Finding air leaks when you cannot hear it?

Discussion in 'Trucks [ Eighteen Wheelers ]' started by mitmaks, Aug 21, 2017.

  1. mitmaks

    mitmaks Road Train Member

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    My truck has leak somewhere. Itll build up pressure to 125psi and I'll shut it off. In the morning it will be 65-70psi.
    Any easy way I could find that leak? I dobt hear it even parked in my driveway where its real quiet.
     
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  3. me myself and I

    me myself and I Heavy Load Member

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    Spray bottle with soapy water, and start spraying
     
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  4. baha

    baha Road Train Member

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    Dont forget to ck. air spray dust off gun under drivers seat for a leak on push button?
     
  5. IluvCATS

    IluvCATS Road Train Member

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    Also Check glad hand seals.
     
  6. mitmaks

    mitmaks Road Train Member

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    I leave truck with both brakes set truck/trailer so I know its somewhere on the truck
     
  7. bavarian

    bavarian Heavy Load Member

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    Park it in a pond, watch for bubbles.
     
    Jumbo and Roberts450 Thank this.
  8. uncleal13

    uncleal13 Road Train Member

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    I have an Ultrasonic leak detector.
     
  9. Jumbo

    Jumbo Road Train Member

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    Make sure you roll the windows down in case the leak is behind the dash
     
  10. brysol01

    brysol01 Medium Load Member

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    give it a bubble bath, what ever will put the most suds on it
     
  11. AModelCat

    AModelCat Road Train Member

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    Personally I wouldn't worry about it. Its still holding air well within the limits established by the DOT.

    If it really bothers you, soapy water in a spray bottle.
     
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