Vacuum Leak
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Posting Guru
Joined: Jul 2008
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From: Morehead, Ky.
Well I'm still at it. Pulled a vacuum on all the lines (I THINK) that goes to the hubs.
I then removed the line at the switch, and pumped 15" into the line.
It held just fine. I pulled 10" at each hub port, no leaks.
I now believe it might be the vacuum switch, because when I turn the hubs on ,the vacuum dumps immediately somewhere.
I then removed the line at the switch, and pumped 15" into the line.
It held just fine. I pulled 10" at each hub port, no leaks.
I now believe it might be the vacuum switch, because when I turn the hubs on ,the vacuum dumps immediately somewhere.
Hotshot
Joined: Jan 2011
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From: Puget Sound
That was the very first part that failed after I aquired "Stinky". I had to get mine at the dealership, but you might find one online. I called it the ESOF module, but the wiring diagram calls it a "Vacuum Hublock Solenoid".
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Joined: Jul 2008
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From: Morehead, Ky.
Thanks Tugly: I just can't think now that it is anything else. Maybe if I hook my hand pump up to the switch,and turn it on, it might show up for sure.
I might get my wife to assist and try that. Thanks Jim
I might get my wife to assist and try that. Thanks Jim
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Joined: Jul 2008
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From: Morehead, Ky.
At how many inches of vacuum,should the pump kick off.
I am kicking off @ 16" and restarting @ about 13 "
Does this sound correct?
I have a very slow leak in the RH Hub. 1" in about 5 seconds.
I am still searching for answers.
I am kicking off @ 16" and restarting @ about 13 "
Does this sound correct?
I have a very slow leak in the RH Hub. 1" in about 5 seconds.
I am still searching for answers.
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Posting Guru
Joined: Jul 2008
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From: Morehead, Ky.
Thanks Tugly: I think I have about solved it. I still have a slow leak in the right hub.
I have replaced the outside seal, but have not changed the yellow seal yet. I replaced everything about 18 mo's ago, when I did the ball joints.
Oh well, if it wasn't for these little problems I might be bored. Thanks Jim
I have replaced the outside seal, but have not changed the yellow seal yet. I replaced everything about 18 mo's ago, when I did the ball joints.
Oh well, if it wasn't for these little problems I might be bored. Thanks Jim
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