Engine Where Do Explorer 5.0L Upper Intake Water Lines Go?

markinms · Dec 26, 2018

I have a 1996 Explorer/Mountaineer 5.0L upper/lower intake assembly I'm prepping to go on my vehicle. On the bottom of the upper intake there is what looks like a t-fitting (a large inlet/outlet in middle with a smaller inlet/outlet on each side). The fitting is rusty, unlike the vacuum lines, so I'm assuming this is some type of water hookup.

Can someone let me what this fitting is for and where the hoses route to/from?

Thanks for any help with this.

Mark

General karthief · Dec 26, 2018

Pics please

markinms · Dec 26, 2018

Here's a photo of what I'm talking about. Hope this helps.

Mark

General karthief · Dec 26, 2018

Is that on the underside (bottom)?
Or a pic of more of that area of the intake

markinms · Dec 26, 2018

Here's a pic of the whole underside.

nickyb · Dec 26, 2018

Water runs on lower intake only,please don't hook waterline to upper.

markinms · Dec 26, 2018

I've always thought water runs on lower intake only; however, in this situation it "appears" water ran in/out of this fitting.

Any idea what the fitting is for?

General karthief · Dec 26, 2018

That's something somebody used for adapting some vacuum lines

markinms · Dec 27, 2018

The guy I bought the manifold setup from pulled it from a stock 96 Mountaineer he found in a salvage yard. It wasn't something added on. It was definitely not used as a vacuum port; the rusty fitting indicates water.

I spent late last night searching Stangnet and found a write-up by someone who did a swap using the same 96 Mountaineer intake as I'm trying to use. I'm going post on his thread and hope he's watching for questions.

Thanks for the feedback you guys have offered.

Boostedpimp · Dec 27, 2018

Thats for vacuum

Mustang5L5 · Dec 27, 2018

markinms said:
Here's a pic of the whole underside.

Center port is vacuum, while the two on the edges are in fact coolant. They are not needed in the Mustang application, so feel free to remove that fitting (and others) and drill/tap for the mustang vacuum fitting and other fittings.

That's how I did my explorer upper...i'll see if I can find a pic

Mustang tree for the FPR, EGR and vacuum source. Brass fitting in the rear for MAP sensor or aux vacuum. Front brass fitting for the charcoal canister. You can also see I blocked off the front plenum fitting and routed the PCV hoses similar to the 1993 cobra setup.

markinms · Dec 27, 2018

Thank you! Your confirmation and pic helps a lot. I now know what to do.

I've already drilled & tapped the lower manifold for the ACT Sensor and rear water outlet for the EGR Spacer.

You did a great write-up on this swap!

Mark

87boriscoupri · Feb 28, 2021

nickyb said:
Water runs on lower intake only,please don't hook waterline to upper.

I know the thread is old but the line is for water to upper intake it was a TSB for icing up throttle bodies but just plug off !unless u live up north

mikestang63 · Feb 28, 2021

plug off the water lines and any vacuum lines not being used.

Engine Where Do Explorer 5.0L Upper Intake Water Lines Go?

markinms

General karthief

wonder how much it would cost to ship you a pair

markinms

General karthief

wonder how much it would cost to ship you a pair

markinms

nickyb

I gotta say i never painted my nuts, Never Ever

markinms

General karthief

wonder how much it would cost to ship you a pair

markinms

Boostedpimp

Mustang5L5

That is…until I whipped out my Bissell

markinms

87boriscoupri

New Member

mikestang63

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Engine Where Do Explorer 5.0L Upper Intake Water Lines Go?

wonder how much it would cost to ship you a pair

wonder how much it would cost to ship you a pair

I gotta say i never painted my nuts, Never Ever

wonder how much it would cost to ship you a pair

That is…until I whipped out my Bissell

New Member

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