vacuum lines

FiveOGirl · 10-09-2001, 02:28 PM

ok im putting my engine together and on the left side of the car (passanger side) in the corner near the firewall there is a vacuum tree 4 small vacuum hoses plug into it ... can someone tell me where each goes? or where i can get a diagram?

Rick 91GT · 10-09-2001, 04:01 PM

If my memory serves me correctly, One goes to the EGR valve (This is the short one), the real long one goes to the solonoid that is at the airpump the other goes to the other emissions solonoid that is the hose to the air pump, I don't remember a 4th. The diagram can be found in a Haynes or Chilton manual or the Probst EFI book.

Hope that helps a little

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Check Out My Site 91GT,Holley SysteMAX II Kit-Heads 2.02" x 1.60" port matched to a 1262,Anderson N-61,24#,76mm C&L,Full MAC, No A/C or PS or emissions, 12" K&N Filter,RNH PERFORMANCE Ram Air,Ron Davis Radiator,Full Suspension, SPEC stage III clutch, Lakewood SFI bell, S&W 8pt "X" brace,JAZ seats,3:73's,Welds..etc,4:30's and 31 splines coming very soon!
[b]12.16 @ 113.5, 1.78 60ft..no traction in the 90 degree

over 40 five oh driver · 10-10-2001, 07:51 PM

Fiveohgirl...Rick91GT had good handle on those first three lines. The 4th goes to the other small fitting that comes off the back of the upper intake...the black, metal vacuum tree that has (2) small outlets and one 5/16" outlet? The other (3) as he said go to the EGR valve, and the other (2) go to the Thermactor system/air pump. Hard to explain...but hope it helps.

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92'GT, Keith Craft Racing 306 (10:1 CR), PRO-M 80mm MAF,65MM TB, Edelbrock U/L intake,
TFS-TW heads milled/ported, CompCams XE274HR (.555/.565" lift w/1.6 rockers), A-351 adjustable roller rockers, 30# injectors,
Kirban FPR w/external pump, BBK ceramic coated LT headers, BBK Short H-pipe w/cats, Bassani cat back, Centerforce DF clutch/T.O. bearing...MSD 6AL w/MSD distributor, Steeda Tri axe, aluminum D/S, 3.73's, w/Factory Five U/L control arms. Lakewood 50/50 shocks. Flaming River Manual

10-09-2001, 02:28 PM	#1
FiveOGirl Registered Member Join Date: Aug 2001 Location: san francisco, Ca USA Posts: 52	vacuum lines ok im putting my engine together and on the left side of the car (passanger side) in the corner near the firewall there is a vacuum tree 4 small vacuum hoses plug into it ... can someone tell me where each goes? or where i can get a diagram?

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10-09-2001, 04:01 PM	#2
Rick 91GT Procharged! Join Date: May 1999 Location: Hanover, PA Posts: 1,539	If my memory serves me correctly, One goes to the EGR valve (This is the short one), the real long one goes to the solonoid that is at the airpump the other goes to the other emissions solonoid that is the hose to the air pump, I don't remember a 4th. The diagram can be found in a Haynes or Chilton manual or the Probst EFI book. Hope that helps a little ------------------ Check Out My Site 91GT,Holley SysteMAX II Kit-Heads 2.02" x 1.60" port matched to a 1262,Anderson N-61,24#,76mm C&L,Full MAC, No A/C or PS or emissions, 12" K&N Filter,RNH PERFORMANCE Ram Air,Ron Davis Radiator,Full Suspension, SPEC stage III clutch, Lakewood SFI bell, S&W 8pt "X" brace,JAZ seats,3:73's,Welds..etc,4:30's and 31 splines coming very soon! [b]12.16 @ 113.5, 1.78 60ft..no traction in the 90 degree

10-10-2001, 07:51 PM	#3
over 40 five oh driver Registered Member Join Date: Sep 1998 Location: Oklahoma City Posts: 278	Fiveohgirl...Rick91GT had good handle on those first three lines. The 4th goes to the other small fitting that comes off the back of the upper intake...the black, metal vacuum tree that has (2) small outlets and one 5/16" outlet? The other (3) as he said go to the EGR valve, and the other (2) go to the Thermactor system/air pump. Hard to explain...but hope it helps. ------------------ 92'GT, Keith Craft Racing 306 (10:1 CR), PRO-M 80mm MAF,65MM TB, Edelbrock U/L intake, TFS-TW heads milled/ported, CompCams XE274HR (.555/.565" lift w/1.6 rockers), A-351 adjustable roller rockers, 30# injectors, Kirban FPR w/external pump, BBK ceramic coated LT headers, BBK Short H-pipe w/cats, Bassani cat back, Centerforce DF clutch/T.O. bearing...MSD 6AL w/MSD distributor, Steeda Tri axe, aluminum D/S, 3.73's, w/Factory Five U/L control arms. Lakewood 50/50 shocks. Flaming River Manual