ISUZU D-Teq 300KB - Possible drivetrain / clutch issues





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  1. #1
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    Default ISUZU D-Teq 300KB - Possible drivetrain / clutch issues

    Hi guys,

    I have recently started picking up a issue and the bakkie is just not feeling the way it used to.

    I think I might be developing a clutch problem. When pulling away, I sometimes get a slight shudder. It does not happen all the time, but it does seem to occur more when pulling away of an incline. Any advise on what to check to try and confirm if it is clutch related?

    My next problem is the bakkie has started to have a very small high frequency vibration from about 70 km/h all the way through to 120 km/h. It is small (Swambo says its in my mind!), but I can feel it in the steering wheel and through accelerator peddle. The vibration doesn't go away when I put my on the clutch or take my foot off the accelerator. There seems to be no vibration when idle and revving the engine. So therefore I don't think it is engine related. Can this issue be linked the clutch starting to go bad? Or maybe like a flywheel that is out of balance?

    I haven't taken it to the dealers yet. Would like to eliminate a couple of "possibles" first.

    Advise, as always, is appreciated. Thanks

  2. #2
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    Default Re: ISUZU D-Teq 300KB - Possible drivetrain / clutch issues

    Prop shaft out of balance or universal joints / joint beginning to go?

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  4. #3
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    Default Re: ISUZU D-Teq 300KB - Possible drivetrain / clutch issues

    Thanks Ingetrap,

    Do you think a worn propshaft UV joint could cause the clutch to feel like it is grabbing / shudder?

  5. #4
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    Default Re: ISUZU D-Teq 300KB - Possible drivetrain / clutch issues

    Did you perhaps did a suspension lift?

    My KB300 is lifted 60mm and a slight shudder is evident on pullaway. After 160k km it is still the same, even after a clutch overhaul at 165k km.

    That vibration sounds like the propshaft.
    - Any feel under the seat? then the centerbearing
    - Out of balance after an offroad event? Maybe a rock dented or touched a balance weight
    Isuzu 300 d-tec
    MB Gwagen G350 Bluetec
    Nissan NP300 2.4 4x4
    BMW R1200GS & GSA

  6. #5
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    Default Re: ISUZU D-Teq 300KB - Possible drivetrain / clutch issues

    My KB300 clutch also shudders and would need to be replaced at some stage. Its just in 1st gear on pull away. Its my understanding that it will only get worse with time, but should not leave you stranded. So you have some time.

    If it was my bakkie I would have the tires balanced on a road force machine and then start looking else where if the problem persists.

  7. #6
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    Default Re: ISUZU D-Teq 300KB - Possible drivetrain / clutch issues

    Maybe the engine or gearbox mounts are worn out?

  8. #7
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    Default Re: ISUZU D-Teq 300KB - Possible drivetrain / clutch issues

    Thanks for the advise.

    I stopped in at my Isuzu dealer on the why home yesterday. They weren't much help as the soonest they could have a look at the bakkie is on the 9 November, as they are fully booked till then. I will have to look elsewhere. Any recommendations for a good mechanic in the Somerset West/ Strand / Cape Town Area?

    My fears is that it is that the small vibration is getting worse. This vibration has now become an audible hum.
    I will check out the gearbox & engine mounts just to be sure.

    To answer some of the questions:
    - Tires have been recently balanced, so i would like to rule that out
    - Suspension is stock
    - With recent off-roading I don't recall anything that could have touched the propshaft..... but possible I guess

  9. #8
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    Default Re: ISUZU D-Teq 300KB - Possible drivetrain / clutch issues

    Brandan, the symptoms you describe sounds like the centre bearing on your propshaft.

    Contact Mario on 082 928 3210.
    He is in Edgemead. He works from home and is an Isuzu fundi. He will sort you out.
    Jaco

    Isuzu KB300 DMax D/C 4x4 3" Homemade lift, Bosvark LFR Radio and free-wheel hubs.

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