Vacuum Lines

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BobWrinkle

Member
Joined
Dec 19, 2005
Messages
1,201
I want to replace all my vacuum line siwth silicon hopefully finding a fucked line in the proces (idling issues then solved)

Which lines should i change first??

Which ones are most likely to cause idle issues?
 
All the vacuum hoses connected to your intake manifold can cause idle problems if there is a hole in them, but there can be several causes for crappy idle - spark plugs, idle stepper, intake leak somewhere, cam angle sensor, air flow meter, etc. You can take off the vacuum lines and check them out one by one with visual inspection by giving them a bit of a stretch. New vacuum lines are cheap enough to replace anyway so yeah, process of elimination to track down your cause is a good idea if you cant get the intake system tested for air leaks. :wink:
 
while your there check all the water hoses, i just blew a heater hose on the way to work... not fun changing a hose at 10pm after work when its raining.... might as well change all the hoses if you can.....
 
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