Notices
RX-8 Discussion General discussion about the RX-8 that doesn't fit in one of the specialty forums.
Sponsored by:
Sponsored by: CARiD

HVAC Issues

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old 06-15-2004 | 02:11 PM
  #26  
Kewl's Avatar
Former RX8 Owner.
 
Joined: Sep 2003
Posts: 405
Likes: 0
From: Corrales, NM
Got my 8 in Sept. AC has always been poor, at best. Had the AC Amp changed and while it did improve some it is still far less than satisfactory.

This is not what I would expect of an AC. In New Mexico the AC is important....almost a requirement.
Old 06-15-2004 | 02:26 PM
  #27  
Renesis2004's Avatar
Renesis2004
 
Joined: Nov 2003
Posts: 33
Likes: 3
From: Akron, OH
Thumbs up A/C Fixed!!

I had the same complaints about my A/C. Since I bought the car in November (in Ohio), I hadn't really noticed until Spring.

I took it to the dealer, and they found that the refrigerant was pretty low. Apparently it wasn't leaking, so it must have come from the factory that way. That still didn't help enough.

A couple of weeks later, I took it back and asked them to check again. By then, they knew of a problem with some Air Amplifiers (a board associated with the A/C, in the car's interior). They had already had to replace it in two other 8's.

After the Air Amplifier was replaced, the A/C was nice and cold. i've had other cars that were colder, but this is just fine now. If your A/C is anemic, have this checked out.
Old 06-15-2004 | 02:37 PM
  #28  
blue flash's Avatar
Registered User
 
Joined: Mar 2004
Posts: 378
Likes: 0
From: b f e
you might want to get the a/c checked out mine works fine .its been in the 90's here and after 5min i have to turn mine down to the 2nd setting
Old 06-15-2004 | 02:43 PM
  #29  
dcfc3s's Avatar
RX-7 Guru
 
Joined: Jan 2003
Posts: 347
Likes: 6
From: Pensacola, FL
If you don't feel the AC is up to par, get a thermometer and measure the outlet temp. Turn the AC on full blast/recirc, hold the engine speed at 3000 RPM, and stick a thermometer in the vent. There should be a spec in the shop manual of what range is acceptable outlet temp - if it's high, something's wrong. Either there's not enough freon in the system, or it may need an updated part.

Regardless. that will give solid ammo for taking the car to the dealer.

If the AC system is like the RX-7's, it should be easy to get to and service all the components. For example, on the RX-7 you just remove the glovebox (easy) to get to and remove the evaporator core in the dash - you don't have to pull the dash out or anything. Dunno if Mazda's doing it with the '8, but many RX-7's had port-installed or dealer-installed AC - some loophole made it way cheaper to put in the AC at the port or dealer than at the factory. So, the system was design so that it was relatively easy to install. A good mechanic could probably install the components in an hour and a half, then another hour to pull the system to vacuum and charge.

RX-7's with the R-12 freon had ICE COLD air conditioning. Yeah, it ate performance from the car, but it would freeze you out. My '90 convertible has 35 degrees at the vents - ouch!

Dale
Old 06-15-2004 | 02:47 PM
  #30  
Elara's Avatar
Registered
 
Joined: Feb 2002
Posts: 4,447
Likes: 0
Originally posted by dcfc3s
If you don't feel the AC is up to par, get a thermometer and measure the outlet temp. Turn the AC on full blast/recirc, hold the engine speed at 3000 RPM, and stick a thermometer in the vent. There should be a spec in the shop manual of what range is acceptable outlet temp - if it's high, something's wrong. Either there's not enough freon in the system, or it may need an updated part.

Regardless. that will give solid ammo for taking the car to the dealer.

Dale
Mine tested at 38 degrees, which they say is normal- and my a/c is definitely not normal. I'm going to have to argue with them, it seems. 38 may be normal when it stays at that temp, but mine is still cycling back and forth. They kindly set it to recirc for me (because I'm an idiot, you know, and apparently they assumed I didn't take that into consideration) and told me it was fine. *sigh*
Old 06-15-2004 | 03:02 PM
  #31  
srm858's Avatar
Registered User
 
Joined: Nov 2003
Posts: 154
Likes: 0
From: Walpole, MA
My AC has cycled since I bought it (8/03). I am still waiting for the AC amp to come in for over 5 weeks. It's supposed to be in next week. I hope it fixes the problem, because the AC just doesn't cut it. Putting it on recirculate doesn't help at all, which is surprising, since it does on other cars I've owned.

Once the new amp is installed I'll come back and report. It just got really warm here and I'm sweating in my car! I just fixed the AC in my old Honda, so maybe I'll start driving it until the amp comes in.

All the other problems have been resolved with my 8. If they take care of this it will be perfect and I will be totally in love with it.
Old 06-15-2004 | 06:35 PM
  #32  
fordracing19's Avatar
Registered User
 
Joined: Jun 2004
Posts: 29
Likes: 0
From: denton/gainesville tx
Originally posted by dcfc3s

If the AC system is like the RX-7's, it should be easy to get to and service all the components. For example, on the RX-7 you just remove the glovebox (easy) to get to and remove the evaporator core in the dash - you don't have to pull the dash out or anything. Dunno if Mazda's doing it with the '8, but many RX-7's had port-installed or dealer-installed AC - some loophole made it way cheaper to put in the AC at the port or dealer than at the factory. So, the system was design so that it was relatively easy to install. A good mechanic could probably install the components in an hour and a half, then another hour to pull the system to vacuum and charge.


You have to pull the dash to remove the hvac unit. It's a pita and only paid 2.7 warranty.
Old 06-15-2004 | 08:58 PM
  #33  
Deslock's Avatar
WWFSMD?
 
Joined: Jul 2003
Posts: 597
Likes: 0
From: Massachusetts, USA
My 8 was manufactured in Feb 2004 and doesn't have this problem (my car stays cool when it's 90+ degrees F and humid). If your dealer is giving you a hard time about replacing the A/C amp/controller/whatever, file a complaint with mazdausa.com.
Old 06-15-2004 | 10:44 PM
  #34  
affenage's Avatar
Registered User
 
Joined: Mar 2004
Posts: 185
Likes: 0
Originally posted by Elara
Some of you that are complaining about the complainers probably have a newer 8 with the updated AC amp. Those of us who got our car way back when have had some problems- mine is still cycling badly, going from warm to cold and back again, about twice every minute. And my dealer is being an *** about it, insisting nothing is wrong. Mostly annoying, but still a small issue.
I only complained about people without a real problem - for awhile it seemed too many poepl were complaining about things that are normal (like the compressor kicking off at idle or at high acceleration.

Two suggestions? First, try treating the service managers like the idiots they sound like and print out the TSB, use a yellow highlighter and highlight the descripion of the cycling problem, and read it to the service manager after saying "my problem is: "
Second, if they haven't checked the temp of the air flow WHILE THE CAR IS MOVING, suggest that they do. Driving may make the cycling more noticeable.

I actually think I have an A/C problem. My car is a 9/03 build. My temp is fine, and it doesn't change from warm to cold air, but I do have to listen to one of the most annoying whining and groaning every two minutes or so that sounds like a compressor is letting air in and out of a balloon. I plan on having it looked at when I go in for routine stuff. But I have been basking in the cold air that this car is putting out without a complaint. Good luck with yours - and getting them to fix it for you.
Old 06-15-2004 | 10:55 PM
  #35  
snap-on's Avatar
Registered User
 
Joined: Mar 2004
Posts: 1,050
Likes: 0
All A/C systems cycle at idle.

Two suggestions? First, try treating the service managers like the idiots they sound like and print out the TSB, use a yellow highlighter and highlight the descripion of the cycling problem, and read it to the service manager after saying "my problem is:
All Service Managers are not idiots...
Old 06-16-2004 | 05:32 AM
  #36  
RX8by's Avatar
Registered User
 
Joined: Aug 2003
Posts: 182
Likes: 0
From: Landrum,SC
All Service Managers are not idiots... No they know exactly what they are doing. They are payed not to service your car under warrenty. It is the system. Mechanics don't want to work on it because they get payed less and the Dealer gets money for less warrenty work. Mazda will never make it in this time unless they wake up and realize they have one shot to make people happy after that its another brand.
Old 06-16-2004 | 06:25 AM
  #37  
affenage's Avatar
Registered User
 
Joined: Mar 2004
Posts: 185
Likes: 0
Originally posted by snap-on
All A/C systems cycle at idle.
I have said that twice already in this thread. However, Elara seems to be having a problem convincing her service manager that her a/c is cycling abnormally, so my suggestion was to make sure that they are actually running the car instead of idling it while checking the air.

All Service Managers are not idiots...
Whoever said that? I read the words you quoted, and nowhere does it even suggest I feel that way. However, had you read the entire thread, you would see the context of this is a particular situation and and a particular service call that Elara is having a problem with.

Last edited by affenage; 06-16-2004 at 06:28 AM.
Old 06-16-2004 | 07:27 AM
  #38  
Adamrotor's Avatar
Sonic the Hedghog
 
Joined: Mar 2004
Posts: 611
Likes: 0
From: EVOLV-Chicago
true true
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
JimmyBlack
Series I Major Horsepower Upgrades
273
02-10-2020 10:23 PM
LB2739
New Member Forum
5
07-09-2019 02:25 AM
Irvinb16
New Member Forum
5
09-11-2015 10:27 PM
tgaffner
New Member Forum
3
09-07-2015 08:49 PM



You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: HVAC Issues



All times are GMT -5. The time now is 04:22 PM.