Guests - If You want access to member only forums on HSO. You will gain access only when you sign-in or Sign-Up on HotSpotOutdoors.

It's easy - LOOK UPPER right menu.

Sign in to follow this  
Followers 0
heat checker

Vacuum leaks

9 posts in this topic

I have a 2000 Ford F350 4x4 with the ESOF. Have narrowed down a vaccum leak to the part in between the canister and the outgoing lines to hubs and vent controls. If I pull vaccum lines off this part and bypass the part by hooking together with a hose, the vaccum motor pump will shut off, otherwise it runs continuos. I'm assuming this part is a solenoid that sends vaccum to the hubs when 4wd is activated.(three wires going to it). Question is, does anyone know the name of this part and how much to replace? I can't seemm to find the part on NAPA or Ford websites. Thanks for any help you can provide.

Share this post


Link to post
Share on other sites

Its called a vaccum hub solenoid. If you plugged off the lines out of the solenoid and it doesnt leak then, you will more then likely have hub seals leaking which are very comon. If it still leaks with the line from the hubs to the solenoid plugged then I would replace the solenoid.

Share this post


Link to post
Share on other sites

Cannot find anything with that name while searching either NAPA or Ford websites. Found something called "purge solenoid" along with "canister" in emissions section. Sounds like maybe the right part as it is somewhat of a "purge" of vaccum that locks and unlocks the hubs, but emissions doesn't have anything to do with it, does it?

Share this post


Link to post
Share on other sites

Your right it isnt an emission part. It is a vaccum hub solenoid is this gas or diesel?

Share this post


Link to post
Share on other sites

It's a 7.3 deisel. Computer searches are an animal of their own as far as the way it's worded. Have tried every configuration I can think of and come up empty. Best bet is something I learned when I farmed is take the part in and throw on the counter, tell them I need one of these, and walk out with the right part. I just don't want to be "surprised" by the price of it. Some electrical stuff can be outragous. I can't believe these parts are that hard to put a name on, as I think it's a fairly common problem with the ESOF.

Share this post


Link to post
Share on other sites

This is the name right out of the book "Pulse vacuum hublock (PVH) solenoid". The parts guys will know it by "vacuum hublock solenoid".

Share this post


Link to post
Share on other sites

If the hub vacuum seals are leaking, you can change over to manual locking hubs and never have to deal with them again.

As far as a vacuum leak at the hub lock solinoid, you will want to get that replaced, because it can affect your selector modes on you heater/a/c system and other vacuum operated stuff.

Good luck!

Share this post


Link to post
Share on other sites

After getting stuck trying to pull boat out of access in sand, having to unload and go around to cement landing, went to Ford and thy fixed me right up, $53 for a solenoid. Snorted around the yard and everything works fine, including the air vents.

Thanks for the imput.

Share this post


Link to post
Share on other sites

Sounds like it would have been easier to fix it before you went to the lake! blush

Thanks for posting the fix!!

Share this post


Link to post
Share on other sites
Guest
This topic is now closed to further replies.
Sign in to follow this  
Followers 0



  • Posts

    • Next up Grow Lights, I have a south facing window in my den that I use to start plants with. I have a big shelf at window height then I use glass blocks and put steel closet racks on top to set my plants on. I can stack about three levels high. Above all of this I have a three bulb flood light fixture This year I went out and bought three 15 watt grow lights. I had to buy some socket extenders so the grow lights would screw into the floodlight sockets. Tried them out last night and they are pretty dang bright. I am going to have them on during cloudy days and in the evening to see if they help promote growth. Any day now I should have some tobacco coming up and I will see if the lights help speed up their growth.
    •       [When asked her occupation:] "Destroyer of the works of the Devil by the direct order of God."
    • I think the Wild vs Jets games are pretty awesome atmosphere-wise. They have a lot of fans that travel down here for games too. It would appear to be a fun place to watch a game in Winnipeg for sure!
    •   And we've never won the war on homicide yet either
    • Have heard that's a fun arena to catch a game at.
    •     Actually I haven't advocated anything. Just pointing out the War on Drugs hasn't been a success along with skepticism that anyone can "win" it   I'll leave the debate of legalization and the pros and cons of doing such to others    
    • The problem of prescription abuse has been recognized on a national level, but it must not fit the agenda, since there was no funding appropriated to go with the legislation.         On the national level, Congress this year passed the Comprehensive Addiction and Recovery Act(CARA), which increased to 275 the maximum number of patients for whom a physician can provide medication-assisted treatment (MAT) for opioid dependence. In a provision aimed at controlling usage and reducing diversion, the law allows prescribers or patients to request partial prescription refills and then opt to have the remainder filled within 30 days.
    • Just found some at Maynard's Tackle.
    •   They're legal until they fall into the wrong hands.  But I haven't heard of many cases where doctors or patients have ended up in prison for distributing narcotics.  So far, the suggested remedy for the epidemic seems to be for the states to set up online information sites so the public can be "educated" about the dangers of using addictive drugs.     So, apparently, armored vehicles, swat teams, and prison sentences are the answer for illegal drugs, and education is the key for legal drugs,              
  • Our Sponsors