Need help EFI heater water supply

[bronccar]

What a weekend.

16 days until super cel (self imposed build deadline) and discovered that my TB and fuel rail were NOT from a mustang. Ordered replacements last night...

Now I discover that the heater water tube isn't mustang either.

I'll post a pic of what I have shortly, but I don't even know how this works.

I assume I need to get the correct tube and use that one (instead of bypassing all of this) - but I have no reference for how to plumb it.

Water neck connects to upper port on water pump?
Lower water pump to heater water tube?

Any pics greatly appreciated.

TIA, I know I've been like a headless chicken lately but it's moving fast right now and the surprises have me reeling a bit.

 

[pcf_mark]

I have 95 Mustang EFI on my rig and used rubber hose for both lines. Both hoses run out over to the fender like factory then tunr back toward the engine. The top one to the fitting at the end of the intake near the t-stat housing. The lower one ends up on the water pump. Was really easy to do, I have great heat and looks factory.

I do not have a shut off valve if that is important to you. It was just another failure waiting to happen.

 

[bronccar]

Here's how it was when I got it.





Totally different tube than mustang - this is a single pass (pics coming)

 

[pcf_mark]

Looks like my '95 Mustang set up. A pic from the pass side would help confirm. If you replace the front heater nipple with the stock Bronco unit that points out 90 degrees toward the pass fender that will help. Run the hoses out toward the fender well then back into the heater core. Gets them out of the way of the engine and no kinks. The other hose comes off the water pump so that is already pointed toward the fender well.

 

[bronccar]

Here's what I have now.

 

[TTTGOWYO]

If you need something from my 97 Explorer stuff, if it works... let me know..

 

[bronccar]

Thanks Tyler.

My head is spinning right now. Up all night worrying about shit I've forgot - like where do I tie in my temp gauge?

Trying to KISS stuff today - even that is proving to be a challenge lol

 

[904Bronco]

The connector from the manifold is the feed side and the one at the water pump is the return.

So the heater valve should go in the feed side to keep hot water from the heater core.

If you are keeping your current set up then you could use the 88-93 mustang hose from the tube to the pump.

I have never seen the 1/4" cooling fitting on the Drvrs side rear of the manifold? Usually it is on the (88-93 mustang manifold) it is on the rear passenger side, where you have a plug now.
If you are not using those fittings to cool anything... Just loop those fittings with some 1/4 silicon hose and EFI fuel line clamps. That way you can be sure that the ECT always has water moving by it even when the heater valve is closed.

Temp sender> isn't there a port for it in the front passenger side of the intake? that is where it usually is...

 

[DirtDonk]

...Up all night worrying about shit I've forgot - like where do I tie in my temp gauge?

If you use at least the existing steel heater hose fitting, ECT sensor has it's home right there in the front of it. If you use an EB elbow, you'd have to drill and tap the top for the sensor.
For the gauge, perhaps you could use one of these: http://www.wildhorses4x4.com/product/Thermostat_Housing/Bronco_Water_Pumps where there is already a threaded boss in the thermostat housing? I think others have done it, so maybe they'll chime in to see if it's as simple as that.

Paul

 

[DirtDonk]

Of course, if that's the wrong angle and you need one of the more vertical EFI style housings, I've seen those with the threaded boss on them as well.

Good luck.

Paul

 

[bronccar]

I have the boss in the water neck, was going to use it for the Dakota fan controller - guess it can serve double duty? I'll find out.

Thanks ya'll, I'll post more in a bit trying to finish up a few things.

 

[airbur]

Hard to get good pics with it all put together but...

 

[bronccar]

Thanks man.

I think, bottom line is need to get the proper heater water tube to keep things simple.

I could plumb what I have but that tube in the front would be going straight up and no way the hose isn't going to kink. If I go to a 90 I lose that sensor.

Can I ditch this?

Have no EGR. Thanks!

 

[airbur]

My intake doesn't have that port.

 

[bronccar]

Like it's plugged or not there at all?

 

[airbur]

I have an aftermarket Edelbrock intake so most of the unnecessary ports were removed...

https://www.summitracing.com/parts/edl-2944

 

[bronccar]

Ohhhh gotcha.

I bought a tube on ebay, gonna plug that one and set the rest up stock.

 

[904Bronco]

Ohhhh gotcha.

I bought a tube on ebay, gonna plug that one and set the rest up stock.

Whether you bought an Explorer or Mustang tube, they are going to have at least one 1/4 you are going to have to deal with / plug.

 

[bronccar]

The connector from the manifold is the feed side and the one at the water pump is the return.

So the heater valve should go in the feed side to keep hot water from the heater core.

If you are keeping your current set up then you could use the 88-93 mustang hose from the tube to the pump.

I have never seen the 1/4" cooling fitting on the Drvrs side rear of the manifold? Usually it is on the (88-93 mustang manifold) it is on the rear passenger side, where you have a plug now.
If you are not using those fittings to cool anything... Just loop those fittings with some 1/4 silicon hose and EFI fuel line clamps. That way you can be sure that the ECT always has water moving by it even when the heater valve is closed.

Temp sender> isn't there a port for it in the front passenger side of the intake? that is where it usually is...

Thanks.

I am going to plug the driver rear fitting.

As for the sensor, I assumed the sender on the intake was for the mustang harness / ECU so I didn't think it would tie into gauge.

Then it occurs to me (after a good night's rest lol) that I could put sender there for gauge too.

 

[bronccar]

Whether you bought an Explorer or Mustang tube, they are going to have at least one 1/4 you are going to have to deal with / plug.

It's a mustang - yeah I noticed that.