Vacuum lines?
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Post Fiend
Joined: Mar 2011
Posts: 10,080
Likes: 5
From: Backwoods of Snowflake AZ
Vacuum lines?
Ok so today I went out and was tracking down all my vacuum lines on my 88 F150 C6. I found about 5-6 of them broken which is more or less all. (Now I know why my trans wouldn't shift into 3rd the day the engine let go).
So since I have to rebuild an engine and drop it in I figure more then likely more vacuum lines will get broken so I should just replace them. I looked at o'rielly and autozone and cannot find vacuum lines at all. Can I run hoses that are less likey to break that are small enough (I found Vacuum hoses they are like washer fluid lines just smaller)? If not where can I get the vacuum lines?
With my C6 and all the dirt in my area do y'all think that maybe with the broken vacuum lines the modulator may go bad? Should I replace that too?
(All I could find on my C6 not shifting into 3rd is either a bad modulator or broken vacuum line since it shift the other gears fine.)
Trav
So since I have to rebuild an engine and drop it in I figure more then likely more vacuum lines will get broken so I should just replace them. I looked at o'rielly and autozone and cannot find vacuum lines at all. Can I run hoses that are less likey to break that are small enough (I found Vacuum hoses they are like washer fluid lines just smaller)? If not where can I get the vacuum lines?
With my C6 and all the dirt in my area do y'all think that maybe with the broken vacuum lines the modulator may go bad? Should I replace that too?
(All I could find on my C6 not shifting into 3rd is either a bad modulator or broken vacuum line since it shift the other gears fine.)
Trav
Elder User
Joined: Oct 2008
Posts: 524
Likes: 1
From: Mesa, AZ
get about 20 feet of 5/32 rubber line. I got rid of all that plastic crap. Fullsizebronco has a write up on it too. Extremely easy.
Replace Plastic Vacuum Hoses with Rubber - FSB Forums
Replace Plastic Vacuum Hoses with Rubber - FSB Forums
Posting Guru
Joined: Mar 2010
Posts: 2,234
Likes: 2
From: Upstate NY
get about 20 feet of 5/32 rubber line. I got rid of all that plastic crap. Fullsizebronco has a write up on it too. Extremely easy.
Replace Plastic Vacuum Hoses with Rubber - FSB Forums
Replace Plastic Vacuum Hoses with Rubber - FSB Forums
I'm replacing my vacuum lines too
Senior User
Joined: Jul 2008
Posts: 121
Likes: 0
From: Republic of Texas
I just completed doing this to my truck last weekend. All the lines were brittle and suspect, so I bought bulk rubber vacuum line and replaced everything. With a little work and some zip-ties, everything is nice and tidy. Well worth the very few bucks...
Cheers,
JD
Cheers,
JD
Posting Guru
Joined: Mar 2013
Posts: 1,726
Likes: 3
I've been putting this off too. All my lines are broken and my truck idles at 1100 rpms because of it.
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Post Fiend
Joined: Mar 2011
Posts: 10,080
Likes: 5
From: Backwoods of Snowflake AZ
WOW 1100 rpms! My 88 had these broken while it was running sounded still at about 800-900 but then again I couldn't tell because of the fact I don't have a tach yet.
Trav
Trav
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