4X4 Pulse Solenoid
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New User
Joined: Dec 2006
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4X4 Pulse Solenoid
The vacuum pulse solenoid will not hold vacuum. Was wondering if anyone else has had this problem before I buy a new one. With it inline, the airconditioner will not work right as the vacuum is way low. If you plug the line at the solenoid it works fine. I have it off and if you suck on the inlet there is no resistance there. I took it apart as far as I could but see nothing wrong with it. Would like to know a little more about the operation before I order the new one as it's about $70 and would be a bunch to spend if that's not the problem.
Thanks for any help or hints.
Thanks for any help or hints.
Post Fiend
Joined: Jan 2003
Posts: 9,748
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From: Connecticut
The solenoid should be able to hold vacuum. Check out the "Ranger PVH Diagnostics" link in this thread:
https://www.ford-trucks.com/forums/4...oid-valve.html
https://www.ford-trucks.com/forums/4...oid-valve.html
Post Fiend
Joined: Jan 2005
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If you have between a 98 and a 2000 ranger 4x4, the pulse vacume hub system is very problematic. The hubs themselves can even leak. I sugest to everyone that has these hubs to swap them out for a set of manual AVM hubs from tellico 4x4. Thier around 100 bucks and do away with the pulse vacume system and as they are manual hubs, they may even save a little at the pump.
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Just an update. Got the new solednoid and put it in and it hasn't locked the hubs that easily since we've owned it. We've had it about 4 years and now it works like it should. May eventually have to put the manual hubs in, but for the time being will use the stock unit as it's easier for the wife to use. And it's her truck, so want to keep her happy. Thanks for all the help.
