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hard start after sitting 10-15 min

Discussion in '1st Gen. Tacomas (1995-2004)' started by flyboy20, Jun 4, 2012.

  1. Jun 4, 2012 at 3:55 PM
    #1
    flyboy20

    flyboy20 [OP] Member

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    Hey guys. My 96 Taco is hard to start after sitting idle for 10-15 minutes. I've read some discussion concerning hard hot starts but could not find my particular situation. Has anyone else run into this problem. I have the ol' 24E in mine. 240k and still strong. Thanks
     
  2. Jun 4, 2012 at 3:59 PM
    #2
    aznutx

    aznutx Well-Known Member

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    so is it easy to start after 15mins? is that the question? or you mean any time after 10mins
     
  3. Jun 4, 2012 at 4:10 PM
    #3
    flyboy20

    flyboy20 [OP] Member

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    It starts easily immediately after shutoff. But if it sits for 10-15 it acts as if it is flooded. If I allow it to cool off for a while (@ 1 hour) it starts fine. It does this particularly on hot days.
     
  4. Jun 4, 2012 at 4:12 PM
    #4
    scotrinaf

    scotrinaf Well-Known Member

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    Pardon my lack of knowledge, but does this have injectors or a carburetor?
     
  5. Jun 4, 2012 at 4:12 PM
    #5
    trmarshall1

    trmarshall1 The Least Interesting Man In The World

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    Had the same issue with my 98 which also had the 2.4, never figured out what the problem was:notsure: Good luck.
     
  6. Jun 4, 2012 at 4:16 PM
    #6
    aznutx

    aznutx Well-Known Member

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    that's weird! but seems another person has had this experience so you're not alone, has it always done this? or recently, maybe leaky fuel injector
     
  7. Jun 4, 2012 at 4:17 PM
    #7
    TACOMABOSS

    TACOMABOSS Well-Known Member

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    injectors
     
  8. Jun 4, 2012 at 4:24 PM
    #8
    scotrinaf

    scotrinaf Well-Known Member

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    Have you had the injectors cleaned???
     
  9. Jun 4, 2012 at 4:25 PM
    #9
    flyboy20

    flyboy20 [OP] Member

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    Throttle body injected. I've experienced the problem for @ 4 years. It's obviously not a huge problem since I've learned to work around it. But occasionally I'll stop somewhere that takes me 10-15 min before I'm off again and it happens.
     
  10. Jun 4, 2012 at 4:28 PM
    #10
    flyboy20

    flyboy20 [OP] Member

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    Haven't had the injectors cleaned since it runs great otherwise.
     
  11. Jun 4, 2012 at 4:30 PM
    #11
    98tacoma27

    98tacoma27 :POOPCORN: Staff Member

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    2RZ? (2.4l)
     
  12. Jun 4, 2012 at 4:33 PM
    #12
    scotrinaf

    scotrinaf Well-Known Member

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    Just a physics theory...

    If the injectors are partially clogged, the heat may be causing the debris in them to swell causing tighter clogging... Once the engine cools off, then the swelling goes down...

    The reason it would re-crank right away is that the gas already there hasn't had time to dissipate, however, in the 10-15 minute time frame, the gas does have time to dissipate causing it not to crank, and new gas cant' pass through as easily for the startup fuel needed...

    I'm no expert, but that's my theory...
     
  13. Jun 4, 2012 at 4:36 PM
    #13
    flyboy20

    flyboy20 [OP] Member

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    2RZ 2.4 is correct.
     
  14. Jun 4, 2012 at 5:01 PM
    #14
    98tacoma27

    98tacoma27 :POOPCORN: Staff Member

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    Cap & rotor or coil packs?
     
  15. Jun 5, 2012 at 7:28 AM
    #15
    MowTaco

    MowTaco Well-Known Member

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    Coil packs... at least there are on mine. Don't know if that changed in 01 or not but I doubt it.
     
  16. Jun 5, 2012 at 8:06 AM
    #16
    98tacoma27

    98tacoma27 :POOPCORN: Staff Member

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    Early tacos had cap and rotors before they went to full coil packs.
     
  17. Jun 5, 2012 at 10:24 AM
    #17
    Cheesycook

    Cheesycook Geek with a gun

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    I would start with a seafoam treatment. It runs fine at idle and at speed?
     
  18. Jun 5, 2012 at 10:30 AM
    #18
    swsl

    swsl Member

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    I've had this issue for years. It is common and no clear remedy for many. It does seem that different failures can cause the same symptom. The local dealer says it's a problem in the fuel system - regulator, pump, filter and they swap 'em out until fixed. In many other cases, I think it's a sensor- computer issue though not clear about the mechanism. In my case, pulling the connector to the air temperature sensor will allow it to start right up in that situation, showing that the computer is getting bad info or conflicting info. Or else it's a bug in the programming. I swapped out the sensor but it did not fix the problem. I tested that and all other temperature related sensors, but all test fine (as specified in the FSM). I'm always looking for more clues, but for now, I just leave the air temp sensor disconnected in hot weather and problem solved. Don't know what it does to engine efficiency, but seems to run the same otherwise. hope that helps.
     
  19. Jun 5, 2012 at 12:55 PM
    #19
    imatacomaowner

    imatacomaowner Well-Known Member

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    My 98 does this occasionally. Only after I drive it and park, then stop for a short time (1-10 mins). It always restarts after a 10-30 second wait, but its annoying. Even if I rev the engine, put it in first, and drive, if it wants to die, as soon as it hits idle again it dies....
     
  20. Jun 5, 2012 at 4:56 PM
    #20
    isu2014

    isu2014 RAT Products

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    View the build. Too much to list.
    My 96 2.4l did this. Never solved it before it was bought back but sea foam didn't help. Spark plugs and wires were good and only 115,000 miles.
     
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