81 mk1 supra 5me running issue

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  1. #1
    Junior Member
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    81 mk1 supra 5me running issue

    Hey guys ive been trying to figure this car out for a while, at first it would not start after sitting for some time.
    I changed rotor, spark plugs and plug wires, cleaned the cap and it started and idled smoothly.
    After about a minute or so it shuts off

    If you have any info or have had similar issue please let me know how you fixed this problem.. Would love to see this car drive again.

  2. #2
    CelicaSupra.com Member
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    How long will it idle for? How does it shut off? Does die like you turned the key off or does it struggle for a moment before dying?
    1981 Celica Supra - 5ME
    1981 Celica Supra - 5MTE
    1985 Cressida Wagon - 5MGE
    1981 Kawasaki KZ1100
    1995 GMC Jimmy

  3. #3
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    Runs for about 2-5mins shuts off no struggle like i turned the key

  4. #4
    CelicaSupra.com Member 4SFED's Avatar
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    Check for vacuum leaks. It's like a spaghetti bowl under the hood of a Mark I with all the vacuum lines. A vacuum leak from a cracked or broken rubber or plastic intake lines will cause rough running and idle issues.
    Dave Harrison

    current lineup and year acquired:

    '85 white Mark2 7mgte 5sp 1990
    '85 white Mark2 7mgte Auto 2009
    '84 maroon Mark2 6mge 5sp 2013
    '85 black Mark2 2jzge 5sp 2015
    '86 SDR Mark2 7mgte 5sp 2016

    Hidden Content Originally Posted by cheappower82 Hidden Content
    Guess you have the magic touch; touch mine please?!

  5. #5
    CelicaSupra.com Member
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    Does it rev okay during those 2-5 mins?
    1981 Celica Supra - 5ME
    1981 Celica Supra - 5MTE
    1985 Cressida Wagon - 5MGE
    1981 Kawasaki KZ1100
    1995 GMC Jimmy

  6. #6
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    Revs ok nothing obvious, no hesitations. I was pretty amazed when it fired up

  7. #7
    CelicaSupra.com Member
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    Edmonton, AB
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    Once you get it running, start wiggling the wires coming off the positive battery post, especially the fusable links. I've had a flakey connection there before that caused it to die randomly.
    1981 Celica Supra - 5ME
    1981 Celica Supra - 5MTE
    1985 Cressida Wagon - 5MGE
    1981 Kawasaki KZ1100
    1995 GMC Jimmy

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