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Thread: Hesitation hard to start

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    Hesitation hard to start

    Hi
    Noticed about a week ago that my 3l crd was loosing power/ hesitating going up hill an now it is very hard to start and when it does finally go it hesitates on flat ground between 2200 and 2500.

    Have changed fuel lines and clamps to make sure there are no leaks new filter and swapped boost sensor mad and accelerator pedal but haven't found any success. Am going to get new fuel pressure sensor and relief valve.

    Had anyone else had a similar problem. Has been throwing a p0089 code when it hesitates. Has also been throwing a boost sensor circuit low but hasn't come back yet as it won't start

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    G'day mate. Have you tried testing the pressure relief valve ? Your problem has the symptoms of this valve failing.



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    Patrol God threedogs's Avatar
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    When was the last time you cleaned the Maf sensor also disconnect the battery for 1/2 an hr while you do it.
    Also is your intercooler oily???
    What year CRD do you have???
    Last edited by threedogs; 31st October 2015 at 04:45 PM.
    04 ST 3lt auto, not enough Mods to keep me happy, but getting there

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    Advanced peterbr1's Avatar
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    Have you tried changing the fuel filter? OOps sorry just saw the filter bit

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    I've cleaned the maf but didn't help swapped with another one still nothing the intercooler does have oil in it but will be installing a catch can to try and help that. Just changed the filter but nothing really happened. Gunna try a new relief valve and a new pressure switch cause I'm pretty annoyed with it. Thanks heaps for the advice I'll reply again once I've tried it

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    Patrol God threedogs's Avatar
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    If the intercooler is oily its leaking, TBH I think they leak from new.lol
    You can check with some tape, rags and a large bucket of water, remember to dry it
    with a hair dryer before re-fitting it, this will be your boosting issues.
    Pressurize with a bike pump or short squirts with a compressor
    Also when you clean the MAF did you disconnect the battery to re-set the ICU
    What area are you in???
    Last edited by threedogs; 2nd November 2015 at 08:03 AM.
    04 ST 3lt auto, not enough Mods to keep me happy, but getting there

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    Try cleaning the injectors, I used that Nulon injector cleaner where you remove the fuel line and return line at the filter put both hoses in the cleaner and run the engine till it runs out, don't know if its a type of placebo effect but I swear my motor ran smoother (just a thought)

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    Quote Originally Posted by taobrien View Post
    I've cleaned the maf but didn't help swapped with another one still nothing the intercooler does have oil in it but will be installing a catch can to try and help that. Just changed the filter but nothing really happened. Gunna try a new relief valve and a new pressure switch cause I'm pretty annoyed with it. Thanks heaps for the advice I'll reply again once I've tried it
    Can I ask what you ended up doing to fix this?
    2007 GU CRD Auto Silver

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