Transmission Shuddering?

CraigM. · Apr 21, 2017

Help please, guys. My son has got a 91 LR 3.9v8 auto which has developed a bad shudder. It only happens on take-off. Feels like a clutch slipping. If I pull away really gently, it doesn't do it, but if I pull off normally it shudders like hell.

I'm afraid I'm a bit lost. Anyone got any ideas?

ovalandrover · Apr 21, 2017

is it automatic or manual? sorry i see its auto now

Disco1BFG · Apr 21, 2017

we'd need to know quite a lot more about the vehicle really - like what it is....

91 LR doesn't really tie it down

.... I'm guessing RRC ??

What have you checked - auto gearbox oil level could be the cause - rubber coupling on rear prop ( IF it has one ) - or CV joints in front swivels..... or suspension bushes.... or many other things.

Tell us more about the vehicle, the mileage, service history ( if any - DIY is fine, and often better

), post a piccie or two.... and let's see where we end up

CraigM. · Apr 21, 2017

Sorry! How stupid of me. Yes, it's a RRC 3.9efi auto. I drove it home from work tonight carefully and it's pretty bad. Finally It lost "D" - just revved like it had slipped out of gear, but it ran in 3, 2 and 1. So definitely transmission, but not sure what...

Wazzajnr · Apr 22, 2017

Sounds like the sprag clutch might have gone.
Could be lack of fluid but normally, no drive in D but drive in selectors is sprag clutch.
I'd be visiting an auto box specialist.

Disco1BFG · Apr 22, 2017

As above, sounds very much like main sprag clutch has reversed. If so, then it'll need a rebuild

.

Transmission Shuddering?

CraigM.

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ovalandrover

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Disco1BFG

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CraigM.

New Member

Wazzajnr

Well-Known Member

Disco1BFG

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