2004 Mazda B2300 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2004 Mazda B2300
2004 Mazda B2300 Problems
If the engine cranks but does not start, it may be caused by a tripped inertia switch. Switch the key to "ON" and the fuel pump should be heard running for a second or two. Listen at the gas filler if necessary. The inertia switch is located on the firewall and can be tripped when the parking brake is set too hard and then released. The inertia switch should be reset, and will click when it is reset.
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. In some cases, carefully cleaning the sensor element will fix the problem, but replacement may be required.
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.
2004 Mazda B2300 Questions
I changed out the alternator then shortly after the 2nd gear in the transmission became sluggish. Now I have to let off the accelator to get it to shift into second gear. Any ideas.
When first excellerating engine feels like it is missing (not very noticable though). When speed is about 40mph the engine produces a very loud "roar" sound- no knocking or pings, just roar. The roaring sound will stop when speed is reduced but begin again as speed in increased. There i...
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