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Thread: TD42t loosing power

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    TD42t loosing power

    Hey guys, I recently purchased an 02 GU with a TD42T and have only put around 4,000km on it, and one trip on the sand dunes where it got a bit hot. Since then it's been loosing power and flat spots at random RPM usually between 1.8k 2.4k, feels like it's starving for fuel. Any suggestions would be appreciated, thanks in advance.

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    dpetersen (12th January 2019)

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    I’d get your injectors/injector pump checked out mate.
    What rpm does it sit at when idling?


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    G'day mate. It would help if you did an intro in the introductions and told us a bit more about yourself and the vehicle. Not sure what you were doing in the sand hill trip, but you may have blocked air filters, part blocked fuel filters or a loose connection in the fuel system letting air in now and again. from the little information you have given here it could be lots of things some minor some major. Also how hot and for how long?
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    For memory around 600-650rpm, and yeah that's what I was planning to do this arvo, just need the pump timing and pressure but I don't have access to the FSM on here yet.

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    Cheers 4bye4,
    Going off the factory water temp gauge it was about 3/4 for about 2-3 minutes, so I let it cool down at idle and I spent the rest of the day on the sand without seeing it rise again.

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    Quote Originally Posted by 02_GU_TD42 View Post
    Cheers 4bye4,
    Going off the factory water temp gauge it was about 3/4 for about 2-3 minutes, so I let it cool down at idle and I spent the rest of the day on the sand without seeing it rise again.
    Check the little gauze filter on the inlet fuel line into the injector pump. Check all you hoses and clamps too for cracks and lose clamps. Change the fuel filter as already mentioned. 3/4 on your factory gauge is around 110c, so it’s hot but for only a few minutes would be nothing to worry about, last summer mine ran 110c for a good 5 hours towing a camper through the Snowy Mountains in 42c heat. So a few minutes is nothing.


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    strewth can they handle that sort of temp over prolonged periods? I was towing my tinny up a range during the last heatwave and it got to 100c so I pulled over until it dropped into the 90's

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    Quote Originally Posted by cairns gu View Post
    strewth can they handle that sort of temp over prolonged periods? I was towing my tinny up a range during the last heatwave and it got to 100c so I pulled over until it dropped into the 90's
    Yeah mate it’s fine. I will admit those temps I was running and for that period had me a little concerned at the time but it got me through.
    If you see those temps, but you know on the other side of the hill you’ll get relief, just take it easy and don’t push it too hard.


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