2003 Heater Control Valve - 5 valves

[Stephan Lanz]

Hello
Do you know where assy valve YG 355 is installed (Heater Control Valve - 5 valves) ?
Best regards
Steven

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[biddle]

Please include the model year of the car in the subject on future post. I've added this for you.

 

[BluByeU]

YG355 is the one & only heater control valve. Part # YW4H18495AA.
It is on the right hand side(pass. side) of the radiator about half way down. It has. 3 hose ports. The bottom is the in Port, the 2 that are side by side are the outs going to the heater. The 2 outs are solnoid controlled opening & closing on demand by the climate control module.
Rock Auto sells these for around $168.
Hope this helps as I can not find anything else regarding 5 valves anywhere on my car or in my shop manual.

 

[Stephan Lanz]

Thank you very much for your interest.
My T Bird is a 2003.
The part numbered 2R8Z18495AA Heater Control Valve Front
I've already changed.
I cannot find the location of part YW4H18495AA. Does this part fit on my 2003 T Bird ? If yes, where is it installed ? do you have perhaps a photo or plan ?

 

[Stephan Lanz]

The VIN is 1FAHP60A03Y109855

 

[BluByeU]

The 2 part numbers, YW4H18485AA and number 2R8Z18495AA both numbers are for the same part, the Heater Control Valve.
You can Google the two numbers & you will see this. Either will work for you in your 03.

Please share with us what your troubles are with your vehicle & maybe someone here can get you going if the heater valve is not fixing the problem.

 

[Stephan Lanz]

Thank you.

The 10 Amp fuse of the A/C blows after 3 minutes. A/C has no other problems. Power consumption of the A/C compressor is under 5 Ampere. If the A/C compressor is powered directly by the battery, it works fine.

 

[BluByeU]

If you haven't change out the AC CLUTCH relay. It is located in fuse box under the hood. Relay 08. It is in the R-hand corner. There are 2 both similar in shape & size, #8 is the inner one.
Keep us up dated.

 

[Stephan Lanz]

Yeah, already done. Problem remains identical.

 

[BluByeU]

I would think Next in line is the clutch.

 

[Stephan Lanz]

Only 3 Ampere consumption has the clutch with direct power supply.

In general, what are the known shortcomings of these 2003 models ?