Broken Vacuum Line =Rough Idle? (PIC) -

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post #1 of 8 Old 12-22-2010, 11:21 PM Thread Starter
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Broken Vacuum Line =Rough Idle? (PIC)

I replaced an exhaust manifold gasket last week and in the process broke a vacuum line.. I repaired it by sliding a small metal tube over the two broken ends then put heat shrink over the metal tube and lines to seal it..

I've got a slight rough idle down under 1000k rpm.. Would this be the cause since it's not a perfect line..

Is that a part the dealer would have? Would I have to buy the entire vacuum line assembly? and How much it would cost?

Also curious what this line is connected too? I would appreciate any feedback..

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post #2 of 8 Old 12-22-2010, 11:31 PM
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That is the cruise control vacuum servo. You can get the official part from the dealer, but you can also buy some vacuum hose from an auto parts or hardware store.
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post #3 of 8 Old 10-25-2011, 07:18 PM
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I need that hose as well since I bought a used cruise control kit. I'll call the dealer tomorrow, but maybe someone has a ballpark figure for price on just the vacuum tube. I don't want to use a generic hose.
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post #4 of 8 Old 10-25-2011, 07:44 PM
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Originally Posted by ????? View Post
. I don't want to use a generic hose.
Why not? That plastic line gets brittle and breaks. Rubber hose gets rotten but usually out lasts the plastic line plus the hose is like $.20 a ft.
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post #5 of 8 Old 10-25-2011, 07:54 PM
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Duct tape?
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post #6 of 8 Old 10-29-2011, 11:02 PM
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Originally Posted by chris142 View Post
Why not? That plastic line gets brittle and breaks. Rubber hose gets rotten but usually out lasts the plastic line plus the hose is like $.20 a ft.
I just prefer a factory look. I have some 3/8" hose for it, but it's a bit awkward compared to the narrow vacuum tube with the 90 bends in it.
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post #7 of 8 Old 10-29-2011, 11:29 PM
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Disconnect that line where it Ts near the manifold & plug the T with your finger & see if the idle smooths out. If not then you may have another cracked line. The line that goes from that T to above the battery which controls the heater vents is also prone to cracking. If all your heat only comes through the defroster vents that line is cracked.
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post #8 of 8 Old 10-30-2011, 01:52 AM
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I blew cigarette smoke in mine to see if it was cracked, sure enough, the smoke started coming out of it along the firewall. It got chafed rubbing against the firewall and was leaking. Cut in half, slide a piece of rubber hose over and seal. It fixed the leak and should take a lot longer to rub through to make it leaked again...
You shouldn't be afraid of using rubber hose, it would probably do better, I have to take great care moving my stock hoses around, they are really brittle from all the underhood heat. Just get it in black color and it would look stock.

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