 Vacuum Hoses, Never disconnect more than one at a time |
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| jimtab |
 Feb 28 2011, 05:59 PM
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#1
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Advanced Member  Group: Members Posts: 3,477 Joined: 5-January 03 From: Pacifica, California Member No.: 91 Region Association: Northern California  |
So....AA had a great deal on a set of vacuum hoses for the teener, and because it seemed to be so inexpensive and easy I thought I'd make a change .....the car hunts at idle and that's no good right? So I get the kit, and lay all the precut hoses out on the deck, and start pulling old hoses.....thought I followed the diagram properly and now the car idles nice and even but at 3k...just a little high....so NEVER take off more than one hose at a time unless you actually know which hose goes where....... (IMG:style_emoticons/default/blink.gif)
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| bandjoey |
Feb 28 2011, 06:06 PM
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#2
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bandjoey Group: Members Posts: 4,926 Joined: 26-September 07 From: Bedford Tx Member No.: 8,156 Region Association: Southwest Region |
Hope this helps. You can find other engines here too.
http://www.pelicanparts.com/914/technical_...4_18fi_diag.htm |
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| jimtab |
Feb 28 2011, 06:24 PM
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#3
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Advanced Member Group: Members Posts: 3,477 Joined: 5-January 03 From: Pacifica, California Member No.: 91 Region Association: Northern California |
Just printed it out....the color coding should help....thanks.
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| McMark |
Feb 28 2011, 06:25 PM
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#4
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
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| jimtab |
Feb 28 2011, 06:34 PM
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#5
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Advanced Member Group: Members Posts: 3,477 Joined: 5-January 03 From: Pacifica, California Member No.: 91 Region Association: Northern California |
Mark, I do have a 2.0 but I also had a tee connection that shows in the layout that Bandjoey sent that connects between the press. reg, decel and throttle body....could my engine not be a 2.0 after all???
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| SLITS |
Feb 28 2011, 06:51 PM
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#6
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"This Utah shit is HARSH!" Group: Benefactors Posts: 13,602 Joined: 22-February 04 From: SoCal Mountains ... Member No.: 1,696 Region Association: None  |
Jim, if your idle is 3K, look at the stacked elbow on the plenum .... you may have cracked the hell out of it.
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| Spoke |
Feb 28 2011, 09:05 PM
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#7
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Jerry Group: Members Posts: 6,978 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None 
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You didn't say if you have a D-Jet or L-Jet. If D-Jet, a big vacuum leak will cause the car to think you've opened the throttle even without touching it.
One way to find a vacuum leak is to get carb cleaner and spray it at every vacuum system joint. When you hit the leak, the idle will change as the fluid temporarily plugs the hole and burns away. |
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| Dave_Darling |
Feb 28 2011, 09:28 PM
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#8
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914 Idiot Group: Members Posts: 14,986 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California
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For a 3K idle, you've either left one of the big hoses on the plenum disconnected, or you've got one of them going straight from the air cleaner to the manifold. It usually takes a pretty sizeable vacuum leak to get a 3K idle.
General rule: There should never be a hose that runs directly from the air cleaner to the manifold. There should always be some "component" in the way. (The AAR, the Decel Valve, etc.) --DD |
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| McMark |
Feb 28 2011, 11:20 PM
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#9
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
QUOTE(jimtab @ Feb 28 2011, 04:34 PM)  Mark, I do have a 2.0 but I also had a tee connection that shows in the layout that Bandjoey sent that connects between the press. reg, decel and throttle body....could my engine not be a 2.0 after all??? Let's call it creative plumbing instead. (IMG:style_emoticons/default/shades.gif) |
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| bandjoey |
Mar 1 2011, 12:47 AM
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#10
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bandjoey Group: Members Posts: 4,926 Joined: 26-September 07 From: Bedford Tx Member No.: 8,156 Region Association: Southwest Region |
If there's any ? On the motor and what FI you have post pic of the motor FI and engine nmber and someone will tell you what it is.
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