could a vaccum leak cause a loss in power?

1994Vib.RedGT

Member

Aug 19, 2004

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Denver, CO

Jul 13, 2005

#1

• Jul 13, 2005

• #1

I was wondering because when I went to the 1/8th track i ran a best of 9.550 @ 74 mph. I was thinking that with what I have done I should have run at least a little better than that, and I am thinking I have a vaccum leak anyway. so would it affect that?

 

G

Green 94 5.0

Founding Member

Mar 25, 2002

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Ft. Lauderdale, FL

hurricaneperformance.org

Jul 13, 2005

#2

• Jul 13, 2005

• #2

do you have any issues with a surging idle or stalling?

 

1994Vib.RedGT

Member

Aug 19, 2004

585

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Denver, CO

Jul 13, 2005

#3

• Jul 13, 2005

• #3

Green 94 5.0 said:

do you have any issues with a surging idle or stalling?

Click to expand...

yep, i do

 

94TURBO5 O

New Member

Mar 14, 2004

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VA

www.jrfuller.com

Jul 13, 2005

#4

• Jul 13, 2005

• #4

Check your pcv hose and see if it's still attached to the lower intake.

 

1994Vib.RedGT

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Aug 19, 2004

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Denver, CO

Jul 13, 2005

#5

• Jul 13, 2005

• #5

yea, the pcv valve is still in its hole

 

HISSIN50

"How long does it take to get help in here?

15 Year Member

Nov 29, 1999

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Jul 13, 2005

#6

• Jul 13, 2005

• #6

And is the seal tight? The grommets tend to vulcanize, which still allows a leak.

Good luck.

 

CManT1914

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Feb 5, 2004

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Killeen, Texas

Jul 13, 2005

#7

• Jul 13, 2005

• #7

If you want to check all your vacuum lines, you'll need to pull your upper intake off. Are you sure you got the bolts tightened down good? Try spraying some carb cleaner around your vacuum lines and the base of your intake, and if your idle shoots up, you've found your vacuum leak.

 

Mrgreen94gt

SIMMA DA NA!!!

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Jul 16, 2002

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West TN

Jul 13, 2005

#8

• Jul 13, 2005

• #8

I had to replace all the vacuum stuff under the intake plenum recently. The hoses were cracked and the plastic T fitting had broken in half. Replaced it with a brass one and some power-steering hose. Seems a bit tougher than the factory junk.