Last post on Oct 18, 2006 at 9:17 AM
You are in the Mazda RX-8
What is this discussion about?
Mazda RX-8, Coupe
Jun 17, 2005 (3:28 pm)
I recently purchased a new 2005 RX-8 and found out it emits a high pitched beeping sound when the car gets above 75 mph. It continues to do this until I get the speed back down below 74 mph. And no, it is not above 8k rpm (actually it is around 4k rpm when it does this. And no, it is not the pressure in the tires that is causing this. Since I had just purchased the car the day before I should of just asked for a new one, but I didn't b/c I was sure the dealership would take care of me ASAP. Sadly, this has not happened. My car has been in at the dealership for 4 days now and I never got any call backs from them reassuring me that the problem would be fixed and giving me an estimated time. Can you beleive they set me up with a peice of crap rental car with enerprise that is charging me $15 a day and I purchased a $31,000 car from them 3 weeks ago. Needless to say I wasn't pleased and it wasn't until I got the general manager on the phone that I got some answers. He is first of all reimbersing me for the charges of the rental car and is giving me an RX-8 to drive until mine is fixed. He said that this is a known issue and that they are being sent a disk to re-program my car so that this stops. Unfortunately I am going to have to wait until Monday at the earliest to get my car back. If you are thinking about buying a Mazda in the future from Team Mazda in Atlanta Ga. on Thorton rd. you may want to reconsider. I am an easy going guy and never once raised my voice to them about this, but until I got in touch with the general manager and my salesman I was getting a big "SCREW YOU" from everyone else.
#886 of 1414 rx8world....I don't notice this noise you mention ...
Jun 18, 2005 (6:15 am)
but could it possibly be something to do with the metals in the exhaust system heating and expanding? A friend has a new GMC Yukon and the exhaust system on it is down-right annoying with all the popping and cracking it does. they were told it is perfectly normal. Just a guess here!!
gil in atl...that beep would absolutely wear me out. I hate car noises (rattles, beeps, bongs) that won't stop. What a strange problem too. Sorry to hear the dealer is low life - Mazda backs their cars up with a loaner program and your dealer should be honoring that without you getting ugly on them.
Is that a problem exclusive to the 05's? Never heard of it before and my 04 doesn't do it. Good luck getting it fixed. And, remember, the car is GREAT, you will love it once you get it fixed. Look around and find a dealer who will take good care of you. Mine is great but it's quite a distance from Atlanta to WV!!
#887 of 1414 Re: Anoying beeping [gil_in_atl]
Jun 18, 2005 (8:57 am)
This isnt going to help much but I will pass it on anyway, maybe make you feel a bit better.
A friend recently purchased a new BMW Z4 3.0 in MA. She took it into Inskip BMW in RI for some minor warranty repairs. When she asked about a loaner she was told that Inskip will only provide a "free" loaner:
1 if the car was purchased there, & 2, if she had purchased a premium service package that would include the "free" loaner. Hows that for adding insult to injury on a $43K car!
I had owned a BMW in CA and Long Beach BMW always gave me a free loaner, so I followed up with BMW US and they said that the availability of loaners, free or othewise, was at the discretion of the dealership (Mercedes dealers take note!). Inskip BMW btw also has an Enterprise dealership and they offer a reduced rental fee, obviously Enterprise has come up with a winning business model by putting outlets in dealership service offices.
Having said all that, my Mazda Dealership, Vashon in MA did give me a free loaner when I left my RX8 for a scheduled service, go figure.
#888 of 1414 Re: rx8world... to [lhess]
Jun 18, 2005 (10:35 am)
Maybe the metals....that sounds logical.Thanks a lot man.Another one question...at idle how many rpm should the engine work?
I love my 8 very much....it's been a year that i've purchased it and every time i drive it i feel as happy as the first day.
#889 of 1414 Re: Anoying beeping [ukjim]
Jun 20, 2005 (10:53 am)
I thought we got free loaners for any warranty service work done on our cars?
This is from Mazda, not from the dealership.
I had some warranty work done on my car and I got the rental. Granted, I had to show them a credit card to get it, but that was all. nothin was charged to my card.
#890 of 1414 Charlotte NC 17+K miles, vibration/squeaking noise with exhaust
Jun 20, 2005 (2:48 pm)
I kept hearing and feeling a vibration in the rear when at idle sometimes....rev it up and it goes away....so I get out and look....squeak/vibration is coming from exhaust....there's some rubber bushings in the connection to supports that are there to prevent such noise/vibration..etc, but they are not getting the job done.
Might just be simple adjustment or some new bushings, but still an annoying inconvienance for car this new.
Also,,,,anyone else having the chrome/silver finish on their shift knob flaking off?
Another PIA to deal with....
Yes its fun to drive...lets leave it at that.
#891 of 1414 hot knob
Jun 20, 2005 (5:48 pm)
"Also,,,,anyone else having the chrome/silver finish on their shift knob flaking off?
Another PIA to deal with.... "
It's not flaking off, it's melting off! it gets so hot after sitting in the sun all day I can hardly touch the darn thing. A serious case of "form over function"
#892 of 1414 took the rx8 in for an oil change yesterday...
Jun 25, 2005 (7:47 am)
we're at 3K miles and, of course, no problems yet, but everything looks good. I did talk to my tech about some of the problems that I see posted here and he seems to have a pretty good understanding of the rotary. Thought I'd post some of his comments here for others:
1. Asked about the frequency of 8's coming back in with major engine problems. He said they're not getting a lot with real issues, but most of what they see is "driver induced." they have had one converter problem that he felt would have happened regardless of how the car was driven. It was replaced.
2. Asked about the autos. He said they will run fine as long as you pop it over into the "shifting mode" (sorry, I have no idea what mazda calls their auto tranny) and blow the crap out of the engine. Do that as often as you can.
3. He asked me about winter driving. I told him I would probably be putting him away for the salty, snowy roads. He advised me to start it every other day, if not every day, and let it warm up nicely before shutdown. He said even though the car is not being driven, the electronics still pull on the battery and it needs to be charged. He even suggested that I try to get it out and drive it as much as possible.
4. Here's an interesting one I hadn't seen posted here (forgive me if I overlooked someone's knowledgeable post). He said that a big contributor to the flooding issue (aside from the shutdown before warm-up) is letting the battery run down for a 2-3 day period. He said when it doesn't crank good and start quickly, it is more likely to flood. He strongly suggested starting the car EVERY day and actually driving it as much as possible. Even weekend drivers need to be starting the car as much as possible.
And, I have to say, I've been lucky to find a dealer that is knowledgeable about the rotary (even the sales guys are somewhat fanatics about it) and they fix issues when they arise. Hope this helps!!
#893 of 1414 Re: took the rx8 in for an oil change yesterday... [lhess]
Jun 27, 2005 (11:26 am)
he said anything about the rough idle issue?.Older messages said that this was a problem caused by "bad" spark plug wires.My mechanic told me that the car(in idle mode) fix the "air to fuel ratio".....
#894 of 1414 Re: took the rx8 in for an oil change yesterday... [rx8world]
Jun 27, 2005 (2:14 pm)
The rough idle is caused mainly by two factors:
1. The injectors are too large to properly control idle mixture, so the computer is constantly messing with the idle mixture, trying to get it right - it can't so you get a rough idle. Not much you can do about that. You can actually hear it work, constantly trying to correct the idle mixture.
2. At idle the engine is turning at 750 RPM. At that low speed the apex seals don't work very well - these are the combustion chamber seals at the edges of the rotor. Because they don't seal very well, the chamber pressure varies a bit and you get some blowby into adjacent chambers which affects the mixture and its' burning characteristics. This varies with time, so the combination of the two effects means the mixture is not well controlled and you get an inconsistant burn from chamber to chamber, resulting in a rough idle.
The ignition wires or spark plugs can affect the idle, but they have to be really bad. Neither are working very hard at idle as the combustion pressure is very low - bad plugs show up mostly under hard accelleration when the combustion pressure is high - a fouled or worn plug will not fire under high pressure.
Raise the idle to 1500 RPM or so and the apex seals will begin to work much better. You will get a very nice steady idle - but it will reduce the already low mileage even further. Try it when sitting in the car - use the accellerator pedal to raise the idle and see how much it improves vs RPM. I recommend living with the poor idle, because it causes less complaints than poorer mileage would. My guess is that was also Mazda's compromise reasoning.