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1999 Rav4 ac not cooling and copressor trips
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mengal
New User
Aug 11, 2013, 1:07 PM
Post #1 of 8
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1999 Rav4 ac not cooling and copressor trips
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Year of vehicle:1999
Make of vehicle (Toyota)
Model of vehicle ( Rav4)
Engine size (2.0)
Mileage/Kilometers 200k km
My rav4 ac is not cooling at all and the compressor gets very hot then suddenly trips giving a blinking light on the a/c button. the following information may clear the picture for you:[/000000]
1) low side pressure is around 50 and high side is around 100 (PSI)
2) condenser dose not get as hot as it was when the system was cooling
3) dryer glass show some transparent liquid moving
5) continuous hissing sound from evaporator area
6) compressor gets engaged for a while but trips (gets very hot)
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Hammer Time
Ultimate Carjunky
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Aug 11, 2013, 1:34 PM
Post #2 of 8
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Re: 1999 Rav4 ac not cooling and copressor trips
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Sounds like you have a wasted compressor. You would also have to change the condenser along with it because that's where all the debris went. Possible expansion valve too.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Discretesignals
Ultimate Carjunky
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Aug 11, 2013, 3:26 PM
Post #3 of 8
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Re: 1999 Rav4 ac not cooling and copressor trips
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There is a speed sensor on the compressor that monitors the speed of the crankshaft inside the compressor. If the AC amplifier detects no speed signal from the compressor when it commands the clutch on, the AC light will blink.
It could be an electrical problem with the clutch circuit or a mechanical problem inside the compressor. What do you mean compressor is getting hot?
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Aug 11, 2013, 3:27 PM)
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Discretesignals
Ultimate Carjunky
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Aug 11, 2013, 4:00 PM
Post #5 of 8
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Re: 1999 Rav4 ac not cooling and copressor trips
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I would say so too with those numbers, but I was wondering why the amplifier was detected no compressor crank speed? Compressor locking up?
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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Hammer Time
Ultimate Carjunky
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Aug 11, 2013, 4:02 PM
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Re: 1999 Rav4 ac not cooling and copressor trips
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Yes, he already stated it was overheating so chances are the clutch was slipping and the RPM sensor was picking up on that.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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mengal
New User
Aug 11, 2013, 9:36 PM
Post #7 of 8
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Re: 1999 Rav4 ac not cooling and copressor trips
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Thank you guys, I will try to change the compressor and see whether it fixes the problem. it may take few days until I get back to you.
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Hammer Time
Ultimate Carjunky
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Aug 12, 2013, 2:46 AM
Post #8 of 8
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Re: 1999 Rav4 ac not cooling and copressor trips
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No, that's not how you repair AC.
You have to do the entire job all at once which will include a new condenser and receiver dryer which on your car may be combined as one part and then flush the rest of the system with special solvent.
You may also have to change the expansion valve is any debris made it that far. Once those repairs are done, then you have to look for the cause of the compressor failure in the first place which may have been caused by issues with the cooling fan.
If you don't replace the condenser and do it right, you will likely ruin the new compressor and start a cycle that will keep making the problem even worse and more costly.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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