Author Topic: 1986 ramcharger vacume leak ?  (Read 211 times)

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Offline Hart1561

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1986 ramcharger vacume leak ?
« on: May 22, 2020, 08:55:37 pm »
Have an 86 ramcharger that suddenly has what sounds like a huge vacuum leak, but upon checking all hoses, all is good ! Vehicle runs rough now, and sounds like a huge vacume leak. Any ideas ?

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    Offline modelcitizen

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    Re: 1986 ramcharger vacume leak ?
    « Reply #1 on: May 22, 2020, 10:07:28 pm »
    Brake booster? Pinch hose going to booster,noise stop? Brake pedal hard?

    Offline Hart1561

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    Re: 1986 ramcharger vacume leak ?
    « Reply #2 on: May 23, 2020, 08:49:15 am »
     Tried that, no difference. 

    Offline modelcitizen

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    Re: 1986 ramcharger vacume leak ?
    « Reply #3 on: May 23, 2020, 10:27:15 am »
    Only other large hose on truck would be pcv hose,look that over carefully. Reminds me of something like this that had me chasing my tail....many years ago an elderly friends AMC Pacer carb was flooding. I took carb off and to work to rebuild it. Next day after work i reinstalled it but couldn't get it to idle. During the overnight hours a squrrrel [email protected]" hole in bottom of pcv hose. Everything looked normal from top of engine. Replaced hose,all good.

    Offline modelcitizen

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    Re: 1986 ramcharger vacume leak ?
    « Reply #4 on: May 23, 2020, 10:27:55 am »
    Carb loose possibly?

    Offline DODGEBOYS

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    Re: 1986 ramcharger vacume leak ?
    « Reply #5 on: May 24, 2020, 10:34:24 am »
    your best friend with a vacuum leak is a can of Carb spray , with it running selectively spray - intake to head gaskets - Carb gasket and other places for leaks , the idle will change when you hit the right one
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