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Air activation system

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07 Jul 2026 21:18 #264881 by Peter.parfett@sky.com
My son has just bought a 2008 Jimmy its been convervted to off road .we have noticed a small compresor behind the drivers seat which says Air activation system,can anybody tell me ehat this does plede ?

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08 Jul 2026 00:29 #264883 by fordem
Replied by fordem on topic Air activation system
It's not a standard fitting, you'll need to follow the lines to see where they go, if they go anywhere at all, it could be just there for tyre inflation purposes.

Other possibilities would be air suspension, which I think is unlikely or an "air locker" which would be an air activated differential locker (traction aid).

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08 Jul 2026 08:40 #264891 by facade
Replied by facade on topic Air activation system
As Fordem suggests, and since it is "off road converted" it is most likely for an air activated differential lock on the rear axle.
Have a look for air pipes going into the front of the rear differential.
There could be a front one too, but most people get by with just the rear and some semblance if steering at the front.

If it suddenly breaks, go back to the last thing that you did before it broke and start looking there :)

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09 Jul 2026 19:35 #264906 by Peter.parfett@sky.com
Hi mate many thanks,i followed the pipes they leed both diffs. So its air activated diffs.

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10 Jul 2026 12:23 #264909 by Roger Fairclough
Normally the seller would emphasise all of the accessories that have been added to a motor to justify the asking price and as a compressor and 2 locking diffs. could easily top a grand plus fitting, I am surprised that the new owner was not made aware of the value of the pump and diffs!

Roger

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11 Jul 2026 10:13 #264911 by Gadget
Replied by Gadget on topic Air activation system
If the lockers and compressor work, then that's a real result, as they're not cheap!

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