- #21 of 50
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Re: 04 Rx-8 at stalls at random [vkat]
by boof1
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Oct 16, 2008 (11:21 am)
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Replying to: vkat (Aug 12, 2008 7:35 pm)
I purchased my 04 RX8 in July 04 with 1,500 miles. I now have 189,000 miles. I was out of warranty within one year of owning the car. I have had the same starting issues like everyone else from day one. Back then Mazda never explained why the car wouldn't start, they would just fix it. Mazda would fix the stalling issues by changing out the plugs, starter and battery. As an Rx8 owner for 4 years now I obviously know how to get the car started in the event that my wife forgets and moves the car in the driveway. (How could she forget?) The big problem I have been having since about 120,000 miles is the stalling while driving. Regularly I drive without stopping at about 80 mph for 170 miles early in the morning when it is not hot out. Typically as soon as I get off at the ramp and arrive at the first red light, the car will stall out as I try to pull away when it turns green. If it doesn't stall it will at least bog as I get it up to speed. Mazda doesn't have a reasonable answer. The dealership said that the engine needs to be taken apart and cleaned because of carbon buildup in the engine. No guarantee though. Carbon buildup would be typical of a little old lady who drives only two and from the bank at low speeds. How could carbon be built up in a car that is going 80 mph for two straight hours? I spoke to a representative higher up than the dealership. He said He "called around" and that no one from Mazda had heard of an 04 RX8 having more than 85,000 miles. He said that they have no history with such a high mileage car to even know what the problem could be, if it's not carbon buildup. I have asked numerous mechanics. They all look at me like I'm crazy, or make some wacky diagnosis, that the problem is a throttle position sensor. Does anyone have an alternative answer? Other issues you low mileage guys can expect: The glue in the sun visors melting and coming apart. Tail lenses filling up with water. Driver/pasenger door locks freezing up. Major oil seal leaks front and rear. Gps toggle switches (I'm on my 3rd one). I realize this is a high mileage car, but it still is only 4 years old.
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- #22 of 50
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Re: 04 Rx-8 at stalls at random [boof1]
by fedlawman
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Oct 16, 2008 (4:28 pm)
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Replying to: boof1 (Oct 16, 2008 11:21 am)
Maybe the O2 sensor(s)? With that many miles, that's my first thought...
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- #23 of 50
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Re: 04 Rx-8 at stalls at random [fedlawman]
by boof1
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Oct 19, 2008 (10:02 am)
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Replying to: fedlawman (Oct 16, 2008 4:28 pm)
Yea O2 sensors were also changed, twice if I remember correctly. It's just insane that Mazda's only answer when all the changes do not work, is to change out the engine. That's fine if your under warranty, but who is going to pay for an engine swap, when there should be a reasonable fix. Crazy.
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- #24 of 50
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Re: RX8 Will Not Start [uhohboy]
by freddyrx8
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Oct 25, 2008 (7:14 pm)
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Replying to: uhohboy (Dec 29, 2007 1:51 pm)
Try changing the air filter. Mazda uses platinum spark plugs. replace them with (NGK laser iridium spark plugs) this should solve your problem. if the car still don't start check the fuel pump fuse! Open the hood to the right of the air filter is the fuse box there are two blue fuses on the bottom it's the one to the right.
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- #25 of 50
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by zoomzoomdlr
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Nov 03, 2008 (4:44 pm)
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I've sold several over the years, and it seems to be that the harder they're run, the btter the rotary motor does. They are certainly very sensitive, anyone remember MG, triumph, etc?? They need to be warmed fully when run, good gas is a must, and the rotary is a high RPM motor by design, the harder I've run mine, the better they've been. And I"m with the prior post, 3000+ RPM seems to help too
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- #26 of 50
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Re: 04 Rx-8 at stalls at random [boof1]
by freddyrx8
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Dec 22, 2008 (9:37 pm)
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Replying to: boof1 (Oct 16, 2008 11:21 am)
You might have to replace the IAC motor ( idle air control = DEALER ITEM) that's what keeps the idle steady when your stopped. After about 60.000 miles it starts to fail, also replace the coils and spark plugs. All that might cost you about $1200 at the dealer!
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- #27 of 50
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Drive It Like You Stole It For 200K Miles Plus
by ksmigel
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Dec 23, 2008 (9:16 am)
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Replying to: boof1 (Oct 16, 2008 11:21 am)
If you go over to the rx-8 owners club forums, you'll see that many people have 100k, 150k and even 200k on their rx-8s (that's a lot of miles for three and four yer old cars), with few or no problems.
The common element: They all bought manuals, and drive them hard and fast, the way the rotary was meant to be utilized.
The best thing you can do to a rotary is redline it. The worst thing you can do is lug it. If you're spending most of your time above 4000 RPM, your 8 will thank you.
Make sure you redline it a couple times a day.
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- #28 of 50
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used 2004 Mazda RX-8 will stall when the TCS/DSC & engine light come on
by johnrvw
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Mar 08, 2009 (1:32 pm)
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I have just purchased a used 2004 Mazda RX-8 with 88,000 miles. I am having an issue where, while driving the car the check engine light and the TCS/DSC Indicator light will come on. When it does the the car will stall - mind you this is while driving down the freeway doing 60+.
Can you help me trouble shoot this?
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- #29 of 50
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Re: used 2004 Mazda RX-8 will stall when the TCS/DSC & engine light come on [johnrvw]
by johnrvw
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Mar 09, 2009 (3:45 pm)
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Replying to: johnrvw (Mar 08, 2009 1:32 pm)
Drove it to my nearest Mazda dealer to have checked.
Throttle Control valve and gasket needs to be replaced. ($436 just for the parts)
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- #30 of 50
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Re: 04 Rx-8 at stalls at random [boof1]
by jjerryva20
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May 29, 2009 (3:25 pm)
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Replying to: boof1 (Oct 16, 2008 11:21 am)
Hey,
The same thing happen to my mazda rx-8.I have only 27,000 mile.
Like when I came to a stop light the car tendes to bog and then pick up speed and then it stops.i took it the the dealership and the clean the carbon out and it will run good for awhile and start doing it again ..In a week I will take it back to the dealer and get it check out again its a never ending story.the is a problem in the motor and someting is going on with it
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