Question about 2004 Mazda RX-8

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My mazda rx8 will not start i can see the belts turning but it just wont fire is it a fuel problem

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  • bigdaddy9671 Dec 04, 2008

    i dont know

  • jason May 11, 2010

    you would need to make sure there is spark before you could say its a fuel problem , because if there is no spark then the fuel would not be ignited, and it is easy to eliminate , then you would check to see if the fuel pump or something else has gone wrong , if there is spark.

  • jason May 11, 2010

    is there spark at the plugs ?


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Its most likely a flooded engine, RX-8s have a bad problem with flooding. The best way to clear it is follow the instructions on the DVD (product update) it can also be found in the owners manual. If you have tried several times to start it with out holding the gas pedal all the way down (holding it down all the way shuts off the fuel pump until you release it) you've probablly flooded the engine pretty bad. If thats the case the way I got mine to start is to pull the spark plugs and the fuse for the fuel pump (so you don't have to hold the gas pedal down) and tried to start it letting the started turn the rotors to push the exsess fuel out. I did this several times, and had to recharge my battery 3 times. Then put the plugs and the fuse back and try to start it holding the gas pedal. If it starts to fire release the gas pedeal and it will chug like its gonna die, DO NOT PRESS THE GAS to try to prevent it from dying, or you will flood your engine again, after a few minutes the chugging will disappeare and alot of white smoke will come out of you exhaust. Doing this burned out my battery but mine was the OEM battery and paying $80 is better then what you'd pay to have a dealership fix it. The only part I damaged was the battery, but you could potentually damage your starter as well.

This problem occurs often in cold weather, and if you make short trips (the shorter the worse). i.e. garage to driveway. If the last time you drove your car was a quick trip I'd bet a flooded engine is you problem.

To prevent it from happening again. Be sure to let you motor warm up to normal temperature, before you shut it off, also you can rev you engine to 4,000 and shut it off when it peaks, this will let the rotors make 1 or 2 more revelations, pushing the extra fuel out, without injecting more fuel.

Posted on Dec 06, 2008

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How many miles on it? if over 20k replace plugs. look into replacing wires too. oem or performance wires. and youre coil packs might be going bad too. take them off and check the back side to see if you have discoloration. all together youre looking to spend about $500. but you could probably get away with just the plugs for now. and if its still under warranty you can get it all done for free by a dealership.

Posted on Dec 05, 2008

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