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Thread: Starting woes

  1. #1
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    Starting woes

    My truck was very hard to start , so I had the lift overhauled . Now it starts first turn of the switch but after 3 seconds begins to misfire and then stops .It takes about 3 more attempts of 3 seconds rough running to come onto a steady run . The hand primer being pumped makes no difference to this . The hand primer can take about 3 pumps for me to hear the relief valve in the main unit, relieve. After it has started you can drive it all day fine , but after an overnight rest it goes back to the hard starting . any ideas ?

  2. #2
    Join Date
    Feb 2014
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    Sounds like you have an air leak in your fuel lines from the tank or a blocked sedementer
    Phil B

    Custodian of:
    1974 S3 swb wagon (sold)
    1978 S3 swb canvas
    48 749 '88 4x4 Perentie
    1985 County with 4BD1T

  3. #3
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    946
    Also check and clean the screen on the inlet to the injector pump
    Phil B

    Custodian of:
    1974 S3 swb wagon (sold)
    1978 S3 swb canvas
    48 749 '88 4x4 Perentie
    1985 County with 4BD1T

  4. #4
    Join Date
    Jan 2014
    Location
    Perth Western Australia
    Posts
    1,550
    I'm guessing an air leak as well.
    The fact it initially starts then misses, points to this.
    For the purposes of diagnostic change out the fuel filter, if you have done so recently.

    Also make sure the fuel shutoff solenoid is staying open. Purely from memory as I havent looked to see what solenoid the Perentie uses, but normally the solenoid is a three wire, one circuit pulls it open and then the other circuit holds it open.
    Regards
    Daz


  5. #5
    Join Date
    Jan 2016
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    81
    Quote Originally Posted by Phil B View Post
    Also check and clean the screen on the inlet to the injector pump
    The filter I think you are talking about is on the lift pump and that was renewed during lift pump overhaul .The main fuel filter has been changed . As to an air leak in the supply line you would think that the hand priming pump would take more than 3 pumps to go hard if that was the case .I do not know off a fuel cut of solenoid on the Perentie , if there is one where is it and what controls it ??. Thanks for the input.

  6. #6
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    Starting woes

    Quote Originally Posted by thomson View Post
    The filter I think you are talking about is on the lift pump and that was renewed during lift pump overhaul .The main fuel filter has been changed . As to an air leak in the supply line you would think that the hand priming pump would take more than 3 pumps to go hard if that was the case .I do not know off a fuel cut of solenoid on the Perentie , if there is one where is it and what controls it ??. Thanks for the input.
    The 4BD1 does not have a fuel cut off solenoid. It has a mechanical stop lever on the side of the IP which is operated by an EDIC motor on the bulkhead via a cable.
    Have you checked the sedementer just in front of the drivers side rear wheel inside the cill attached to the chassis? It is a likely spot for an air leak.
    Phil B

    Custodian of:
    1974 S3 swb wagon (sold)
    1978 S3 swb canvas
    48 749 '88 4x4 Perentie
    1985 County with 4BD1T

  7. #7
    Join Date
    Jan 2016
    Location
    Lane Cove
    Posts
    81
    Quote Originally Posted by Phil B View Post
    The 4BD1 does not have a fuel cut off solenoid. It has a mechanical stop lever on the side of the IP which is operated by an EDIC motor on the bulkhead via a cable.
    Have you checked the sedementer just in front of the drivers side rear wheel inside the cill attached to the chassis? It is a likely spot for an air leak.
    I have checked it ,but did not renew the O rings , I will replace them and check all the clamps again

  8. #8
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    Jan 2016
    Location
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    81
    Well it turned out I was the problem . When refitting the lift pump I reversed the inlet and the return line , I am surprised that once it had started it ran fine , reversed the fuel lines and it start first rotate .

  9. #9
    Join Date
    Jan 2014
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    Quote Originally Posted by Phil B View Post
    The 4BD1 does not have a fuel cut off solenoid. It has a mechanical stop lever on the side of the IP which is operated by an EDIC motor on the bulkhead via a cable.
    Have you checked the sedementer just in front of the drivers side rear wheel inside the cill attached to the chassis? It is a likely spot for an air leak.
    I stand corrected, I gave up calling it a EDIC motor as every time I went to the local generator parts place and said EDIC motor, they looked at me blankly, if I said fuel shutoff solenoid, I was given the correct part.

    The same Isuzu engine with either a edic motor or solenoid is/was used on many different brands of generators.
    Regards
    Daz


  10. #10
    Join Date
    Sep 2014
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    Kununurra
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    42
    Quote Originally Posted by DazzaTD5 View Post
    I stand corrected, I gave up calling it a EDIC motor as every time I went to the local generator parts place and said EDIC motor, they looked at me blankly, if I said fuel shutoff solenoid, I was given the correct part.

    The same Isuzu engine with either a edic motor or solenoid is/was used on many different brands of generators.
    Hi Dazza, when you got the new edic motor did it come with the vinyl bag or do you know where i could get the vinyl bag as mine is missing and with the approaching wet season i would like to get it covered to protect it a bit

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