20 Most Recent 2004 Mazda MPV - Page 7 Questions & Answers

I had this happen to me today. As I slide it, it catches and will not slide back. Grr

If changing the thermostat didn't work, have the heater control valve checked, it may not be opening all the way to let the coolant circulate thru the heater core fully.

2004 Mazda 6 3.0 liter DOHC V-6 24 Valve VVTHope this helps (remember to rate and comment this free answer).

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have all the spark plugs been replaced when you have 1 bad spark plug you should replace them all same thing goes with the plug wire you can have the coil tested at the parts store i would replace the spark plugs and wires then go from there.

Check spark plug, spark plug wire, and ignition coil for that particular cylinder.