2002 Mazda B3000 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2002 Mazda B3000
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2002 Mazda B3000 ProblemsRuns Poorly, Possible Check Engine Light
A dirty, or contaminated mass airflow (MAF) sensor can cause the engine to run poorly. There may be a Check Engine Light with trouble codes relating to the MAF sensor, P0102 and/or P0103. In some cases, carefully cleaning the sensor element will fix the problem, but replacement may be required.
Water intrusion into a connector 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.
2002 Mazda B3000 Questionsalternator inspection (1 answer)
Just replaced front left wheel bearings for a previous noise (grinding like) problem... it fixed it for a week (150 miles), now it's making a humming noise... it gets loudest at 40 MPH...
Could it be a cheap after-market brand bearing causing it? made in China, for O'Reilly's Parts...