2003 ford windstar, my heater hose is leaking at the connection to iron pipe, I need a diagram to figure out how to fix

The 2 pipes that are coming through the firewall is your heater core. Simply put one hose on and the other hose to the other pipe. You can run water through the heater core either way. After you install the hoses, put a hose clamp on each one so the hoses don't fall off the pipes.

while facing motor it would be left side. 2 hoses running into fire wall. although not 100% sure heater core is most likely behind glove box.

check for the piston seal leaking ( piston too far out from worn out pads), cracked brake hose, loose hose fitting, broken brake pipe.

try the scrapyard and look at one in their ,or ask a local owner that is just parking up in a supermarket and look at theirs .lots of different ways to overcome this problem but if the pipe has beeen disconnected its because the heater matrix is no doubt leaking

Hi, welcome to FixYa.com my name is Shawn and I will be answering your question.

FORD: 2000-2007 Taurus
2000-2003 Windstar
2004-2007 Freestar MERCURY: 2000-2005 Sable
2004-2007 Monterey
This article supersedes TSB 05-14-5 to update the Service Procedure and vehicle model years. ISSUE: Some 2000-2007 Taurus, 2000-2005 Sable, 2000-2003 Windstar, and 2004-2007 Freestar/Monterey vehicles, equipped with a 4F50N, AX4N, or AX4S transaxle, may exhibit an erratic fluid level reading on the transaxle dipstick and possible leaks around the filler tube and grommet. The condition may be due to a restricted transaxle vent.
ACTION: Repair the transaxle vent restriction by replacing the transaxle vent with a 90° vent stem, small hose clamp, two (2) tie raps, and 24" (61 cm) of 5/16" (8 mm) vacuum hose. The 5/16" (8 mm) vacuum hose will be routed from the 90° vent on the transaxle back to the cowl area, next to the brake master cylinder and tie rapped in place with the end of the hose facing down. Refer to the following Service Procedures.
NOTE: ON WINDSTAR, FREESTAR AND MONTEREY SEAL THE COWL PANEL GRILLE (COWL TOP VENT PANEL) AREA, SEE TSB 06-14-10. NOTE: LEAKS MAY BE MISDIAGNOSED AS COMING FROM THE PAN GASKET. ALWAYS FOLLOW WORKSHOP MANUAL, SECTION 307-01 TO LOCATE THE SOURCE OF A LEAK, AND LEAK CHECK WITH BLACK LIGHT AND DYE. SERVICE PROCEDURE

1. Disconnect the mass air flow (MAF) sensor electrical connector.
2. Disconnect the crankcase vent tube(s) from the air cleaner outlet pipe.
3. Loosen the clamp and disconnect the air cleaner outlet pipe from the throttle body.
4. Release the air cleaner housing clamp(s).
5. Separate the air cleaner cover from the air cleaner tray.
6. Windstar, Freestar and Monterey only: Remove cowl panel grille by following the procedure in TSB 06-14-10.
7. Disconnect the shift cable if located over the top of the vent.
8. Remove the vent, pull straight up on the vent with locking pliers, or carefully pry the vent from the transaxle case.
9. Install the replacement 90° vent stem.
   • Windstar, Freestar, Monterey, Taurus, and Sable with column shifter - Must face to the right rear of the vehicle with the flat edge of vent base parallel to the chain cover boss (Figure 1)
   • Taurus and Sable with floor shifter - Must face to the rear of the vehicle with the flat edge of vent base parallel to the chain cover boss (Figure 2)
   
   
   
   Figure 1 - Article 06-18-13
   
   
   
   
   Figure 2 - Article 06-18-13
   
   
10. Install one end of a 24" (61 cm) long piece of 5/16" (8 mm) vacuum hose to the 90° vent stem and secure with a small hose clamp.
11. Route the vacuum hose back and up to the cowl area and down next to the brake master cylinder. Carefully tie rap the hose in place next to the brake master cylinder (do not tie rap to brake lines), be sure the end of the hose is facing down and not directly above anything hot.
    • Windstar, Freestar, and Monterey (Figure 3, 4, and 5)
    • Taurus and Sable with column shifter (Figure 6)
    • Taurus with floor shifter (Figure 7)
    
    
    
    Figure 3 - Article 06-18-13
    
    
    
    
    Figure 4 - Article 06-18-13
    
    
    
    
    Figure 5 - Article 06-18-13
    
    
    
    
    Figure 6 - Article 06-18-13
    
    
    
    
    Figure 7 - Article 06-18-13
    
    
12. Connect the shift cable, if removed.
13. Install the air cleaner cover and outlet pipe. NOTE: USE THE ALIGNMENT NOTCHES TO CORRECTLY ALIGN THE AIR CLEANER COVER TO THE AIR CLEANER TRAY.
    
14. Install the air cleaner housing clamp(s).
15. Connect the air cleaner outlet pipe to the throttle body and tighten to 35 lb-in (4 N-m).
16. Connect the crankcase vent tube to the air cleaner outlet pipe.
17. Connect the MAF sensor electrical connector.
18. Windstar, Freestar, and Monterey only, follow TSB 06-14-10 to seal and install the cowl panel grille.

PART NUMBER PART NAME 1C3Z-7034-AA Vent

I hope my assistance helped you and resolved your concern, if you need further assistance please ask.

With ford you usually need to replace the entire heater hose, and it is kind of pricey.

The metal hose by the firewall is either your heater core inlet pipe or outlet pipe. These inlet and outlet pipes will develop leaks for a varity of reasons. If this is the source of your leak, you may want to replace the entire heater core which is much easier than trying to fix the leak. The attached link will help you.

http://www.allpar.com/fix/heat.html

http://www.thirdgen.org/heatercore

Please remember to rate this solution. Thanks!

is it near the top? its likely the heater core routing pipe, runs accross the top of the engine. very common problem

please rate. thanks.

Heater Water Hoses




Item Part Number Description 1 N610956-S56 Screw 2 18472 Heater Water Hose, Supply 3 18472 Heater Water Hose, Return A — Tighten to 7-9 Nm (62-79 Lb-In)

PIPE OR HOSE,IF HOSE YES EASY FIX CAN EASILY BE REROUTED