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heaterhose58l.jpg Heater Hose Routing for 5.8L
[url=http://www.supermotors.net/registry/media/624513][img]http://www.supermotors.net/getfile/624513/thumbnail/58lexploded.jpg[/img][/url]

Reversing the heater core hoses ( 8 ) AT THE HEATER CORE will not cause any problems, and may help remove debris from the heater core.
To bypass a leaking heater core, disconnect the supply (lower, hot) hose at the engine and the outlet (with T) at the heater core.  Loop the hose still attached to the engine back to the open nipple.  Set the remaining hose out of the way.

1 Existing Screw (Part of Cowl Top Outer Panel) 
2 Dipstick (Part of 6007) 
3 Bolt, Manifold to Compressor N805334-S2
4 A/C Manifold and Tube 19D734
5 Wiring Assembly 9D930
6 A/C Compressor and Clutch Assembly 19D629
7 Thermactor System 19618
8 Hose 381260-S320A
9 Clamp (5 Req'd) 389628-S100 390761-S100
10 Clip (4 Req'd) 19N704
11 Wiring (Part of 14401) 
12 Hose Clamp (2 Req'd) 376240-S100
13 Fan Shroud 8146
14 U-Nuts (Part of 8146) 
15 Radiator 8005
16 Condenser to Evaporator Tube 19835
17 Tag A/C Service Instructions (Part of 19C808 ) 
18 Hose (2 Req'd) 381260-S360A
19 Engine Vacuum Supply Reservoir 9J442
20 A/C Evaporator Housing 19850

The hard tube bolted to the alternator is [url=https://www.amazon.com/dp/B000C14GKW]this[/url] for E4OD trucks. The version for other transmissions (with the small nipple for the throttle heat return) has not been available for years.

[url=https://www.supermotors.net/registry/media/1172003][img]https://www.supermotors.net/getfile/1172003/thumbnail/throttlebodytap.jpg[/img][/url] . [url=https://www.supermotors.net/registry/media/1172002][img]https://www.supermotors.net/getfile/1172002/thumbnail/throttleheaterbypass.jpg[/img][/url]

For more info, [url=http://www.fourdoorbronco.com/board/showthread.php?t=5230]read this article[/url].
[url=http://www.supermotors.net/registry/media/172860][img]http://www.supermotors.net/getfile/172860/thumbnail/smallblockcooling.jpg[/img][/url]

Heater core installation:
[url=http://www.supermotors.net/registry/media/830769][img]http://www.supermotors.net/getfile/830769/thumbnail/heatercore8096.jpg[/img][/url] . [url=http://www.supermotors.net/registry/media/883864][img]http://www.supermotors.net/getfile/883864/thumbnail/acboxin.jpg[/img][/url] . [url=http://www.supermotors.net/registry/media/743849][img]http://www.supermotors.net/getfile/743849/thumbnail/heatercore.jpg[/img][/url]
heaterhose58l.jpg | Hits: 18478 | Posted on: 5/3/07 | View original size (297.09 KB)

Heater Hose Routing for 5.8L


Reversing the heater core hoses ( 8 ) AT THE HEATER CORE will not cause any problems, and may help remove debris from the heater core.
To bypass a leaking heater core, disconnect the supply (lower, hot) hose at the engine and the outlet (with T) at the heater core. Loop the hose still attached to the engine back to the open nipple. Set the remaining hose out of the way.

1 Existing Screw (Part of Cowl Top Outer Panel)
2 Dipstick (Part of 6007)
3 Bolt, Manifold to Compressor N805334-S2
4 A/C Manifold and Tube 19D734
5 Wiring Assembly 9D930
6 A/C Compressor and Clutch Assembly 19D629
7 Thermactor System 19618
8 Hose 381260-S320A
9 Clamp (5 Req'd) 389628-S100 390761-S100
10 Clip (4 Req'd) 19N704
11 Wiring (Part of 14401)
12 Hose Clamp (2 Req'd) 376240-S100
13 Fan Shroud 8146
14 U-Nuts (Part of 8146)
15 Radiator 8005
16 Condenser to Evaporator Tube 19835
17 Tag A/C Service Instructions (Part of 19C808 )
18 Hose (2 Req'd) 381260-S360A
19 Engine Vacuum Supply Reservoir 9J442
20 A/C Evaporator Housing 19850

The hard tube bolted to the alternator is this for E4OD trucks. The version for other transmissions (with the small nipple for the throttle heat return) has not been available for years.

.

For more info, read this article.


Heater core installation:
. .