Dual climate control blowing heat on AC (DCCV removal instructions in post #107)

[CabinFever]

Hello Rod,
Worked on car this morning and swapped out the driver side sensor with the passenger side sensor. I still have the same problem. Cold air on driver side and hottttt air on passenger side. The exchange made no difference. Is it the dual climate hot water valve? I have tried disconnecting it and reconnecting it with ac on. Is it stuck open? Any info you may have would be highly appreciated.

[crweidinger02]

Hello. I'm new here and was wondering how to find the temp. sensors inside the car, so i can try and switch them around to see if thats my problem. I have a 2005 LS w/o heated seats. Thanks, Charles

[shorod]

Welcome to the forum!

I'm not sure about the 2005. On the 2002, you can stick your head under the dash and look up, the sensors are white and somewhat obviously installed in the center ductwork. There were three on the driver's side (or was it two?) and one on the passenger side.

Have you tried the self diagnostics that have been posted a few times on the forum?

-Rod

[crweidinger02]

Thanks for the fast reply. I have just done the check and it says 27-98 & 12-65...I assume thats a new DCCV ? If thats it do you have any idea how much the cost ? Thanks, Charles

[shorod]

I don't think I'd start with a DCCV. The 1265 code indicates Cold air bypass door actuator circuit failure. The 2798 indicates that the driver coolant control valve circuit short to ground. That one will take some troubleshooting to verify the problem is the DCCV rather than the wiring between it and the DATC control unit.

-Rod

[crweidinger02]

Thanks, what i did was swap around the two hoses coming to the DCCV and it started working the opposite way. For a temp. solution i just plugged off the one side with a cap and plugged the hose. seems to work for now. I have heat and air on the driver side and just air on the passenger side. Ill take it to the dealer Tue. hope all is well till then. Thanks for all your help. Charles

[RJLipscomb]

Originally Posted by shorod

I don't think I'd start with a DCCV. The 1265 code indicates Cold air bypass door actuator circuit failure. The 2798 indicates that the driver coolant control valve circuit short to ground. That one will take some troubleshooting to verify the problem is the DCCV rather than the wiring between it and the DATC control unit.

-Rod

My 2006 has the same 2798 code. If I read the thread above, I see that this is the DCCV and that the DCCV is located on the left side of the radiator. Driver side is hot and pass is fine. Are there 2 valves - one drivers side and one passenger side? Should I just replace it (or both)? what does it cost and where do I get it... Ford?

[shorod]

There are two valves, but they are incorporated into a single assembly. When you buy a DCCV, you get the whole assembly. You can get them from the dealer or from some online parts sources. I use Fast Parts Network for mine and was pleased with the service.

-Rod

[RJLipscomb]

Thanks for the fast reply. I see the DCCV. Is there only one fastener holding it on and do I need to plug the coolant lines? It looks like a bear to get to. Will removing anything above or around it aid in the DCCV removel?

[shorod]

I did most of the replacement from underneath. Somewhere along the line someone posted steps to to replacement, try searching the forum and possibly one of the other forums (or Google). If you still can't find the detailed steps, send me a private message and I'll see if I can dig them up this weekend.

-Rod

[RJLipscomb]

This is the procedure that I found online:

This is for the Dual Coolant Control Valve
Removal V8
1. Drain the engine coolant. Refer to Workshop Manual, Section 303-03 for details.
2. Remove the air cleaner outlet pipe. Refer to Workshop Manual, Section 303-12 for details.
3. Remove the radiator upper sight shield.
4. Remove the passenger side upper radiator support bracket.
5. Disconnect the upper radiator hose from radiator.
6. Remove air conditioning receiver drier retainer and position aside.
7. Disconnect the auxiliary coolant flow pump electrical connector.
8. Remove the 2 (two) bolts from the auxiliary pump on radiator fan shroud.
9. Disconnect the heater hose at intake manifold and at the bottom of auxiliary pump.
10. Remove the auxiliary coolant flow pump.
11. Raise the vehicle.
12. Remove the lower splash shield.
13. Remove the bolts for the DCCV bracket.
14. Lower the vehicle.
15. Remove the retainers for hydraulic cooling fan reservoir (passenger side of engine) and position aside.
16. Mark the heater hoses at the DCCV for identification and disconnect the 3 (three) quick disconnect fittings. Refer to Workshop Manual, Section 412-00.
17. Disconnect the DCCV electrical connector.
18. Disconnect the heater hose at upper radiator hose.
19. Remove the DCCV.
20. Transfer the hoses and bracket from old DCCV to new DCCV.
Installation
1. Reverse the removal procedure to install new DCCV.
2. Torque the DCCV bracket bolts to 80 Lb-in (9 N.m).
3. Torque the upper hydraulic cooling fan reservoir fastener to 53 Lb-in (6 N.m) and lower/side fastener to 106 Lb-in (12 N.m).
4. Torque the auxiliary coolant pump fasteners to 80 Lb-in (9 N.m).
5. Torque the air conditioning receiver drier to 53 Lb-in (6 N.m).
6. Refill the engine coolant. Refer to Workshop Manual, Section 303-03 for details.
7. Repeat Steps 1-3 of the diagnostic procedure to verity repair.

It seems like a lot of steps when I can put my hand on the DCCV from above. Also, does anyone know what the part number is and where I can get it. Lots of online search and nothing comes back as the DCCV

[shorod]

You might need to e-mail Torrie at Fast Parts Network with your request. He's good at quickly responding to inquiries. And no, I don't have any connection to them, I'm just a satisfied customer.

-Rod

[danielsatur]

Bought a new Bosh DCCV on EBAY for $99 and Free shipping.

BOSC XR822975 Heater Valve - ALL EUROPEAN Auto Supply,INC.
1-800-ALL-EURO

Two days shipping.

[RJLipscomb]

What was it called? I just checked ebay, there are returns on a few things but none on DCCV. I've read (above) that the part number is YG378, ebay shows a part number YG355? Fast Parts Network calls it a "Valve Assembly - HTR WTR". No return on ebay. Call me stupid, but I'm not confident about ordering something with no definitive description online. Ford doesn't even list a DCCV. SCREAMING OUT LOUD!

[RJLipscomb]

And, did you follow the steps listed above to remove/install the DCCV or did you use a simpler method?