VAC guage hookup
VAC guage hookup I'm trying to hook up a manual vac guage in my car and i want to tap into the line that runs from the brake booster to the back of the intake. what size hose is that? i want to make sure i get the right sized T-connector. any insight would be greatly appreciated.
thanks,
jeremy
thanks,
jeremy
TECH Fanatic
Joined: Oct 2003
Posts: 1,514
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From: Long Island, NY
It's amazing how often this question comes up...you'd think a motor that looks like the LS1 (with it's seemingly infinite wires and lines) would have some type of readily available vacuum source in plain sight.....but it doesnt...
i don't suggest going with your original plan only because the brake booster line is one place you DON'T want to initiate a vacuum leak. a lot of people do source things off here but there are better options. also, it's gonna be tough to get the tiny little nylon vacuum tubing to T into the relatively huge booster line. I went through this same problem fumbling through boxes of fittings when trying to hook mine up.
Grab a flashlight and have a look under the cowl in the area of the back of the intake. there are a couple small vacuum lines back there as well as a nipple on the intake that can be broken off and used as a source.
I'm afraid i can't be more specific because after 2 days of looking for a good source, i gave up and took my car over to a friend's shop who promptly stuck a set of cutters under the cowl, cut some small vacuum hose, connected the t-fitting and was finished in 5 minutes. It's very tough to see but I'm telling you the line is back there.
if anyone knows more about the particular line im talking about, please chime in and help this guy out.
Z2L8ter- stick with it, there IS a good source that you can use a nice small t-fitting on way in the back there.
i don't suggest going with your original plan only because the brake booster line is one place you DON'T want to initiate a vacuum leak. a lot of people do source things off here but there are better options. also, it's gonna be tough to get the tiny little nylon vacuum tubing to T into the relatively huge booster line. I went through this same problem fumbling through boxes of fittings when trying to hook mine up.
Grab a flashlight and have a look under the cowl in the area of the back of the intake. there are a couple small vacuum lines back there as well as a nipple on the intake that can be broken off and used as a source.
I'm afraid i can't be more specific because after 2 days of looking for a good source, i gave up and took my car over to a friend's shop who promptly stuck a set of cutters under the cowl, cut some small vacuum hose, connected the t-fitting and was finished in 5 minutes. It's very tough to see but I'm telling you the line is back there.
if anyone knows more about the particular line im talking about, please chime in and help this guy out.
Z2L8ter- stick with it, there IS a good source that you can use a nice small t-fitting on way in the back there.
Thanks DeepBlueZ, I'll have to look and see if i can find any more options. Thanks for the insight i really appreciate it. Anyone else know about connecting a small t on one of the small lines behind the intake?
