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Puncture

Fab

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No idea if you have the fancy factory ones. I have cheap external ones on my Disco ; they work fine and are easily replaced.
The Grenadier , isn't the pressure monitored by comparing wheel speeds? Dunno.
Why would the wheel speed change? The circumference is not changing with pressure.
 

Tazzieman

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Why would the wheel speed change? The circumference is not changing with pressure.
We've had the fale warning with our Volvo EV. On the help forum
"Volvo uses "indirect" TPMS - where the ABS system measures the rotational speeds of each tire, thereby guessing which are "low" by comparing them to stored values (and to each other). Unfortunately for some reason - Volvo, Audi, and a couple other manufacturers have long refused to use actual "direct" air-pressure sensors on each tire (like most manufacturers do)."
Even one worn tyre (poor alignment etc) can trigger it.
 

Logsplitter

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But how do you then take the wheel off?
Chock or stand under axle but mainly using hi-lift to lift wheel out of bog to get traction aids under wheel. I would only use hi-lift to change wheel if in bog and wheel off the rim or puncture. If on hard ground would use bottle Jack.
 

DCPU

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Chock or stand under axle but mainly using hi-lift to lift wheel out of bog to get traction aids under wheel. I would only use hi-lift to change wheel if in bog and wheel off the rim or puncture. If on hard ground would use bottle Jack.
but not the Ineos one...mutter, mutter...
 

globalgregors

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But how do you then take the wheel off?
Perhaps you’re not joking. This is a recovery tool only. For wheel removal get onto flat ground and use a bottle jack, with a base plate if necessary. As noted could hoist it with the high lift onto an axle stand or a second spare wheel but the bottle jack is usually easier.
 

Roger

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Perhaps you’re not joking. This is a recovery tool only. For wheel removal get onto flat ground and use a bottle jack, with a base plate if necessary. As noted could hoist it with the high lift onto an axle stand or a second spare wheel but the bottle jack is usually easier.
Here is a good video from Robert Pepper on bottle Jacks VS Hi Lifts.
View: https://www.youtube.com/watch?v=r3_DR9F3R4U
 

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