vacuum help

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vacuum help - 5/10/2008 3:43:38 PM    sYckmYnded Posts: 145 Joined: 5/5/2008 Status: offline anyone have a vacuum diagram? so i can get my car to stay running?? put a new intake on it and now it surges up to about 4k then drops down and dies, will not stay running, im hoping its just vacuum, any thoughts? _____________________________ 1990 Mustang LX Post #: 1

RE: vacuum help - 5/10/2008 3:50:35 PM    ALMOST STOCK Posts: 979 Joined: 5/13/2007 Status: offline Vacuum Diagrams! http://www.veryuseful.com/mustang/tech/engine/ _____________________________ (in reply to sYckmYnded) Post #: 2

RE: vacuum help - 5/10/2008 4:03:30 PM    sYckmYnded Posts: 145 Joined: 5/5/2008 Status: offline thats awsome man thanks a ton, only problem is, im TOTTALY lost, i bypassed the vac tree since all the a/c heat controls have been replaced by gauges ran the brake booster strait off the 1 of the vac lines from the upper intake then ran the pcv valve hose off another then, i have this vac line coming up off the transmission it seems so i hooked that up, what am i missing that would make it jump to 4k then drop down and die? _____________________________ 1990 Mustang LX (in reply to ALMOST STOCK) Post #: 3

RE: vacuum help - 5/10/2008 4:08:12 PM    ALMOST STOCK Posts: 979 Joined: 5/13/2007 Status: offline Where do you have your Charcoal Cannister Vacuum hooked, or do you have a Charcoal Cannister? _____________________________ (in reply to sYckmYnded) Post #: 4

RE: vacuum help - 5/10/2008 4:16:07 PM    sYckmYnded Posts: 145 Joined: 5/5/2008 Status: offline none _____________________________ 1990 Mustang LX (in reply to ALMOST STOCK) Post #: 5

RE: vacuum help - 5/10/2008 4:24:24 PM    ALMOST STOCK Posts: 979 Joined: 5/13/2007 Status: offline Are you saying you need to rev to 4K and then if wants to die? Does it backfire also? _____________________________ (in reply to sYckmYnded) Post #: 6

RE: vacuum help - 5/10/2008 4:28:11 PM    sYckmYnded Posts: 145 Joined: 5/5/2008 Status: offline no as soon as i start it up, it jumps to 4k by it self then drops and dies if i feather the gas it will run and what sounds like a back fire through the upper intake _____________________________ 1990 Mustang LX (in reply to ALMOST STOCK) Post #: 7

RE: vacuum help - 5/10/2008 4:37:41 PM    ALMOST STOCK Posts: 979 Joined: 5/13/2007 Status: offline It definitely sound like you have a vacuum leak because mine did the same thing! 1st time was the hose from the Charcoal Canister, 2nd time was the PVC valve came out of the grommet and both time I had the same problem you're talking about  Here are a few more vacuum diagrams that I have that may or may not help? Sorry.... but it's the best that I can do for you, other than saying you'll need to find  that leak . _____________________________ (in reply to sYckmYnded) Post #: 8

RE: vacuum help - 5/10/2008 4:41:27 PM    sYckmYnded Posts: 145 Joined: 5/5/2008 Status: offline ok man thanks for all the help imma go check the pcv it might have poped out _____________________________ 1990 Mustang LX (in reply to ALMOST STOCK) Post #: 9

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