Something wrong with my drivetrain 3.0R spec B

Posts specific to the 3.0 litre NA H6 engine

Something wrong with my drivetrain 3.0R spec B

Postby Libradtee » Wed Oct 07, 2020 3:49 pm

Yesterday the lib started making this screeching noise, and then it experienced a lot of power loss. It's also using insane amounts of fuel - 50L/100km out of no where. At first I thought maybe it was the brakes but I think it might be drive train because it's always screeching. Any ideas?
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Re: Something wrong with my drivetrain 3.0R spec B

Postby bigBADbenny » Fri Oct 09, 2020 6:19 am

I’d say you need to check your accessory belts asap.
Alternator belt might be slipping.
A snapped accessory belt can lunch your engine.

Info here and in your FSM.

As for excessive fuel use:

Avcs/alvs issues should also be ruled out as a contributing factor, either a failing ovc or oil pressure switch:

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Re: Something wrong with my drivetrain 3.0R spec B

Postby BillyCorgi » Fri Oct 09, 2020 7:46 am

Libradtee wrote:Yesterday the lib started making this screeching noise

From where does said screechine noice eminate?
Is it all the time like when stationary or does it start only when moving?
Is it related to vehicle speed?

Please do tell us?????

As you are mentioning "Brakes" then maybe it is only when moving and related to road speed?

The brake pads have a wear limit stylus that with contact the dics and squeal when the barke pad thickness limit is reached.
This will make an umpleasant sound but should not effect fuel ecomomy.

A disintegrating centre diff will catch pices of broken metal between the gearbox case and the roatating viscous ciupling and sound terrible and increase drag on teh driveline.

But, no diagnosis can be performed over the intereweb.
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Re: Something wrong with my drivetrain 3.0R spec B

Postby Stifull » Fri Oct 09, 2020 11:04 am

If the brakes were binding badly enough to causing loss of power and using " 50L per 100klm " I would suspect there would be a terrible smell and smoke coming from a wheel !!!
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Re: Something wrong with my drivetrain 3.0R spec B

Postby montyLalor » Sun Nov 15, 2020 11:43 pm

Please send us an update!
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