2012 Toyota Highlander

Asked by Jul 18, 2017 at 11:14 AM about the 2012 Toyota Highlander Limited

Question type: Maintenance & Repair

I recently asked a question on my 2012 Toyota highlander A/C. I now have a little more information that might help with the diagnoses. First to repeat some of the original posted question.

Its a Toyota certified highlander. On our test drive revealed A/C issues which should have been caught during the 160 point inspection but it was passed. It was running cool and fan full blast barely kept us comfortable. Our salesman had someone  (not in service department, that's 4 blocks away, never left the property) add Freon. A/C worked fine on the trip home, 40 minute drive. Next day on a 2 hr (one way) trip A/C was very intermittent. Ran warm then cool, cold only on 2 occasions. This happened over 25 times on this trip. I'm concerned about the real issue as to what's going on with the A/C. When I took it back to the dealer they told me it was over charged. Following is the exact wording of the service order.
Op-Code 2301
Concern: Recharge A/C system with R134A Freon. Add dye to system - black light test inspecting the A/C system for leaks. $199.92 (Price includes labor, ac dye and up to two lbs of R134A Freon).

Cause: Freon Level at 2.56 lbs, should be at 1.7
Correction: Add Dye and adjusted Freon Level, no leaks found and working as designed.

My concern is that I think it is still having issues. I have an appointment to take it back in. They said they would check for leaks but they already did that and the work order says no leaks. This is all covered by the dealership so far but I don't think they are addressing the real issue. Which down the road when it's worse will end up me paying for repairs. I could be wrong about it still having issues so my questions are this.

1. Running the A/C for over 6 hrs with it overcharged as stated above can that cause damage to show up in the future.
2. When its 90* and hotter the A/C directly it front of the vent is not freezing. At least not like in the Ford Transit, no comparison. The temperatures at 85* or below it seems to run freezing with my hand right on the vent. Is this normal or am I correct in thinking something is still not right with the A/C and the dealership is just band-aiding it until it becomes my problem. They sold it with passing all of Toyota's 160 point inspection. When it's hotter and doesn't seem to be working like it should you can have the fan on high and after time (seeing how the whole car needs cooled) has passed with it on high I should be needing a jacket. This is not the case, I'm comfortable.

1 Answer

261,625

To check the temp to see if the A/C is working properly, place a thermometer in the center vent with the fan on low. After ten minutes the temp should be in the low 40's. Low levels of Refrigerant will feel like it is working when it is 70-75 degrees, but over 85 and it gets warm. So keep hounding the dealership till it is fixed.

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