still no boost...
06-26-2017, 07:42 PM
Join Date: Dec 2006
Location: NJ
Posts: 747
still no boost...
Over the weekend I replaced my shut off valve. After the replacement, and making sure all the tubes are on tight. I took it out for a spin, and I'm still not seeing any boost on my gauge. At this point I'm at a lost, and no idea what could be causing this. Can anyone out there help me?
06-27-2017, 04:37 AM
Join Date: Mar 2013
Location: Fuquay Varina, NC
Posts: 5,490
Assume you mean by-pass valve. Did you zip tie the valve to test that it was working correctly? If the water pump is spinning then you should have boost. There is a recent thread here where they found that the factory pulley had come loose and was free wheeling on the shaft.
06-27-2017, 06:02 AM
Join Date: Dec 2006
Location: NJ
Posts: 747
I never did the zip tie test before changing it out. I swapped in the DT bpv, so it should be working. I can feel the supercharger kicking in, so I don't think its a loose pulley. Are there any other factors I'm missing? Could my boost gauge be broken? All it reads is vacuum and maybe 1 to 2 lbs of boost.
06-27-2017, 06:16 AM
Join Date: Mar 2013
Location: Fuquay Varina, NC
Posts: 5,490
Just because the part comes out of the box does not mean the thing works. I have learned over the years to always double check the easiest issue.
Why did you think the BPV was bad, the gauge?
06-27-2017, 10:23 AM
Join Date: Dec 2006
Location: NJ
Posts: 747
Yea pretty much. Is it possible the gauge could be broken?
06-27-2017, 11:11 AM
Join Date: Jun 2015
Posts: 854
If it is as you stated, "I can feel the supercharger kicking in," and you're NOT observing a noticable decrease in performance, then I'd guess yes, the gauge might be faulty, or disconnected at some point along the line...
06-27-2017, 12:42 PM
Join Date: Dec 2006
Location: NJ
Posts: 747
Well when I say I feel the supercharger kicking in, I mean it doesn't feel like just a 4 cylinder car.
06-28-2017, 12:10 PM
Join Date: Nov 2004
Location: Arnold, MO.
Posts: 2,544
Trust me, the difference isn't slight if that's all the boost you were actually getting.