Mazda B2500 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your Mazda B2500
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Mazda B2500 ProblemsRough Running Idle, Erratic Speedometer Operation, ABS Light Illuminated, Check Engine Light, and Automatic Transmission Shifting Problems
Water intrusion into a connector (X309) located under the cab, beneath the driver's seat, can cause a rough idle, erratic speedometer operation, ABS Light and Check Engine Light illumination, and automatic transmission shifting problems. If needed, connector repair parts are available from Mazda dealers, and possibly some Ford dealers.
The engine may fail to start due to an electrically shorted sensor. Some of the sensors may internally short and not blow any fuses. A technician may find no spark and no operation of the fuel injectors in the diagnosis. One way a technician may isolate the defective sensor is by disconnecting sensors one by one to see if the engine starts.
A high idle speed can be caused by a poor connection at the Throttle Position Sensor (TPS). Connector replacement kits are available from Mazda dealers and possibly some Ford dealers.
Mazda B2500 QuestionsDoes my vehicle have a cabin air flow filter? (1 answer)
The a/c is cold but very little air is flowing from the vents.
Engine light throwing a code for lean. Replaced the fuel pump 6 months ago, and a coil (due to misfire) 2 months ago. Have the TPS, but haven't installed it. Loud rattle on the exhaust. Think that's just a problem with looseness.