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Mazda RX-8 Problems and Solutions



  • cheezeboycheezeboy Posts: 218
    to answer both of you - nope. No vibrations or rumbling. The engine/tranny has been trouble free for 32K issues have been minor: need a brake job and I wish they could get a glue to keep the door sill plate down!

    I would imagine that if the car didn't vibrate/rumble when you bought it and now it does, something is amiss. PathStar might be able to provide more insight to as what might be wrong - he is the mightiest of RX mechs!!......

    I hope that your issues get resolved - the RX8 is a wonderful car to drive!
  • rx8crazerx8craze Posts: 10
    Yes, I do also have some "Click" noises when going over 5000 rpm
    maybe it was already there..just didnt notice it till i started to drive with
    windows down. Also..sometime..i hear this tumbling and cluncking noise from
    bottom of the engine....sometimes i also hear these puttering noise also seems to be comming from bottom of the engine which only happens occasionally, not always...sounds almost like the cat conv is leaking..but then if that was the case would hear this noise all the time.
    I really dont feel like i have a new car when i hear all these noises...once i sytarted my RX8..forgot something @ the office and got out while the car was running..while walking way from the car..i would hear these noises comming from my baby and it just sounded like a 10 year old POS...
    and for vibrations..yes my car does vibrate...funny thing does not vibrate as much as before. when i first purchased the car, it ran smooth, even @ idle
    after about 800 - 1200 miles or so (do not remeber exactly when it started) my girl firend pointed it out for me..asked "why is this car shaking so much"
    my reply was "because it is a sports car".....acting like it is normal yet knowing that this was something of a new problem (my g/f wanted me to stick with a reliable Honda accord...v6 with 6speed....screw that!)
    well, as i was saying before, it is very warm here in GA now..and my car does not vibrate as much as it use to...the shifter knob still shakes..but not the car.
    all these things normal??...pathstar should have all the answers
  • rx8crazerx8craze Posts: 10 i was just in the garage smoking...and heard a loud Ping noise from my has been parked there for almost 7 hours now...what the hell!?
  • While driving over rough ground, I hear the same clanging, slightly rolling noise from the bottom of the car that rx8craze talks about. Nothing is hanging out from under the car. I would really appreciate any suggestions.
  • sam13sam13 Posts: 1
    cd s I burned started to skip ,now they all do ,dealed ordered a new one ,time will tell if problem will go away
  • That sound like the pre-detonation that my engine was doing. Search a few pages back and you will see. If it is, then they will probably have to replace the engine.

  • bethpaddybethpaddy Posts: 1
    In response to your problem with your RX8 I too had a problem at 17,000 with no power and a screeching noise coming from the engine when it was hot and the air was on. I am currently waiting for a new engine to arrive at the Jim Click Mazda dealer in Tucson, AZ. There have been three vehicles with this problem just at this Mazda site. I was told that there was a computer programming issue which was taken care of by an engineer that came in from Japan. Still the problem wasn't rectified. The service manager has told me that the oil regulator pump that directs the oil to all parts of the engine has a major engineering problem. Supposedly this has been taken care of in the new engine. I was also told there are many cars in Phoenix with the same problem.

    Unlike your lack of response by the many dealers you have gone to, I have been very lucky in the way that I have been treated throughout this whole situation. I have been without my car for almost a month, but at least hopefully the car will run appropriately in the end. By the way, Mazda is very aware of this problem. Maybe you can contact them directly.
  • lhesslhess Posts: 379
    are these detonation problems happening with autos and manuals or does it tend to go one way or the other?

    Also, some early 2004's seem to have problems that other 04's are not. Did Mazda make any big changes mid year? Like if you have a second half 04, you have some upgrades...?
  • bruce12bruce12 Posts: 1
    Just wanted to join in. I have my concerns after reading this forum and the problem with my RX 8. I have AT because the driving I do now is a pain (to me anyway) with manual. I've had manuals up until I purchased the 8. I've never used the paddles. My car at around 8K started to loss power and idle would drop when at a stop. RMP's would fall to 500 and car would stall. It was then very difficult to re-start. While speeding up or at cruising speed, they was no drop of power. Took car in last week and the dealership has treated me very well. They said that they found a compression problem and couldn't figure out why. They got help from a national Mazda tech. Today I've been told that I have to have a new engine for the car. Is there any reason to think that the problem with my current engine will be solved with a new one? :sick:
  • lhesslhess Posts: 379
    I certainly don't know much about this and my 8 is not giving me problems, but the explanation given there does seem valid. May be something to ask your dealer about. Nice to hear that your dealer is treating you well. It's bad enough to have serious car problems (or even small ones) and then to feel that your dealer doesn't care. Good luck and keep everyone updated as to what solves your problems - it helps all of us!!
  • liquid1liquid1 Posts: 4
    I was considering on purchasing a new RX. I need a reliable car, one that doesn't have constant problems. Would you guys consider this car as being unreliable?
  • cheezeboycheezeboy Posts: 218
    drove my AT - 5700 miles, 17 states in 21 days.........never had a problem......excellent car.

    I have 32K as of today. Only thing I need is new tires!....
  • secondcitysecondcity Posts: 28
    Any advice on repairing scratches on the wheels? My wife scratched my front right passenger side rim, along the outer edge where it almost meets the rubber, while parking along the side of a curb. Its not too noticeable-but noticeable enough to aggravate me. Any advice (besides not letting her drive my car)?
  • lhesslhess Posts: 379
    i scratched mine myself on a curb and it makes me sick every time I wash the car.
  • ukjimukjim Posts: 63
    ........I had the dealer install a modification to the dipstick to prevent "cream" build up at the top. When pulled out, the stick had a white plastic or teflon tube pushed hard onto the "barbed' portion at the top of the stick. The tube was so long that only about 3/4" of the stick was exposed. I checked the oil over the weekend and now the white tube has disappeared! I can only assume that it has slipped off the top of the dipstick and is now sitting in the bottom of the dipstick tube. Anyone else seen this and is there any reason to be concerned?

    On other issues, my 6 speed now has 9K miles and no problems with loss of power or anything else for that matter, it runs great. The cooling fan does run for a long time after shut down tho, at least 10 minutes!

    I too have scratched a rear wheel, :cry: the low profile tires give you no margin for error, just have to be careful.
  • flatpickflatpick Posts: 43
    ATM Machine did me in....some nice gouges front passenger rim trying to get close enough ATM machine....yeah I got close enough...careful people...I didn't hear much of any noise as I ground 1/2 in bites in my rims! :cry: :mad: :cry:
  • lhesslhess Posts: 379
    for a co-worker. I don't go near McD's for me personally, but it was pouring the rain and I tried to get under that little bitty canopy they have over the order screen and, that's all folks! Mine was at less than 2500 miles. I have a moment of silence every time I wash that particular wheel!!!!!!!!!!!!!!!!
  • pathstar1pathstar1 Posts: 1,015
    The wheels are "painted" with a very thick plastic paint. You could use touch up paint to cover up small scratches. We stripped a set of the stock wheels and had them powder coated to match the car. Had to use an "aircraft" stripper solution that is "access controlled", meaning they don't just sell it to anybody.
  • lhesslhess Posts: 379
    and they had some scrapes as well. the seller stated that he could repair them for $60 a wheel before he shipped. I wondered how he would "fix" them, but I didn't realize they were painted. Thanks for the info.
  • calimancaliman Posts: 1
    This is the second time in 4 months and my RX-8 won't start.

    When the car is turned off before the engine has reached certain temperature, you are risking engine choke...and the car will NOT start. No crankin the engine in the world..or pumpin the gas paddle will make it work!
    First time the problem happened Mazda dealership told me they need to update the computer chip, and the problem should go away.
    Today I called to report the same starting problem..and the answer is..well you probably guessed it! They have one more computer update which should make the problem go away!
    On the bright side: I am glad I leased my RX instead of finance, and I pay only $ 250.00 a month. Once the lease is up this car is going back to Mazda! nice ride..but too much headache!
  • pathstar1pathstar1 Posts: 1,015
    I'll post this once again.

    This is a "flooding" problem, and has been with the rotary from the beginning. It's main cause is at very low rpm (cranking speed for example) the rotary has very poor sealing of the combustion chambers. This is also why it idles so poorly. It idles great above 1200 rpm or so.

    If you add too much fuel it will soak the spark plugs, partially shorting them out. When cold (below operating temp. - probably below about 60 deg. C coolant temp for reference), the engine is in "choke mode" - injecting extra fuel for a "cold" engine. Normally, any extra fuel will be ejected by normal pumping action of the engine, but at low rpm the rotary is poor at this pumping action, so the fuel can build up and short the plugs. Then you're really in trouble. The fuel can't leak "down" into the crankcase in a rotary due to its' design - there isn't a path into the equivalent of the crankcase in a rotary. So the fuel just builds up.

    The solution Mazda used in 1989 was to give us a way to pump out the fuel without adding more. When you press the accelerator pedal to the floor and hold it there, then crank the engine the injectors will not inject fuel into the engine. The pumping action is still poor and the spark plugs are still partially shorted, so you will have to crank the engine for a while - it will typically take several minutes to clear it out so the plugs can ignite what is left. Crank for 10-15 sec. intervals, with 30 sec. between to allow the starter to cool. DO NOT release the accelerator from the floor during this episode of "unflooding" until it fires.

    The RX-8 added further problems that Mazda hadn't seen before. The program changes you mention included adding a delay in adding the additional fuel until the engine is running. The initial program started "choke mode" instantly when the engine fired - they delayed that and that change helped a lot to reduce the flooding customers experienced.

    To avoid flooding DO NOT TOUCH the accelerator when starting the engine. Make sure you let the engine warm up a bit before you shut it off so it is no longer in "choke mode". Rev. up the engine to around 3-5 thousand rpm, release the accelerator pedal then turn off the key and let the engine coast down - the injectors will stop when you turn off the key and the engine coasting down will pump out any extra fuel.

    I am constantly starting up a cold RX-8 and shutting it off when testing certain electronics we build for the car. I have never (knock on wood) flooded it. I have never flooded (knock on wood) my RX-7. I follow the above. It seems to work for me!
  • rx8worldrx8world Posts: 28
    Hi guys...and girls :) i've been wathing this forum for a long time now and i found it very interesting.I've read all the disgussions about "rough idle" but i want to know something...except of all the known symptoms ,do you hear(when in idle) a strange cranking noise under and outside drivers seat?from the engine perhaps or from the first section of the exhaust???
    I have another point too.In earlier messages there was a disgussion about egine coolant leaking from pin heads from inside the engine.The answer from their dealers was "you will need a new engine or a reconditioned one". Well,i had the same problem but it was caused by electrolysis(i dont know if it is the right word...i am from cyprus and excuse my english :) )....back to the,my mechanic changed both the pin heads and put a different material so i would't have the same prob again.He installed also an earthing kit.My car is very compression power loss no nothing....exept of the rough idle which i had been told that is something normal for rotary engines.Thats all.....any suggestion about that noise would be appreciated. :shades:
  • lhesslhess Posts: 379
    from the area you mentioned but I do hear my brakes occassionally. They have told me on this board that the brakes will make popping or thunking noises as they calibrate themselves. I notice it right as I begin backing up (I have to back out of my parking spot, so I always begin with a back-up). Could that be it? If so, it is normal.

    Is this noise happening when moving or sitting still?
  • rx8worldrx8world Posts: 28's not the brakes...i am familiar with the calibration noise.When the car is stopped and the engine is running(and i am outside the car) i can hear it.This happens exactly when the exhaust pipes make that "pouf pouf" sound.Usually it happens every 5-6 seconds and after the engine is warmed up.I was talking to a friend earlier and he told me that might be the adjustment for the "air to fuel ratio". .....hmmmm :) and oups..i forgot to mention something,here in Cyprus we drive at the left side of the road so....MY drivers side is Yours
    passenger side...
  • 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.
  • lhesslhess Posts: 379
    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!!
  • ukjimukjim Posts: 63
    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.
  • rx8worldrx8world Posts: 28
    Maybe the metals....that sounds logical.Thanks a lot man.Another one idle how many rpm should the engine work?
    I love my 8 very's been a year that i've purchased it and every time i drive it i feel as happy as the first day. :shades:
  • wpavlik2wpavlik2 Posts: 32
    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.
  • flatpickflatpick Posts: 43
    I kept hearing and feeling a vibration in the rear when at idle sometimes....rev it up and it goes 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.
This discussion has been closed.