2004 Mazda RX-8 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2004 Mazda RX-8
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2004 Mazda RX-8 ProblemsHesitation Caused by Sticking Secondary Shutter Valve
Hesitation and/or a lack of power can be caused by the secondary shutter valve (SSV) in the intake manifold becoming stuck open due to carbon build up around the SSV shaft. This may occur with no Check Engine light illumination but eventually the light will illuminate with code P2070 (Secondary Shutter Valve [SSV] stuck open). The cleaning procedure described under the service bulletin is a long process and it is recommended to install the updated SSV actuator and gaskets. The SSV is activated at higher RPM and the carbon accumulation can happen when it opens infrequently. The effects RX-8's built before April 18, 2007.
Mazda has issued Bulletin No. 01-010/10 for the above issue:
Some vehicles may experience the coolant level warning light comes on even though the correct amount of coolant is in the coolant reserve tank and radiator. The coolant level sensor float in the coolant reserve tank (A) is deteriorated and absorbs coolant. The float gets heavy, and sinks, causing the the coolant level warning light comes on. As a mass-production change, the design of the float has been modified.
Replace the necessary parts according to this VIN range.
• For VINs JM1FE****** 100000 to 157837 (built before July 1, 2005), replace the tank with sensor.
• For VINs JM1FE****** 157838 to 403405 (built on or after July 1, 2005), replace the tank only.
If the climate control's heat/cold knob is not adjusting to the desired temperature, a new climate control unit may be needed.
2004 Mazda RX-8 QuestionsCar dies at idle after reaching operating temperature (1 answer)
Changed spark plugs and wires, changed coolant temp sensor, changed fuel pump already. After it dies at idle it doesn't want to start again right away. Then once started again it sits at about 750 rpm revs up to about 1100 rpm and back down again. This is without AC running.
Was driving fine RPM dropped very low no matter how much pressure I pressed on gas car wanted to turn off at stops then catalytic converter and muffler got cherry red hot.
2004 Mazda RX-8 RecallsPassenger Frontal Air Bag Inflator Ruptures On Deployment
The passenger frontal air bag inflator may rupture on deployment, causing metal fragments to come through the air bag and injure occupants. Dealers will replace the passenger frontal air bag inflator free of charge to resolve the concern.
The frontal passenger air bag inflator may rupture upon air bag deployment, spraying debris inside the passenger compartment. Dealers will replace the passenger frontal air bag free of charge to resolve the concern.
In a crash that deploys the driver's front air bag, the inflator of the air bag can rupture, causing metal debris to strike vehicle occupants. Dealers will replace the front driver's air bag inflator free of charge to correct the concern.