Defender PUMA Anti-Stall Feature in LOW-RANGE - Issues when 4WDriving

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Originally Posted by Tote

I read somewhere when I got my Puma that the increase in revs is a largely physiological thing and the extra couple of hundred RPM is a very small increase in speed when the reduction ratio in low 1st or 2nd is considered. Armed with this knowledge I trained myself to not be concerned with the rev increase.

Regards,
Tote

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I concur.

I have had no issues with it, even in extreme downhill descents.
Its more of a benefit than a hinderance.

Takes it to about 900 revs on mine. Never found it a problem.

Welcome back Mick.......

Regards,
Tote

I have found a couple of times when crawling in low range and the engine starts to labour a bit on the anti-stall, I had the tendency to touch the throttle a tiny bit which would result in a stall; just enough throttle to switch off the anti-stall but not enough to power through the situation. If it's hanging on by the anti-stall and you want a little more power, it can require a bit more right foot than you think. The anti-stall definitely works in all gears but obviously is not magic and will not provide enough torque where too high a gear is selected.

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Originally Posted by POD

I have found a couple of times when crawling in low range and the engine starts to labour a bit on the anti-stall, I had the tendency to touch the throttle a tiny bit which would result in a stall; just enough throttle to switch off the anti-stall but not enough to power through the situation. If it's hanging on by the anti-stall and you want a little more power, it can require a bit more right foot than you think. The anti-stall definitely works in all gears but obviously is not magic and will not provide enough torque where too high a gear is selected.

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Going forward is not the issue that worries me, its when u are attempting to get up a steep rocky incline offroad and u don't make it and u have to reverse back down as slowly as u can. This is when I reckon the LR issue I mentioned is a safety concern. In Low Range & reversing back down hill and trying to go as slow as possible but then the anti-stall fights against u, thus increasing the revs and speed - The only way to combat this is by using the clutch more than u really should when reversing back down the steep rocky hill. Not good IMHO...

I've reversed down many steep hills before in other 4wd's without any issues but these 4wd's also never had anti-stall either. I just found this anti-stall feature to be more of a hinderance when reversing, not a problem when going forward...