3.7 CAI Whistle Noise....
#1
3.7 CAI Whistle Noise....
For those of you out their with the 3.7 and have installed a cold air intake, have any of you came across your intake making a pretty loud whistling noise at certain rpms when cruising? I've heard that it could be the butterfly valve, then why does it only whistle in lower liter engines and or V6's and lower? I know 2 people who have an intake on there 4.7 and another on there 5.7 but they both sound good! lolanyone else with information about it would help too....thanks!
Last edited by 08XDakota; 04-21-2011 at 11:39 PM.
#2
My intake (4.7l) whistles at some cruising speeds and when cold. Its not unusual for them to do it. My whistle actually comes from the throttle body, and it went away when I put my fastman on. If the whistle is coming from the intake, you're fine; if the whistle is coming from a vacuum leak, then you have an issue.
#3
My intake (4.7l) whistles at some cruising speeds and when cold. Its not unusual for them to do it. My whistle actually comes from the throttle body, and it went away when I put my fastman on. If the whistle is coming from the intake, you're fine; if the whistle is coming from a vacuum leak, then you have an issue.
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Mine whistles. This is completely normal. The only reason you don't hear it with a factory intake pipe is because of the sound baffles and tubing. This muffles the whistle so that you can't hear it. I wasn't really used to having a whistle, you can't even hear it on the race car, which used to be my DD. See? N/A stuff can be fun, folks.