My A/C problems solved
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From: Liberty Hill, TX (Austin)
Originally Posted by pcimino
Does anyone know what the spec temperature that's supposed to come out of the system? The techs should have some idea of the temp vs ambient. I keep reading people with temps like 45~49 deg F. I had the TSB done and it lowered my average temp from 55 to 52 F.
I want to complain to the dealer but need to know if I'm out of spec.
I want to complain to the dealer but need to know if I'm out of spec.
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>...... RotaryZZ, are you saying regulator and amplifier being one in the same. ........
Well, I thought they're the same thing, aren't they?
I'm not 100% sure if the performance of the A/C has improved after the new regulator/amplifier. Regardless, the A/C can't quite handle once the heat outside has gone up to 95F+ or so. Maybe I should have asked the dealer to check on the freon level next time.
Well, I thought they're the same thing, aren't they?
I'm not 100% sure if the performance of the A/C has improved after the new regulator/amplifier. Regardless, the A/C can't quite handle once the heat outside has gone up to 95F+ or so. Maybe I should have asked the dealer to check on the freon level next time.
脾臓が痛みました
Joined: Mar 2005
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From: Land of Peaches, Pecans, and Peanuts
Originally Posted by RotaryZZ
>...... RotaryZZ, are you saying regulator and amplifier being one in the same. ........
Well, I thought they're the same thing, aren't they?
I'm not 100% sure if the performance of the A/C has improved after the new regulator/amplifier. Regardless, the A/C can't quite handle once the heat outside has gone up to 95F+ or so. Maybe I should have asked the dealer to check on the freon level next time.
Well, I thought they're the same thing, aren't they?
I'm not 100% sure if the performance of the A/C has improved after the new regulator/amplifier. Regardless, the A/C can't quite handle once the heat outside has gone up to 95F+ or so. Maybe I should have asked the dealer to check on the freon level next time.
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Glad to hear one RX-8 is actually cooling frosty. I have been to the dealer and 52 degrees is the coldest they colud get it.
If there is the #1 dis-satisfation on my RX-8 is the AC...at times at the stop light it will cycle and blow a spurt of hot air, the dealership still cant figure that one out.
If there is the #1 dis-satisfation on my RX-8 is the AC...at times at the stop light it will cycle and blow a spurt of hot air, the dealership still cant figure that one out.
脾臓が痛みました
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From: Land of Peaches, Pecans, and Peanuts
try reprogramming your a/c. also, have them check to see that it has the specified amount of freon in it. seems a some people have found that their systems were a little low.
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Joined: Jul 2005
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From: Atlanta, GA
I just tried this on my 6 week old Shinka (05) and unless I'm hallucinating, the air is significantly colder now... weird!
What does that re-program DO exactly, just curious - because if it was "supposed" to be that way, wouldn't the car come that way stock?
What does that re-program DO exactly, just curious - because if it was "supposed" to be that way, wouldn't the car come that way stock?
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From: Kallyforniiya
Yeah; and isn't it weird that you can toggle between two sets of firmware like that? Why would Mazda have a second set of settings hidden away in the car? But if you go back through this thread, you'll see a description of how it changes. IIRC, it now goes into recirc mode and stops cycling as much.
脾臓が痛みました
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From: Land of Peaches, Pecans, and Peanuts
Originally Posted by wedge357
The programming can be lost when the battery, A/C power or ECU is disconnected (car servicing, etc.).
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From: Orlando, FL
Originally Posted by pcimino
Does anyone know what the spec temperature that's supposed to come out of the system? The techs should have some idea of the temp vs ambient. I keep reading people with temps like 45~49 deg F. I had the TSB done and it lowered my average temp from 55 to 52 F.
I want to complain to the dealer but need to know if I'm out of spec.
I want to complain to the dealer but need to know if I'm out of spec.
ie, if you take a 5 minute ride with the fan on 3 and recirc vs a 15 minute ride with the same settings. Theoretically, the longer you run the system, the colder the parts get so less heat to deal with, lower readings. Most of the a/c enhancing products tell you to run for 15-20 minutes for final stabilized readings.
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Joined: Mar 2015
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From: Eastern, NC
the short answer is, cars built after 9/2003 don't qualify for the AC Amp TSB (i think).
if your car was built after 9/03 or your have had the TSB performed, you can reprogram the A/C. I never had a problem with my A/C, but decided to try reprograming it anyways, and now it is even colder than it was before.
these instructions have been posted before, but to save people from searching...
1. Make sure the car is off AND the HVAC fan is off AND the A/C on/off button is off.
2. Press and hold the front defroster (on the left) AND air source (recirc/fresh air) buttons
3. Continue pressing the buttons in step 2 and turn the key to ACC for 3 seconds
4. Continue pressing the buttons in step 2 and further turn the key to ON (NOT START) for 3 more seconds.
5. Verify the programming update by observing the REAR defroster LED blink 3 times.
6. Release the two buttons from step 2 and start the car.
if your car was built after 9/03 or your have had the TSB performed, you can reprogram the A/C. I never had a problem with my A/C, but decided to try reprograming it anyways, and now it is even colder than it was before.
these instructions have been posted before, but to save people from searching...
1. Make sure the car is off AND the HVAC fan is off AND the A/C on/off button is off.
2. Press and hold the front defroster (on the left) AND air source (recirc/fresh air) buttons
3. Continue pressing the buttons in step 2 and turn the key to ACC for 3 seconds
4. Continue pressing the buttons in step 2 and further turn the key to ON (NOT START) for 3 more seconds.
5. Verify the programming update by observing the REAR defroster LED blink 3 times.
6. Release the two buttons from step 2 and start the car.
My car was built 9/22/03 but it wont take these steps (no defrost blinking light after steps complete). Is there something I'm missing or are cars built in 9/03 considered "before" and not capable of this updated programming.
Bumping an old thread instead of creating a new one.
My car was built 9/22/03 but it wont take these steps (no defrost blinking light after steps complete). Is there something I'm missing or are cars built in 9/03 considered "before" and not capable of this updated programming.
My car was built 9/22/03 but it wont take these steps (no defrost blinking light after steps complete). Is there something I'm missing or are cars built in 9/03 considered "before" and not capable of this updated programming.
When I get a chance, I'll try it on my '04.
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Joined: Sep 2015
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From: Phoenix, AZ
I'm guessing the last 6 of your VIN is between 000001-118171? If so and the programming doesn't work as described, your car still has the original A/C amplifier. I just replaced mine (about an hour ago!) with a later-04 unit I picked up for $50. The programming works now.
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From: Phoenix, AZ
It was acceptable driving today in ~95° heat, but we'll see what happens when it hits 120° this weekend (no, I'm not making that up, weather.com says it will hit 120 on Sunday and Monday!)
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