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2003 Buick LeSabre...freon refill still blowing warm air #5189636 08/17/19 02:46 PM
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AshleyQuick Offline OP
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The vehicle was blowing hot air before the refill. Now, it's not exactly hot but still not cold. Any likely problems??

Re: 2003 Buick LeSabre...freon refill still blowing warm air [Re: AshleyQuick] #5189643 08/17/19 02:59 PM
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Nick1994 Online Content
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Early 00's GM cars often have bad blend door motors under the dash, and other bad electronic motors. Might be stuck warm.


2015 Hyundai Sonata 2.4L 102k STP Synthetic HM 10w30 & OEM
2000 Toyota Camry 2.2L 234k Mobil Super HM 10w40 & Fram Ultra
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Re: 2003 Buick LeSabre...freon refill still blowing warm air [Re: Nick1994] #5189666 08/17/19 03:25 PM
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Originally Posted by Nick1994
Early 00's GM cars often have bad blend door motors under the dash, and other bad electronic motors. Might be stuck warm.


Is there an easy way to check that?

Re: 2003 Buick LeSabre...freon refill still blowing warm air [Re: AshleyQuick] #5189670 08/17/19 03:30 PM
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What are your high and low side readings as well as ambient temp? Without these it's all a guess.


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Re: 2003 Buick LeSabre...freon refill still blowing warm air [Re: Chris142] #5189678 08/17/19 03:40 PM
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Originally Posted by Chris142
What are your high and low side readings as well as ambient temp? Without these it's all a guess.


Can these readings be found by visiting an auto parts store? Otherwise, I have no idea how to measure for those.

Re: 2003 Buick LeSabre...freon refill still blowing warm air [Re: AshleyQuick] #5189684 08/17/19 03:45 PM
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skyactiv Offline
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Take it to a Valvoline Instant Oil Change location and have them check the pressures and refill if needed.
Auto parts stores wont help you, but they will sell you a can with a worthless gauge for half the price of getting Valvoline to do a proper vac and fill.


Wife: 15' Audi A4 quattro 6 speed manual
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Re: 2003 Buick LeSabre...freon refill still blowing warm air [Re: AshleyQuick] #5189743 08/17/19 05:01 PM
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Originally Posted by AshleyQuick
Originally Posted by Nick1994
Early 00's GM cars often have bad blend door motors under the dash, and other bad electronic motors. Might be stuck warm.


Is there an easy way to check that?


I had a truck years ago with a bad blend motor
I was able to remove the glove box and reach in the dash to move the blend arm
Maybe that’s an option for you as well

Re: 2003 Buick LeSabre...freon refill still blowing warm air [Re: Nick1994] #5189837 08/17/19 07:18 PM
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Originally Posted by Nick1994
Early 00's GM cars often have bad blend door motors under the dash, and other bad electronic motors. Might be stuck warm.


Correct. My 2001 LeSabre has the same issue. I believe there is electronic servo motor that can be reached from under the glove box. In my case, the driver's dash vent will blow warm air and the passenger's is Ice cold. I have yet to fix the issue. Make sure your AC is working first! You don't want to blame a "blend door" without investigating your AC system.

Re: 2003 Buick LeSabre...freon refill still blowing warm air [Re: AshleyQuick] #5189915 08/17/19 09:06 PM
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I had a similar problem on a similar car, the actual door inside was completely displaced from its mount.

Agree with the others, a proper diagnosis should have been performed prior to simply assuming it was a case of refrigerant deficiency. Overfilling refrigerant can be detrimental to a system.


Change your thinking...not your oil!
Re: 2003 Buick LeSabre...freon refill still blowing warm air [Re: AshleyQuick] #5189974 08/17/19 11:03 PM
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likely its over charged

Re: 2003 Buick LeSabre...freon refill still blowing warm air [Re: AshleyQuick] #5189978 08/17/19 11:08 PM
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Have to make sure the radiator fans work, and you need high and low pressures. Also is the compressor clutch engaging?


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Re: 2003 Buick LeSabre...freon refill still blowing warm air [Re: AshleyQuick] #5189981 08/17/19 11:16 PM
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Put your hand on the Accumulator with the AC on....If it's ice cold, So is the Evaporator. If ice cold....Suspect a Temp Blend Door issue.


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Re: 2003 Buick LeSabre...freon refill still blowing warm air [Re: AshleyQuick] #5190201 08/18/19 09:10 AM
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How did you determine it needed more refrigerant in the first place? Did it have a leak that you fixed? Did you vacuum the system down afterward? How many ounces of refrigerant did you add and how did you measure the amount you put in?


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Re: 2003 Buick LeSabre...freon refill still blowing warm air [Re: AshleyQuick] #5191140 08/19/19 10:10 AM
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So I took the car back this morning and he showed me, using a UV light and yellow tinted glasses, that the refrigerant was leaking/splattering. He said I'd need a new climate control hose assembly.

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Re: 2003 Buick LeSabre...freon refill still blowing warm air [Re: Nick1994] #5191276 08/19/19 01:28 PM
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Originally Posted by Nick1994
Early 00's GM cars often have bad blend door motors under the dash, and other bad electronic motors. Might be stuck warm.

If it is a blend door issue, the system probably is over charged now. If someone is not familiar with A/C systems, they usually do more harm than good by assuming the system is low on charge and start putting refridgerant in.
The best answer to this is to have someone qualified look at it and stop guessing.

Last edited by Lubener; 08/19/19 01:32 PM.

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