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Runs for 5 seconds....then shuts off...

Discussion in '4 Cylinder' started by VLANDER005, Dec 21, 2009.

  1. Dec 21, 2009 at 6:28 AM
    #1
    VLANDER005

    VLANDER005 [OP] Well-Known Member

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    Again, I want to thank everyone that assisted me with my head gasket and not starting issue!

    This isn't a major issue, but here goes. As most of you know I finally was able to get my truck running yesterday afternoon after chaning my first head gasket and not keeping adequate track of the original TDC timing. Which causes numerous other issues that I had to work through. Now when Is start the truck it will stall 2-3 times after about 5-10 seconds of running. If I keep the RPM's around 2k and wait about 30 seconds it will idle just fine. This only happens when you turn the truck off and try to start it again. It does it in both warm and cold conditions. Code P0336 is showing up...crankshaft position sensor. The connection seems to be tight and I didn't have this code before the tear down.
     
  2. Dec 21, 2009 at 1:03 PM
    #2
    98tacoma27

    98tacoma27 is gooder 'en chicken Moderator

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    Check your FSM for the camshaft sensor. It will tell you how to check the sensor itself. If the sensor checks ok, then there is a possibility the distributor isn't quite right.
     
  3. Dec 21, 2009 at 1:05 PM
    #3
    98tacoma27

    98tacoma27 is gooder 'en chicken Moderator

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    My other question (can't remember from the other thread) is did you replace the distibutor? If you did, is it a Denso?
     
  4. Dec 21, 2009 at 1:06 PM
    #4
    The Parts Whore

    The Parts Whore Slinging parts since '03

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    Thanks for doing all the work for me Ben. :D jk
     
  5. Dec 21, 2009 at 1:13 PM
    #5
    98tacoma27

    98tacoma27 is gooder 'en chicken Moderator

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    :thumbsup:

    The FSM says in this order:

    Check valve timing
    Check distributor instllation
    Check and replace ECM (which I doubt is your issue)

    You also may want to double check your grounds are tight.
     
  6. Dec 21, 2009 at 3:16 PM
    #6
    VLANDER005

    VLANDER005 [OP] Well-Known Member

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    The distributor is original, along with the coil and crank sensor. I will double check the grounds but I am pretty sure they are all tight...but we have all heard that statement before. I haven't verified the timing but it is just running so well. Why would I get a code for the crank sensor if the valve timing or dist is off?
     
  7. Dec 21, 2009 at 10:57 PM
    #7
    dually

    dually Low and slow

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    Not as many as the 98..
    check your timing.. even a tooth off would let it run for a little while and shut off...
     
  8. Dec 22, 2009 at 4:51 AM
    #8
    98tacoma27

    98tacoma27 is gooder 'en chicken Moderator

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    The ECU needs the crank sensor input to determine the timing. The ECU will electronically advance and retard the timing based on this signal. So if the timing is off from the start, the ECU cannot correct the timing for the conditions. When the ECU tries, it maybe putting the timing out of range and causing it to stall/die. It thinks it lost the crank signal.

    It's easy for a motor to run smooth or sound good when the timing is off. Hook it up to a dyno and you can see the big difference even one or two degrees of timing adjustment can yeild.

    As Dually said, check it with a timing light.
     
  9. Dec 22, 2009 at 6:50 AM
    #9
    VLANDER005

    VLANDER005 [OP] Well-Known Member

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    I will do that. So....being the first I've played with a timing light...I know the FSM states that the timing should be between 3-7 degrees. So lets say its at 10 degrees. That means it is 3 or so degrees advanced and I should rotate the distributor clockwise one tooth to get it within spec? Am I even warm here or way off base?
     
  10. Dec 22, 2009 at 6:57 AM
    #10
    98tacoma27

    98tacoma27 is gooder 'en chicken Moderator

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    It should look like this. Get it as close as possible.

    96timing.jpg
     
  11. Dec 22, 2009 at 7:05 AM
    #11
    VLANDER005

    VLANDER005 [OP] Well-Known Member

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    It should look like that at TDC on compression? That looks like its pointing between # 1 and # 3 if I'm not mistaken. Wouldn't it be sparking too late at that point since the distributor rotates counter clockwise? I do remember seeing that one tooth was different on the distributor and wondering why.
     
  12. Dec 22, 2009 at 7:28 AM
    #12
    98tacoma27

    98tacoma27 is gooder 'en chicken Moderator

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    Yes, remember,when you install the distributor it will turn.
     
  13. Dec 22, 2009 at 8:07 AM
    #13
    VLANDER005

    VLANDER005 [OP] Well-Known Member

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    I'll give it a shot. Side note: my gas pedal used to stick the first time I pushed it and now it does it everytime. Probably a linkage adjustment huh.
     
  14. Dec 22, 2009 at 8:26 AM
    #14
    98tacoma27

    98tacoma27 is gooder 'en chicken Moderator

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    That's a sign the throttle body may nedd cleaned. Your butterfly plate may be sticking.
     
  15. Dec 28, 2009 at 12:54 PM
    #15
    VLANDER005

    VLANDER005 [OP] Well-Known Member

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    Okay...I'm back for the holidays. I so far rotated the distributor towards me by one tooth and the truck wouldn't start. I put it back to where it was and havnen't had a change to try rotating it one tooth away from me to see if the check engine light will go out and it and idle without stalling.
     
  16. Dec 31, 2009 at 12:49 PM
    #16
    VLANDER005

    VLANDER005 [OP] Well-Known Member

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    The truck is running great now. I advanced the distributor one tooth and the check engine light went off, the stalling problem went away and its running great. More power than before as well!! Thanks again for all of the help!
     
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