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What is this?? Engine bay mystery

Discussion in '2nd Gen Tundras (2007-2013)' started by NWTundra11, Oct 8, 2017.

  1. Oct 8, 2017 at 9:18 AM
    #1
    NWTundra11

    NWTundra11 [OP] New Member

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    Looking at purchasing this 2010 4.6L Tundra, 108,xxx miles.

    Car history shows 1 accident (slight damage, minor, no airbags deployed) to Left Front.

    Spray/corrosion of some sort, seems to originate from battery area. Could a battery spray or slosh and create this?

    Thoughts?

    IMG_4350.jpg
    IMG_4351.jpg
    IMG_4352.jpg
    IMG_4353.jpg
     
    Last edited: Oct 9, 2017
  2. Oct 8, 2017 at 9:19 AM
    #2
    NWTundra11

    NWTundra11 [OP] New Member

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    Would you shy away from the purchase because of this?
     
  3. Oct 8, 2017 at 9:26 AM
    #3
    TheBeast

    TheBeast The Beach

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    Tundras batteries are known to corrode...quick...
    Also check cam towers for oil leaks
     
  4. Oct 8, 2017 at 9:27 AM
    #4
    TheBeast

    TheBeast The Beach

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    mine looked like that at some point..I cleaned the area, change the metal clamps and new battery.
     
  5. Oct 8, 2017 at 9:43 AM
    #5
    Wynnded

    Wynnded What MPG...

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    Looks to me like some battery corrosion got hosed off and sprayed into the engine bay.
     
  6. Oct 8, 2017 at 9:59 AM
    #6
    NWTundra11

    NWTundra11 [OP] New Member

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    hey good call on that
     
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  7. Oct 8, 2017 at 10:00 AM
    #7
    NWTundra11

    NWTundra11 [OP] New Member

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    thanks

    cam towers leak from front or back on this motor?
     
  8. Oct 8, 2017 at 10:19 AM
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    TheBeast

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  9. Oct 8, 2017 at 10:24 AM
    #9
    NWTundra11

    NWTundra11 [OP] New Member

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    Gotcha.

    Anything else come to mind at the 100k mile mark on these rigs?

    Sale price I have them down to is 18,500.
     
  10. Oct 8, 2017 at 10:28 AM
    #10
    TheBeast

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    seems a bit high.
    Also check AIP pumps. they tend to fail on early models.
     
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  11. Oct 8, 2017 at 11:01 AM
    #11
    duece292

    duece292 Appalachian American

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    My thoughts as well. Looks like someone hosed or brushed the corrosion off of the terminals. That stuff splatters and stains the hell out of everything.
     
  12. Oct 8, 2017 at 11:45 AM
    #12
    NWTundra11

    NWTundra11 [OP] New Member

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    how do you check these?
     
  13. Oct 9, 2017 at 2:07 PM
    #13
    NWTundra11

    NWTundra11 [OP] New Member

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    So...

    Gave it a look again today and sure enough, drivers side cam tower/valve cover gasket has a nice little leak in the rear corner. Looks like it has cause some build up on the underside of the crossmember as well from the oil catching the wind and coating the crossmember. Nothing major obviously but an $1800 fix at the Toyota Dealer locally.

    Unless they come down a chunk in price i dont feel like a $20k truck should leak a drop...
     
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  14. Oct 9, 2017 at 2:21 PM
    #14
    tmart

    tmart New Member

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    I wouldn't pay that price, that's a lot of mileage and the smaller motor. I'd keep looking
     
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  15. Oct 9, 2017 at 2:31 PM
    #15
    NWTundra11

    NWTundra11 [OP] New Member

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    Thanks. I have em down to 18k now actually (20 with taxes and license fees)

    If they dropped it the cost of the service for that leak I might be tempted
     
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  16. Oct 9, 2017 at 2:55 PM
    #16
    TheBeast

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    yep it is very common. Gives you some leverage on the sale ;)
     
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  17. Oct 9, 2017 at 2:57 PM
    #17
    FlashCulprit

    FlashCulprit ColoradoTJ's whipping boy/Gino's illegitimate son.

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    It would map a code from what I remember. So a check engine light could be on if this was the case. If it was cleared you'd need to unplug the battery for a bit, reset and drive it for a bit to get it to "re-code". Alternatively you would have to pull the AIP/S from the truck to confirm and clean. The pumps are located in two different spots the 4.7 valves and pump are under the intake manifold.

    Should note: This wont damage or detriment your truck in any way if failing, however, it's an EPA required device and can cause emissions failure.
     
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  18. Oct 9, 2017 at 3:22 PM
    #18
    T-Rex266

    T-Rex266 Independentoffroad who? That's cute. Staff Member

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    128K less mileage
    Bigger engine
    Higher re-sale
    $15k

    I would keep looking or get this

    A110575E-C0EF-4765-BF38-CC69157B852B.jpg
     
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  19. Oct 9, 2017 at 3:40 PM
    #19
    kenomouth64

    kenomouth64 New Member

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    Hold the Line! If you are not holding the line, abandon your ship. Destruction is inevitable without more to hold the line!
    Nothing to be overly concerned with...
     
  20. Oct 9, 2017 at 3:55 PM
    #20
    NWTundra11

    NWTundra11 [OP] New Member

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    Thanks all - search will continue. Have a line on a 2011 with 85,000 miles for not much more
     
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  21. Oct 9, 2017 at 4:02 PM
    #21
    mdavis

    mdavis I need a beer.

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    Not a snow balls chance in hell I would pay $20k for a truck with 208,000 miles on it and being the 4.6l.
     
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  22. Oct 9, 2017 at 4:05 PM
    #22
    NWTundra11

    NWTundra11 [OP] New Member

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    108,000
     
  23. Oct 9, 2017 at 4:06 PM
    #23
    T-Rex266

    T-Rex266 Independentoffroad who? That's cute. Staff Member

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    Your OP says 208
     
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  24. Oct 9, 2017 at 4:10 PM
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    Scpringle

    Scpringle New Member

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    keep looking I got a 15 4.6L SR DC with 28K on it for 23,000$
     
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  25. Oct 9, 2017 at 7:33 PM
    #25
    Ericsopa

    Ericsopa Old man and the sea

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    Yeah...I had (have) exactly the same thing on my '13 CM when I bought it. Always assumed it was from the battery.
     
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  26. Oct 12, 2017 at 5:35 AM
    #26
    JTP

    JTP The Big Black Moose

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    Anyone look at the battery tray under the battery?

    That corrosion might wind up spraying all over the place like that with rain coming through the grill at speed too.
     
  27. Oct 12, 2017 at 5:35 AM
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    JTP

    JTP The Big Black Moose

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    Ditto
     
  28. Oct 21, 2017 at 2:51 PM
    #28
    badams1897

    badams1897 New Member

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    My 2013 did the same thing as well. I need to get an Interstate battery put in. Curious anyone know if Toyota will pay for a new one? I have warranty until 85k miles.
     
  29. Oct 21, 2017 at 5:57 PM
    #29
    BIGUGLY

    BIGUGLY I the SheepDog. I have the capacity for Violence.

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    Buy a better battery, interstate, or optima. I had horrible luck with Napa branded batteries off gassing and corroding areas around the battery. Asked a mechanic friend and he stated all low price batteries will start your vehicle but there not sealed as well as some of the premium brands. I switched to optima and never again had any corrosion issues.
     
  30. Oct 21, 2017 at 6:50 PM
    #30
    Wynnded

    Wynnded What MPG...

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    I think batteries are considered consumable.
     

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