Air bags deflate when key turned off

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Darren12
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Joined: Sun Dec 13, 2020 4:09 pm

Air bags deflate when key turned off

Post by Darren12 »

Good evening everyone I have a 86 Scania K112 and when you turn the key off the airbags deflate. Could anyone please give me a possible cause and possibly some advice on how to fix the issue.
Thanks Darren
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boronia
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Joined: Sat Mar 06, 2004 6:18 am
Favourite Vehicle: Ahrens Fox; GMC PD4107
Location: Sydney NSW

Re: Air bags deflate when key turned off

Post by boronia »

How quickly do they deflate? Do they all go down or only the front?
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Darren12
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Joined: Sun Dec 13, 2020 4:09 pm

Re: Air bags deflate when key turned off

Post by Darren12 »

They all go down, at a reasonable pace.
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boronia
Posts: 21585
Joined: Sat Mar 06, 2004 6:18 am
Favourite Vehicle: Ahrens Fox; GMC PD4107
Location: Sydney NSW

Re: Air bags deflate when key turned off

Post by boronia »

Seems like a leak in the supply lines to the airbags; possibly there is a non-return valve which is faulty.
Preserving fire service history
@ The Museum of Fire.
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