PDA

View Full Version : GT vacuum


CSX153
04-25-2010, 07:36 PM
what should the vac be on a GT, auto. because my moms is around 10, that seems pretty low.
shadow88
04-25-2010, 08:18 PM
On a gague? 10Hg?
GLHNSLHT2
04-25-2010, 08:49 PM
good autometer boost gauge? In park or neutral I would think easy over 15 and at 15 in gear. 10 does seem pretty low. I'll fwd the link to my buddy with a GT that has a SRT4 boost gauge on it and 23k miles to see if he'll reply to what he gets.
The Pope
04-25-2010, 09:16 PM
good autometer boost gauge? In park or neutral I would think easy over 15 and at 15 in gear. 10 does seem pretty low. I'll fwd the link to my buddy with a GT that has a SRT4 boost gauge on it and 23k miles to see if he'll reply to what he gets.

15 on vac but my gauge is on 2 PSI with the engine off lol. 10 is way too low though:confused2:
jl93sundance
04-25-2010, 10:08 PM
In park at idle it should be between 15-20in/hg
BLUEBALL
04-26-2010, 12:40 AM
Try a known gauge if you can. Stockers tend to lie sometimes
GLHNSLHT2
04-26-2010, 12:53 AM
PT GT's don't have a stock gauge, and the SRT4 gauge is from Autometer.
BLUEBALL
04-26-2010, 01:07 AM
Hmm intwisting. Thought they did(yes I assumed since he was reading one,lol). The SRTs commonly have innaccurate gauges though:nod:.
CSX153
04-26-2010, 01:09 AM
its an autometer
shadow88
04-27-2010, 08:35 PM
If it's a known good gague, I'd think something was wrong. If the engine light is off, it could be the exhaust cam out a tooth. Then again, it could be lots of things.
turbovanmanČ
04-27-2010, 08:45 PM
Make sure you have the gauge feed to actual manifold vacuum.

If it was at truly 10", it would run and idle like crap.
DC Turismo
04-29-2010, 12:41 AM
My vac. at idle sits at 20, just FYI.