I just installed an Edge EZ the other week and without a load the motor is a little noiseir which I can understand. Today I loaded it up with a 9.5' camper and a 2-horse angle haul trailer and in low RPM (1500-2000 RPM) when I step on the gas something sounds like an angry Banshee under my hood kind of a screaming howl like noise, it will go away once above these RPM's. I had just had my lift pump checked by the dealer and he said it was good (the results I got back was 12 PSI? thats it no WOT or idle just 12PSI?) I am afraid I am going to damage my injector pump but I'm not sure if its the pump making this noise or something else, maybe its normal once you Bomb it a little? BTW this seems to be louder the higher the gear it is in. Thanks in advance. ??? ??? ???

 

I think that normal. my truck does it. I think it is just the turbo.<br>DM01

 

It doesnt sound like the turbo whistle its a loud grinding howling kinda noise sounds rough. When I remove the EZ the noise goes away.