I have 3/8 asco valves when my car is slammed and I go to air it up my exhaust valve spits out a quick shot of air is this normal ........do this valves need a little back pressure to seal ....this only happens when the car is completely slammed and I go to raise it ..the exhaust spits a shot of air for just a second.....any advice from the air gurus is appreciated :D
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