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Repair Guide for the 2004-2008 Mazda RX-8. A Japanese sports car built from 2003 until 2008.

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turns over but won't start..

Alright fellas..Texas women has issues..lots of them but car issues is why I am on here today.i have a 2004 mazda rx8 ..it has been smelling warm when I drive it..but all levels are good nothings leaking or low. Well as I was on the road it felt as if it would pull back some and I would here a misfire..it stalled 3 times on me going down the road it did start back up but ran terrible only made it 2 more blocks and it quit..it turns over but won't start..changed spark plugs..put the reader on it wouldn't show anything..my car is a 2004 mazda rx8..95 thousand miles.i just bought it..private person maybe this is why they sold it to a women..any ideas? Besides junk yard lol…I really love my little car could the Ecm be out?

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Turning over means the starter is good. Turn the key to ON without starting it, and should hear a bit of noise from the fuel pump turning on then off. If not, could be the engine isn’t getting any fuel. To test further, disconnect a fuel line, and have someone turn the key to On momentarily and see if fuel spurts out. If not, then it’s likely the fuel pump, which is in the fuel tank…

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First it could be flooded, take out the spark plugs, remove the fuel pump relay and act as if you were going to turn it on, clean the spark plugs and put it in, and put in the fuel pump relay, check the coils. The spark plugs could not send a spark, since they do not ignite the mixture of gasoline and air, it could be a second alternative.

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Sounds like A cam-position sensors or crank position sensors . You do have gas Wright ?

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hernandezsean240 it's a rotary engine. No cam, no crankshaft, no valves, no timing gears= no sensors for that. Check on here for a better explanation

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Tricia Tumele could be a fuel or spark issue. You changed the spark plugs but need to check the coils as well. Remember that the 04/04 RX 8 had a TPB about using different plugs then listed in the manual. Make sure your replacement reflects that. It also is having chronic issues with flooding which can get the catalytic converter to clog and fail. Have that checked too. As for possible fuel issues you need to check the relay, the fuses, and the pump itself. This is a great car but needs a lot of personal attention. Here is the troubleshooting guide from the manual which may help out. It’s a ‘05 which works for the ‘04 as well. 2005 RX8 EngineProblem

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Clutch sensor it's your problem

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Primero podría estar inundado, sácale los spark plugs, quita el relay de la bomba de gasolina y haz como si fuera a prenderlo, limpia los spark plugs y se lo pones, y pones el relay de la bomba de la gasolina, verifica los coil de los spark plugs, pudiera no mandar chispa, pues no hace ignición a la mezcla de gasolina y aire, podría ser dos alternativas

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Aside from what has been talked about above, you might want to consider a clogged fuel filter. If it hasn't been changed, and is relatively easy to access, it's a good maintenance item to replace anyway at 95K miles, IMO. A fuel starved engine will run lean, and therefore will run hotter, so you might smell that this is happening, as you sort of described. It will also hiccup a bit.

If it's spark related, then it could very well be the CKP, aka the crank position sensor. That said, these are usually a real bear to get to for the unseasoned mechanic in particular. With many cars easiest access to potentially failed part can be a prime determinant in how one goes about fixing things. Good luck with your Mazda.

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This car is a rotary, which means you should ignore advice from anyone who doesn’t acknowledge that first.

The RX-8 has an annoying habit of flooding if it is started and shut down before warming up. My RX-8 is sitting in my driveway with this exact problem right now. I suggest investing in a battery charger, as it is a good thing to have with this car. Search YouTube for “RX-8 de flood procedure” there are probably a dozen videos on the subject

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