09f150guy

Working on getting my boost gauge installed, tapped into the vacuum line close to the ball up the upper passenger side. When i start the truck, goes to about 20 vac, but doesn't move from there. When I hit the gas and let the boost build up, the needle flickers a bit but never actually shows I'm making boost. Is there a different vacuum line I should be tapping into?

Thanks!

hellzno

im pretty sure you will not see boost pressure unless you drive and put load on engine. at a stop sitting still you will not see boost. Did you drive your truck yet?

09f150guy

Yes drive for about 20 mins, two different times. Drove it hard as well trying to get it to build up

Kenneth Forbus

Easy fix. You put the split on the wrong side of the check valve. See picture for correct placement of t connector. You'll get vacuum and boost at this spot. Once in there the boost gauge will move alot while driving going up to about 15 lbs and maybe only 1 pound parked revving it.

09f150guy

Makes sense, I'll change it tomorrow and see if that fixes it. Nice gauge btw

Kenneth Forbus

Thanks. If you have any more questions let me know.

sluggo1

I have a question. Where did you get that gauge? Price? Part number? Thanks. Looks sweet

11BLKFX4EB

I think Roush sells it on their site for $85....too lazy to check it right now. Ive been thinking about gettng one as well

sluggo1

I searched "boost gauge" on eBay and holy crap there are thousands to choose from. Digital, colored, different psi levels. Not sure what brands are good and what to stay away from.

jcain

buy a scan gauge and be done