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2004 Saturn Vue 3.5 liter A.C. not cooling up to par. Way too much air pressure. Released some out of the valve but won't go down.. Is there a separate valve to adjust in the line to drop the pressure?

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IN AN AIR CONDITIONING UNIT? How are you checking this excessive pressure?

Posted on Sep 07, 2009

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1 Answer

2004 saturn vue engine growls after it is shut off


Could be the a/c pressure equalizing, or pressure in the cooling system.
You may need to open the hood and listen to see where the noise is coming from.

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A/c blowing hot air even after a recharge with RED TEK 2004 Saturn Vue Redline 3.5L engine


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04 Saturn Vue AC blows cool air for about one minute then hot air


Above solution is correct, had the same problem with mine and it was the expansion valve.

Jul 06, 2010 | 2004 Saturn VUE

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2004 SATURN VUE HAS PROBLEM BLOWING COLD AIR WHEN SITTING IDLE. IT WILL COOL IF I AM DRIVING AND GIVING IT GAS CONTINUOUSLY. FREON OK. CHECKED OUT BY MECHANIC WHO REPLACED THE "EXPANSION VALVE". STILL...


did you check if the cooling fans are working? this is very important, because they lower the pressure of the freon before passing throughout the expansion valve and getting into the evaporator,more pressure means highter temperature, , of course when you are driving the air flow throughout out the condenser lowering the freon temperature in the condenser and lowering the freon pressure at the high side, tha's way the temperature inside the car is lower ... you can have a similar problem if the condenser is partially plugged..hope this was very helpful...

Aug 05, 2009 | Saturn Vue Cars & Trucks

2 Answers

Same Problem, warm air at low RPM's 2006 Saturn Vue


I agree with philip, i have not studied the electrical system. but to my best guess the electric fans are tied into the engine cooling system. when the engine is not requesting the fans to come on. then their is very little air passing threw the cooling package. When their is no cool air passing by the condenser this will not draw the heat out of the refrigerant leaving excess heat in the system and when the cab fan blows this is were the excess heat is getting dumped. then at higher speeds their is enough air passing threw the condenser and radiator to cool them both.

Jul 06, 2009 | 2004 Saturn VUE

1 Answer

My dad needs to change the thermostat in my 2003 saturn vue AWD


Check "maintenance" Or other headings that are similar. Using a Haynes manual? Sometimes their stuff is all over the book and not where you'd expect it to be. To relieve fuel pressure find if you have a schrade valve (looks like a tire valve) under a cap on the fuel rail. Put a rag under it and cover the top so it does not spray.
Generally to keep system from becoming air bound, fill with engine running and heater on high, allow for thermostat to open and top off when level drops.

Apr 18, 2009 | 2003 Saturn VUE

1 Answer

Oil pressure gauge


they are full of it, u should show oil pressure as soon as the engine starts, this may be a sticky guage or a sender but that advice they gave u is bull, that is for sure, I am a GM technician.

Jan 20, 2009 | 2004 Saturn VUE

2 Answers

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It is your compressor

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