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Finally, Some Good News

Discussion in '1st Gen Tundras (2000-2006)' started by tdrich7, Sep 27, 2021.

  1. Sep 27, 2021 at 2:52 PM
    #1
    tdrich7

    tdrich7 [OP] New Member

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    84
    Vehicle:
    2006 Tundra DC 4wd SR5
    Wanted to share my story here in case it can help someone else who experiences this same problem...

    I've pretty much been at my wits end with this truck since I bought it back in April. From the moment I got it home I've been dealing with a phantom PS leak and a large or small puff of smoke when I start it up. I figured I'd have to learn to deal with the smoke as long as I'm not burning too much oil and just pray for the best with the engine seals, but the PS leak was driving me crazy.

    I put the truck up on jack stands, had my wife turn the wheel while I'm laying under the car - nothing. Take it to the mechanic, and he did the same thing with his buddy and can't find anything either. He tightens up the clamps hoping he can fix it. Still slowly leaking. I call another mechanic - he tells me it's gotta be something simple - replace the reservoir because maybe it's letting air in. Did that, still leaking. Finally I give up and take it to the stealership. I figure maybe their fancy diagnostic tools can figure out my problem. They look at it for an hour and tell me it's probably leaking at the reservoir, that will be $1300 to replace all the lines. Yeah no thanks, back to square one.

    I go to pick up the truck - it smokes on start up, but worse than normal this time. I get out on the road and it's still coming out. I look out my mirror as I'm pressing on the gas - sure enough smoke is coming out as I accelerate. WTF? It's so bad I can't even see behind me. I pull over and get a tow back to the dealership because 1) I don't want to ruin the truck any more and 2) It's a serious hazard to me and everyone else the amount of smoke blowing out my exhaust. Could this get any worse?

    I finally get a call this morning - they have great news for me. The power steering air control valve failed. My power steering fluid was getting sucked into the engine air intake this whole time! Not only was it taking all of my PS fluid without any sign or warning of what was going on, it was also what was causing my truck to smoke!

    The moral of this story is: if you have a phantom PS leak AND your truck is smoking on start up - check this valve!

    Very happy I'm going to be able to enjoy this truck for the first time in a long time.
     
  2. Sep 27, 2021 at 3:08 PM
    #2
    rock climber

    rock climber New Member

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    Colorado
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    2001 Sequoia 4X4, 2000 AC 4X4
    Thanks for posting! I didn't know our trucks had such a thing.
     
  3. Sep 27, 2021 at 3:15 PM
    #3
    N84434

    N84434 In the Frozen Tundra

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    Jim
    Milwaukee WI.
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    2001 Limited TRD
    Excellent..!
     
    Tacopashka and tdrich7[OP] like this.
  4. Sep 27, 2021 at 3:23 PM
    #4
    Kimosabe

    Kimosabe Slacker

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    Chris
    Sun Valley, Idaho
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    03 Tundra AC TRD
    Glad you got it figured out.
     
    tdrich7[OP] likes this.
  5. Sep 27, 2021 at 3:28 PM
    #5
    shifty`

    shifty` He Switched From Rum to Whiskey

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    ATL
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    '06 AC Limited V8/4WD
    (see signature for truck info)
    Tacopashka and tdrich7[OP] like this.
  6. Sep 27, 2021 at 3:55 PM
    #6
    tdrich7

    tdrich7 [OP] New Member

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    2006 Tundra DC 4wd SR5
    Definitely could be. The one thing I noticed was that the amount of smoke I got was *not* a function of how long the truck sat like I assume it would be with bad valve seals. I could drive mine, let it sit for 20 minutes, and then start it back up and get a big puff of smoke. This had me starting to think it was a bad fuel injector, but I'm stoked it was my power steering problem the whole time.
     
    shifty`[QUOTED] likes this.
  7. Sep 27, 2021 at 4:10 PM
    #7
    shifty`

    shifty` He Switched From Rum to Whiskey

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    Vehicle:
    '06 AC Limited V8/4WD
    (see signature for truck info)
    Bad/leaky fuel injector is what I'd seen as the cause of some other folks' issues. Also head gasket. Even some claims that a leaky fuel injector hydrolocked the motor with fuel after the truck sat for XYZ period of time.

    Stoked to see it be something so simple. But that little bastard is expensive for new OEM!
     
    tdrich7[QUOTED][OP] likes this.
  8. Sep 27, 2021 at 4:51 PM
    #8
    tdrich7

    tdrich7 [OP] New Member

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    Neither was their time spent diagnosing it, but at this point it's a small price to pay for the stone that's gonna kill both birds.
     
    GODZILLA and shifty`[QUOTED] like this.
  9. Oct 5, 2021 at 9:22 PM
    #9
    baraynavab

    baraynavab Toyo Junkie

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    2007 Tundra CrewMax 4x4 5.7L V8
    I had this happen to me. Exact symptoms. PS fluid tank would run dry in 2-3 days without any signs of leakage. White smoke at startup. Chased the problem for a whole month. Was cleaning out the throttle sensor when the air intake had lots of PS fluid stuck into it. Thought it was odd but didnt think to much of it. Did a gas check to see if the Head gasket was blown... Finally stumbled upon a thread saying PS air control valve gone bad can cause this. Swapped the valve and quickly fixed the issue.
     
  10. Oct 5, 2021 at 9:57 PM
    #10
    Desert Dog

    Desert Dog Nobody rides for free

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    2001 SR5 AC 2WD 4.7l
    Bilstein 5100's, SPC UCA's, ATS HD leaves
    Very interesting. I'll have to put this in the memory bank.
     
    FirstGenVol and Diablo169 like this.
  11. Oct 5, 2021 at 10:02 PM
    #11
    Wahayes

    Wahayes Older I get the wiser I realize my dad was

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    325/60r20 falken at3w, 2.25 dobinsons ,20x9 +20 fuel torque wheels, leer xr100, bmc
    Is this just a 4.7 issue or can this happen with 2.5 gen 5.7 as well?
     
  12. Oct 5, 2021 at 10:24 PM
    #12
    Diablo169

    Diablo169 ROKRAPR

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    Max
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    2” Lift, Bilstein 5100’s and 885’s, Rear 5100’s Icon 3 Leaf Pack and Firestone Air Bags with Daystar Cradles. Spider Trax 1.25” Wheel Spacers, Factory Wheels wrapped with Toyo 285/70r17 AT2’s.
    Yeah really. If it’s an easy swap, I may just do it as maintenance, I’m at 285k, might not be a bad thing to replace :rolleyes:
     
  13. Oct 5, 2021 at 10:34 PM
    #13
    Tundra2

    Tundra2 Zoinked

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    Having no knowledge of the 5.7L, and only just begun my understanding of the 4.7L. I would say this is a 4.7L issue only unless your 5.7L uses the same power steering pump.
     
  14. Oct 5, 2021 at 10:37 PM
    #14
    assassin10000

    assassin10000 New Member

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    Andrew
    Northern CA
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    '05 SR5 AC
    Remote start alarm Removed keyless entry piezo Qi phone charger & dash mount Subaru underseat subwoofer Hopkins Easylift Steering wheel audio controls No-tenna mod 3/4 adhesive anti-rattle shim D/S door
    Nah. Any vehicle with a vacuum actuated valve on the high pressure p/s line can have this happen.
     
    Tundra2[QUOTED] likes this.
  15. Oct 5, 2021 at 10:38 PM
    #15
    Tundra2

    Tundra2 Zoinked

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    Then pay me no mind.
     
  16. Oct 6, 2021 at 9:44 PM
    #16
    Desert Dog

    Desert Dog Nobody rides for free

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    Bilstein 5100's, SPC UCA's, ATS HD leaves
    The key to diagnosing issues with smoke involved and isolating their cause(s) is the color of the smoke. Oil-related will always have a bluish tint to it, whereas fuel-related will be more white.
     
  17. Oct 10, 2021 at 7:12 PM
    #17
    shifty`

    shifty` He Switched From Rum to Whiskey

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    '06 AC Limited V8/4WD
    (see signature for truck info)
    And power steering fluid is ??? :rofl:

    I kid, but ... sometimes it's not always easy to tell the difference in smoke coloring. Takes quite a bit of smoke!
     
    Jack McCarthy and tdrich7[OP] like this.
  18. Jan 16, 2023 at 8:50 AM
    #18
    shhernandez74

    shhernandez74 New Member

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    2017 Barcelona Red Tundra 4x4 SR5
    FRAC Driver side handle TRD Sway Bar Pop Lock Led Lights Seat Warmers Katzkin Bumper Step
    Looking at replacing this valve here soon, do you have to drain the PW reservoir?
     
  19. Jan 16, 2023 at 9:13 AM
    #19
    shifty`

    shifty` He Switched From Rum to Whiskey

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    '06 AC Limited V8/4WD
    (see signature for truck info)
    Trace the two lines attached to it and you'll have the answer to your question.

    You should find there's no line going back to liquid side the power steering system. Only air/vacuum. The video a few replies up shows you the location.

    Here is the test process to verify whether or not the valve is bad, before you blow all that cash on a replacement valve - legit OEM units were really damn expensive last time I checked, and I probably wouldn't want to go non-OEM on that part.

    And don't buy one on scAmazon or fleaBay, 50/50 chance (or worse) you'll end up with a very very-legit looking counterfeit part.
     
    Last edited: Jan 16, 2023
    shhernandez74[QUOTED] likes this.
  20. Jan 16, 2023 at 9:24 AM
    #20
    shhernandez74

    shhernandez74 New Member

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    FRAC Driver side handle TRD Sway Bar Pop Lock Led Lights Seat Warmers Katzkin Bumper Step
    thanks for the response! Yup the valves are still pretty pricey. I got lucky and snagged a few at my local junkyard, however each time I took one off there was a ton of PW fluid that drained out as well. That’s why I was wondering if I should drain the reservoir or if the fluid that came out was what was left in the pump. The previous owner deleted the valve (stuck a bolt in the opening) so I can’t test it without installing a new one. DCA388EE-3153-4F0E-B071-A8F58886FA9A.jpg
     
    shifty`[QUOTED] likes this.
  21. Jan 18, 2023 at 5:43 AM
    #21
    importxpresions

    importxpresions New Member

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    2001 SR5 AC Imp Jade Mica 2WD
    good to know about this potential issue
     
    shhernandez74 likes this.

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