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Thread: Expansion Valve?
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24-06-2011, 05:14 AM #1
Expansion Valve?
Question for the pros? My toyota sienna van does not cool as good as it should. Compressor is good, ***** level is great but just not cooling very well. Had somone tell me the expansion valve could be bad. Is this a possibility and what does the expansion valve do? What would happen if the expansion valve was not working right?
Thanks
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24-06-2011, 08:49 AM #2
Re: Expansion Valve?
Have you tried cleaning the evaporator filter? Wash the condenser?
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24-06-2011, 10:57 AM #3
Re: Expansion Valve?
Hi mate
I’ll list for you some off problems that cause Toyotas air con system to be inefficient
1- Receiver dryer
a- partially blocked
b- the inside core is lapsed and sent debris to the TXvalve causing inadequate refrigerant flow
2-TX valve not working properly
3- Condenser fans not good enough
4- Heating cooling air damper not fully shutting making the cooling airmixing with heating air
Check and let me know how did u go
Regards
a/cking
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25-06-2011, 02:23 AM #4
Re: Expansion Valve?
Hi Fast ball.
try selecting re-circulating air option so you cool your vehicle and not the USA. Saves alot of fuel as well.
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25-06-2011, 02:17 PM #5
Re: Expansion Valve?
What is a TX valve?
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25-06-2011, 03:49 PM #6
Re: Expansion Valve?
TX =Thermostatic expansion valve
Check the pollen filter if you have one
Cheers
StuTool's ? check ! Condom's ? check !
If you can't fix it , f*ck it !!!
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25-06-2011, 08:49 PM #7
Re: Expansion Valve?
put on recirc does it sound diferent/ it may be on but if flaps not working you get poor efficientcy// is the suction line sweating is it better in morning when cold then say ten mins into a trip/ can you hear a boiling/dripping noise when ac is on.... in the uk our model has a orifice not a tev/x but the states may be different