I need some good advice about faulty driveline - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 08-07-2001, 06:09 AM
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I need some good advice about faulty driveline

Hey,

I have a 1989 Samurai for 5 years and it has always driven very good, untill now:
*I hear sometimes (mostly when the weather=hot) a whining/screaming noise when a de-accelerate (braking on the engine)
*Also I can feel vibration at low speed, when I'm driving at 20mph or more, the vibration goes away.

I did some test:
* the joints of the 3 axes seems to be OK, there is no great backlash(play,margin,clearance)
* engine and drivetrain-components seems to be solid fixed so the rubbers,... are still good
* There is more play in the front drive shaft, than the one to the back. I checked this when the vehicule was parked and i rotated the drive shafts back and for so this give me an idea about the backlash in the axle reduction by the differential
* When I put the lever of the transfer case in 'N'eutral, and set the lever of the transmission in '4' or '5'(overdrive), then you can here a lot of noise and feel a little vibration, it seems to be coming out of the transfer case or the axle from the transmission to the T-case >> is this indicating there is a ball bearing defect in the T-case, or is there an unbalance in the drive shafts, ..???

So,
Where is my problem (Transmission, T-case or driveshaft or?)
And can I repare the problem (in T-case,transmission or ?)

Can please someone help my, by giving my some advice,
I want to repare my Sam because it has never failed my on the 50.000 miles I have driven in the past 5 years

Thanks for reading,
Danny


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post #2 of (permalink) Old 08-07-2001, 07:35 AM
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Re: I need some good advice about faulty driveline

have you checked the juice level in the tranny n t/c? i rekon i would start there to diagnose it. could just be low..
BiLLy bOb


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post #3 of (permalink) Old 08-07-2001, 07:37 AM
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Re: I need some good advice about faulty driveline

thats where i would start too.

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post #4 of (permalink) Old 08-07-2001, 10:36 AM
 
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Use the Force

You need to pinpoint your whining/screaming noise a little better. Try holding tight to the transmission shifter when it is making the noise - feel for the noise. If the tranny is making it, there is a good chance you can detect it through the shifter. Try the same thing with the transfer case shifter.

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