Vacuum Leak Behind Dash
Wow thanks for that input, I was going to start behind there anyway but that definitely helps! Im almost positive it's the hose going through the firewall, I tried pulling any slack out of it to see if I can find a hole and there is no slack what so ever and it's only a good 2 inches out from the firewall. I'm guessing the previous owner pinched the hose while installing the heater core
It's very likely a pinch could occur when reinstalling the dash. Even when taping the hoses back to their original location. I routed my hoses over the top of the air box instead of behind it when reinstalling the dash to avoid any chance of a pinch.
Here's a good look at the rear of the the air box. You can see 2 of the silver can actuators that are mounted to the right of the gas pedal.
And the right actuator(silver can) Green Hose
Last edited by beeker; Feb 11, 2017 at 01:13 PM.
Thread Starter
|
Professional
Joined: Feb 2017
Posts: 182
Likes: 0
From: Port Saint lucie
I checked the blend door actuator and it's not coming from behind there, and it's hard to tell where it's coming from because I can't visually see anything back there and it won't leak unless I'm accelerating in gear
Administrator
Joined: Apr 2010
Posts: 87,376
Likes: 4,209
From: Clayton MI
Get a nice bright flashlight. See if you can follow the lines where they go, or, move them GENTLY to someplace you CAN see them.
Might grab a friend, have THEM drive, while you go poking about too....
Might grab a friend, have THEM drive, while you go poking about too....
Thread Starter
|
Professional
Joined: Feb 2017
Posts: 182
Likes: 0
From: Port Saint lucie
I'm second guessing a vacuum leak, wouldn't it leak regardless if the truck is in gear or not? Even if I'm in gear hitting the gas it won't make a noise and I don't hear anything unless I'm actually accelerating, which the noise gets louder as the Rpms raise