer than it should be, but there's clearly something wrong.

    I assume the fuel pump has a check valve on it somewhere, and my assumption is the fuel is draining back into the tank after it sits.

    I'm guessing the best way to test this theory is to hook up a pressure gauge on the rail, pressurize the system, then let it sit and monitor the pressure.

    Does anyone have any other suggestions? If it turns out to be a check valve, I am assuming it's on the pump assembly and I will have to remove the tank and swap it out again?

    If I do have to drop the tank again, is there any easier way to access the top of the fuel tank to disconnect the the fuel lines? When I pulled it this weekend getting the lines back on was rather difficult, especially because one line is very short.

    Thanks for the help.

    Best,
    AP
     
  5. Sep 7, 2022 at 9:55 AM
    #2675
    GODZILLA

    GODZILLA ASCM#1 Douchebag formerly known as 50 Buck

    Joined:
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    Adam
    Wyoming
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    2019 Cavalry Blue SR5 Crewmax
    RCI Skids and Sliders SCS Ray10 Wheels in Gunmetal Grey Falcon Tow/Haul Shocks by Terraflex Jomax ABS Sensor Guards
    Lots of things could cause that, but honestly with it being that new a dealership may be your best bet. For better troubleshooting more info might be helpful. Size of the trailer, general temp outside, speed you were towing at, tow haul engaged, gear used, etc.

    If you're just wanting to know about the fluid swap; you'll never hurt it doing a drain and fill. I know on the previous gen you would definitely want to change the fluid after the overheat light because of how high that threshold is set. Not sure where the 3rd gen threshold is and how much fluid degradation may have occurred.
     
  6. Sep 7, 2022 at 10:45 AM
    #2676
    Jtundra81

    Jtundra81 Just a member

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    How heavy were you towing
     
  7. Sep 22, 2022 at 4:11 PM
    #2677
    Kappaisa

    Kappaisa New Member

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    Hey everyone I tried searching through the thread with the search option looking for something like what I’m dealing with.

    i’ll keep it short
    2010 tundra base 4.6

    I got a misfire on cylinder five and cylinder six within one minute of start up
    Occasional misfire on cylinder four and cylinder seven.

    I have swapped coils around misfire doesn’t move
    I have swapped spark plugs around misfire doesn’t move
    I have swapped injectors around misfire doesn’t move
    I have checked compression and compression is between 170 and 185 on all cylinders (conveniently the 172 compression is on cylinder five)

    The truck had the catalytic converters stolen so I had a new full exhaust including Cats put on by the dealer. Hasn’t even been 12 miles since then and I’ve got for sure misfire cylinder five and six occasional misfire four and seven.

    none of the vacuum lines look corroded brittle or cracked. What am I missing? Something Toyota specific?

    valve covers are leaking a little bit of oil so I ordered valve cover gaskets and a new intake manifold gasket. They should arrive tomorrow

    $10 to whoever points me in the direction that solves my problem.
     
    FrostyTundra22 likes this.
  8. Sep 22, 2022 at 8:17 PM
    #2678
    FrostyTundra22

    FrostyTundra22 New Member

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    if you swapped coil and spark plugs and issue remains, Might be cables.
     
  9. Sep 22, 2022 at 11:42 PM
    #2679
    Kappaisa

    Kappaisa New Member

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    Play cables you mean the harness connector and associated wires?
    Honestly that’s not something that came to mind but it is something I will check. I’ll report back with what I find
     
  10. Sep 23, 2022 at 7:52 AM
    #2680
    FrostyTundra22

    FrostyTundra22 New Member

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    yes, that’s exactly right. Sometimes those could be the culprit.
     
  11. Sep 23, 2022 at 7:58 AM
    #2681
    e30cabrio

    e30cabrio I'm e30cabrio, I'm a modaholic

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    West Valley, Phoenix, Az.
    Vehicle:
    2010 Crewmax, 2013 Sequoia Limited
    Sequoia LED Headlights! D.T. L.T. headers, dual exh., BDX, S&B intake, 2018 seat skins.
    2013 Sequoia condenser fan sporadic failure when sitting for long periods causing the AC to blow warm.

    I have replaced the fan, can I fix the old one for a spare?
     
  12. Sep 28, 2022 at 10:57 AM
    #2682
    HewittTech01

    HewittTech01 Dont Replace SAIS, Bypass It!

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    Secondary Air Injection System Bypass Kit
    As I am sure you have found in your research the P0418 – SAIS Circuit/Relay ‘A’ Circuit Malfunction Bank 1. This is related to the Secondary Air Injection System and unfortunately an inevitable issue on Tundras. Below I have include a few recent threads about this failure prone system. Please do not hesitate to contact us if you have any questions.

    What Does the Secondary Air Injection System Do?
    https://www.tundras.com/threads/what-does-the-secondary-air-injection-system-do.113683/

    What Do My Secondary Air Injection Error Codes Mean?
    https://www.tundras.com/threads/what-do-my-secondary-air-injection-error-codes-mean.113686/

    How to Fix Secondary Air Injection System?
    https://www.tundras.com/threads/how-do-you-fix-the-secondary-air-injection-system.113688/
     
  13. Sep 28, 2022 at 11:00 AM
    #2683
    HewittTech01

    HewittTech01 Dont Replace SAIS, Bypass It!

    Joined:
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    Secondary Air Injection System Bypass Kit
    @Ruggybuggy Spot on! I recently post a new thread going into a little more detail about the SAIS. I hope this adds value to anyone looking to learn more.

    What Does the Secondary Air Injection System Do?
    https://www.tundras.com/threads/what-does-the-secondary-air-injection-system-do.113683/
     
    French Avocado and Wynnded like this.
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