4WD not engaging
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Senior User
Joined: Jun 2009
Posts: 433
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From: dayton texas
4WD not engaging
i have a little problem. the vacume lines that go to the front diff. have been burnt in half by my headers. i know there was a little plastic peice that the lines went through but it lost. can sombody post pics so i can see how it goes? thanks
Thread Starter
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Senior User
Joined: Jun 2009
Posts: 433
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From: dayton texas
well its hard to explain but the vacume lines that run all the way from the acuator by the batery to the front diff. or just start at the front diff and go up. some where around the frame there was a plastic peice that held the lines to the frame and thats what im looking for. it was like a junction box for the vacume lines or somthing. any help you can offer will be gratefull
New User
Joined: Jan 2007
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Requested diagrams...
I had the same problem. In the end, just use a good quality vacum hose and "re plumb" all the piping, get rid of that cheap, hard plastic line that was used when it was built.
I will try to post the diagrams I used when I did this same job.
I will try to post the diagrams I used when I did this same job.
Thread Starter
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Senior User
Joined: Jun 2009
Posts: 433
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From: dayton texas
so basicilly you just ran new rubberhose all the way from the accuator on the firewall to the front diff?
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New User
Joined: Jan 2007
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Replace the cracked plastic pipes with rubber vaccum hose
Yes, that is how I did it. I bought a package of vacum hose "T" and elbow fittings and some new vacuum hose and just replaced everything. You may need to use some of the existing ends of your current plastic pipes, but if you do just stick those pipes inside a snug fitting rubber vacuum hose, and for good measure wrap that up with electrical tape to ensure you have no leaks. You will be back in and out of 4WD in no time.
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