Ford F 350 again

Chris English · Aug 27, 2017

Yesterday while poking around under the hood, i found a vacuum solinoid with the vac. tubes broken. A internet search showed it was a hub locking solinoid. This truck currently has manual hubs and no sign of a dash switch. Is it possible this 1996 model started off with auto lock hubs controlled when the 4x4 shift was engaged?
Or mmight this control something else ?

David G · Aug 27, 2017

Thanks, I have been looking for an fast idle solenoid for my MH44 EFI, this will work great.

Chris English · Aug 27, 2017

I'll put it in the mail tomorrow if you like

David G · Aug 27, 2017

No need, I can get one, would the computer throw a fit if it is missing?

MikeinKy · Aug 27, 2017

Yes, I think some that old had auto hubs with vacuum. Most were probably changed to manual.

da.bees · Aug 27, 2017

Following the lines to where they go will answer your question.

Steve@Advance · Aug 27, 2017

If you unplug the electric connector, start the engine, you'll probably get a check engine code.

Scan the code, it will tell what it does.

Then you'll need to plug it back in, clear the code, and leave it connected, just to satisfy the ECM.

chevytaHOE5674 · Aug 27, 2017

The auto hubs on a 96 f350 are not vacuum actuated those didn't come around until the superduty in early 1999.

Hobo,NC · Aug 27, 2017

More info what engine do you have... Pink could go to the EGR valve black would be the vacuum source.... Look for a vehicle information decal under the hood are radiator support.

Was it plugged up if so post the wire colors.

4play · Aug 27, 2017

EGR was usually a green line, but the EGR vacuum regulator would have a vent too or round cap on top of the solenoid. My guess is AIR bypass or diverter valve solenoid (smog pump/thermactor system)

Hobo,NC · Aug 28, 2017

Whut he said... :wink:

Chris English · Aug 28, 2017

Ford 460 gas. The vacuum lines were broken and melted. No sign of the remains. Runs
just the same with this solinoid out

Ford F 350 again

Chris English

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David G

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Chris English

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David G

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MikeinKy

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da.bees

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Steve@Advance

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chevytaHOE5674

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Hobo,NC

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4play

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Hobo,NC

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Chris English

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