# noise coming from boost gauge... **URL:** \ **Category:** SON240sx Automotive\ **Created:** [October 3, 2005, 11:06am UTC](https://forums.speedlife.net/t/noise-coming-from-boost-gauge/89142 "2005-10-03T11:06:51Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![koz](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/koz/32/5478_2.png) [@koz](https://forums.speedlife.net/u/koz)\ **Post date:** [October 3, 2005, 11:06am UTC](https://forums.speedlife.net/t/noise-coming-from-boost-gauge/89142/1 "2005-10-03T11:06:51Z")
so i installed my Megan boost gauge, took the car for a rip and noticed a noise coming directly from the gauge. it sounds like air. i’m thinking because i didn’t use the compression sleeve on the gauge side of the hose (i dropped it and lost it) maybe i have a leak. so now i’m questioning the accuracy of my gauge. i have an HKS wastegate actuator installed, but don’t want to adjust it until i know for sure my gauge is giving me proper readings. when i start the car, the gauge reads ~ -16 (vacuum pressure)… so far with a couple of second gear pulls i’ve managed to get the needle only to about 2-3 psi, but under normal acceleration it hits around the zero mark. assuming the HKS actuator is set at a low boost level (the length of the rod measures ~ 140mm) does this sound right? i think i’ll tape up the connection behind the gauge to try to eliminate any noise/leak, and see if my boost readings change. any thoughts? ---
**Author:** ![Happy240sx](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/happy240sx/32/5515_2.png) [@Happy240sx](https://forums.speedlife.net/u/Happy240sx)\ **Post date:** [October 3, 2005, 11:28am UTC](https://forums.speedlife.net/t/noise-coming-from-boost-gauge/89142/2 "2005-10-03T11:28:46Z")
You are leaking… ---
**Author:** ![s14\_2Nv](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/s14_2nv/32/5476_2.png) [@s14\_2Nv](https://forums.speedlife.net/u/s14_2Nv)\ **Post date:** [October 3, 2005, 12:40pm UTC](https://forums.speedlife.net/t/noise-coming-from-boost-gauge/89142/3 "2005-10-03T12:40:59Z")
Yep, you are leaking. Your vacuum at idle should be around -20, and at boost you should be seeing +7 on stock SR boost. ---
**Author:** ![GT1](https://avatars.discourse-cdn.com/v4/letter/g/b5e925/32.png) [@GT1](https://forums.speedlife.net/u/GT1)\ **Post date:** [October 3, 2005, 12:48pm UTC](https://forums.speedlife.net/t/noise-coming-from-boost-gauge/89142/4 "2005-10-03T12:48:39Z")
yea thats certainly not going to seal properly… GT ---
**Author:** ![koz](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/koz/32/5478_2.png) [@koz](https://forums.speedlife.net/u/koz)\ **Post date:** [October 3, 2005, 12:56pm UTC](https://forums.speedlife.net/t/noise-coming-from-boost-gauge/89142/5 "2005-10-03T12:56:22Z")
ok, i wrapped a little electrical tape around the hose between the gauge and the nut… no more noise, -20 psi at idle. :thumleft: now just need to adjust the wastegate actuator. ---
**Author:** ![Sasha\_SG](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/sasha_sg/32/5477_2.png) [@Sasha\_SG](https://forums.speedlife.net/u/Sasha_SG)\ **Post date:** [October 3, 2005, 1:39pm UTC](https://forums.speedlife.net/t/noise-coming-from-boost-gauge/89142/6 "2005-10-03T13:39:16Z")
lol it’ll leak in boost man fix it properly ---
**Author:** ![Gonad](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/gonad/32/5481_2.png) [@Gonad](https://forums.speedlife.net/u/Gonad)\ **Post date:** [October 3, 2005, 2:02pm UTC](https://forums.speedlife.net/t/noise-coming-from-boost-gauge/89142/7 "2005-10-03T14:02:01Z")
Loctite/teflon tape ftw And maybe silicon sealent if you want to seal off some air.