The vacuum lines going to my TBI are looking pretty sad. Can I just replace them with vacuum hose, running them to the same locations, or do I need to find the same connectors with the 90 degree bends, and the EXACT same inner diameter hose?

Also, the vacuum line that goes from the intake manifold, under the car, and to the brake booster: How do you tell it that has gone bad?

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1984 Fiero SE

Vacuum lines can be replaced by function, meaning that as long as the hose goes from and to the same places as the original lines there won't be any problems.

Regarding the brake booster vacuum line, probably the easiest way to check for leaks would be to listen for hissing along the length of it while the engine was idling. The brake booster doesn't have a reputation of failing, just for reference.

JazzMan

There is a vac filter on the brake booster line mounted on the firewall. This filter does crack due to heat and will cause a leak. If you have a Mighty Vac, you can pull a vac on the booster line at the plenum and tell if it is leaking.
Don

Winter is rapidly approaching and a good winter project is to replace ALL the vacuum lines with Rodney's stainless steel vacuum line kit. Then you will never again have to worry about vacuum line problems.

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I replaced all my vacuum lines before I put my engine back in yesterday. It was really easy to do, as long as you put them where they are suppose to go. Mine was missing over half of them when I got it.

You can pick up a pacage of different color vacuum lines at most auto places for $15, and they don't melt from the heat of the engine. Pretty nice for $15.

Thanks, Ryan

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quote Originally posted by ka4nkf: There is a vac filter on the brake booster line mounted on the firewall. This filter does crack due to heat and will cause a leak. If you have a Mighty Vac, you can pull a vac on the booster line at the plenum and tell if it is leaking. Don

Hi Don, Ok I`ll bite--how do I tell if theres a vacum if your pulling air back through it ?? Disconnect at Plentum, then ??? Thanks.........

quote Originally posted by Firefighter: Winter is rapidly approaching and a good winter project is to replace ALL the vacuum lines with Rodney's stainless steel vacuum line kit. Then you will never again have to worry about vacuum line problems.

I looked on Rodney's site and can't find them. do you have the URL?

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'87 Fiero GT Fastback Auto.

Didn't look real hard huh?

You can't post a link the way his site is set up.

1.) Go into his online store.
2.) Click the engine tab.
3.) Third item down in the right hand column.

Try this. It should take you right to the page.

http://www.rodneydickman.com/n71.html

Yes, as the guys said and it's labeled, V6 Under Manifold Vacuum Lines. They are not cheap, but sure will put your mind at ease. With them installed, if someone suggests that you have a vacuum problem, you can ask them for their second best guess. Ed

[This message has been edited by Firefighter (edited 11-03-2005).]

quote Originally posted by carbon: Didn't look real hard huh? You can't post a link the way his site is set up. 1.) Go into his online store. 2.) Click the engine tab. 3.) Third item down in the right hand column.

I looked, I just didn't think they'd be called V-6 Under Manifold Vacuum Lines. I was scanning for just vacuum lines. It's amazing how the human mind works! :-)

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'87 Fiero GT Fastback Auto.