Thread: Tyre pressures increased?

That's interesting, hot and humid day?? I have heard that humidity can do strange thing if it's high enough, whether that is a myth or not I can't say.

Baz.

The pressure increase is due to gasses of decomposition... - Your tyres died because of neglect and now they're slowly rotting.... Serves you right for going away and leaving your car all alone in that big empty shed !

or,

Pressure device was originally a bit off... ie, tyres were always at 2.5 bar but previously indicated 2.2 bar. Being left alone has given them time to reflect on the errors of their ways...

That's my each-way wild guesses. Pick the one that suits your mood !

Anyway, you run the risk of hurting it's feelings, seeking advice on a Land Rover forum.... would'nt be surprised if you find oil spots on the ground now....


Edit:- There's a reason they call me a 'Yarn Master' / fantasievolle Geschichten erzählen Experte

Originally Posted by superquag

The pressure increase is due to gasses of decomposition... - Your tyres died because of neglect and now they're slowly rotting.... Serves you right for going away and leaving your car all alone in that big empty shed !

or,

Pressure device was originally a bit off... ie, tyres were always at 2.5 bar but previously indicated 2.2 bar. Being left alone has given them time to reflect on the errors of their ways...

That's my each-way wild guesses. Pick the one that suits your mood !

Anyway, you run the risk of hurting it's feelings, seeking advice on a Land Rover forum.... would'nt be surprised if you find oil spots on the ground now....


Edit:- There's a reason they call me a 'Yarn Master' / fantasievolle Geschichten erzählen Experte

You do a lot of sewing??

Could it be low voltage at the computer confusing same?

Originally Posted by V8Ian

Could it be low voltage at the computer confusing same?

Exactly my first thought. What does it say after a good charge.

Originally Posted by harlie

Exactly my first thought. What does it say after a good charge.

The high pressure readings remained even after a couple of long drives (200+km) so the battery would have been well and truly back up to full charge. When we got back there was no sign it had lost much charge as cranking was fast as usual (I was expecting all kinds of electronic paraphernalia to suck the juice while we were gone). I only corrected the pressures after a couple of weeks of driving as I was waiting to see if the readings changed or the warning would go away on its own. I figured driving on slightly higher pressures wouldn't be too bad - except for my spine. The upshot is that readings at the servo confirmed the on-board sensor readings before & after I dropped the pressures. I can't be 100% sure the readings before were correct but the vehicle has been for one service last September and according to the service schedule the tyres were checked then.

Weather here in Brisbane was consistently hot & humid after we returned - the same as before we went away. It has only recently changed. I am racking my brains to try and think of some condition which may have caused this but it makes no sense.

cold be cold ambient pressure fill and then checked on a hot day,

you should see between a 4+6 psi rise while driving on highway.

if you dont somethings screwy or your pressures are wrong.

Originally Posted by Blknight.aus

cold be cold ambient pressure fill and then checked on a hot day,

you should see between a 4+6 psi rise while driving on highway.

if you dont somethings screwy or your pressures are wrong.

This is exactly why it's so confusing. The tyre monitor warning came on consistently over a two week period - hot weather, cooler weather, humid & not so humid. It did read a little higher after extended driving as you would expect. I then carefully checked the pressures at night after driving no further than the 500-odd metres to the servo (car was parked undercover all day and not driven prior to going to the servo). Cold pressures for all tyres were still 4psi or more over what they should have been.

So to recap - all pressures were checked cold using the service station gauge - which agreed with the on-board sensor readings, and all were high after previously being on spec.