Hey guys I’m having a weird air leak on the exhaust side of the engine bay only when I turn the key on and it stops once it reaches 80 psi or if I turn the key off? Any clue what this is because I can’t find where the leak is coming from
2012 international prostar maxxforce 13 air leak
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Cmays0909, Jul 20, 2018.
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soap ans water ando check for bubbles
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It is normal to have some air leaking, as there is an air pressure regulator in the air control valve near the turbos. The wastegate and exhaust back pressure valve are air pressure controlled by this valve. If the leak goes away with the key off, it is probably just air out the regulator you are hearing.
hduane Thanks this. -
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Ok, no, that is different. The amount the valve leaks is very very little and you would never be able to notice any pressure loss. I recommend someone who knows Maxxforces to have a look at this.
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Anybody ever fully resolve this issue to their satisfaction?
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If it leaks only with the key on, that is normal. What are you experiencing?
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