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.
Resources for the Repair and Maintenance of your 2003 Mazda B2300
2003 Mazda B2300
2003 Mazda B2300 Problems
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.
Rough Running Idle, 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, 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.
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 Check Engine Light may come on with a trouble code for the Cam Position Sensor (CMP), P0340. This can be caused by the negative battery cable being too close to the sensor. The cable should be repositioned, clear the trouble code, and verify that the cable is causing the problem.
2003 Mazda B2300 Recalls (Recent)
Summary: MAZDA IS RECALLING MODEL YEAR 1995 THROUGH 1997 AND MODEL YEAR 2001 THROUGH 2003 TRUCKS EQUIPPED WITH TEXAS INSTRUMENTS SPEED CONTROL DEACTIVATION SWITCH (SCDS) AND/OR ANTI-LOCK BRAKE SYSTEM (ABS) AND MANUFACTURED ON OR BEFORE DECEMBER 5, 2002. A COMPONENT OF THE CRUISE CONTROL DEACTIVATION SWITCH MAY DETERIORATE OVER TIME AND DEVELOP A LEAK. THIS OCCURRENCE COULD CAUSE THE SWITCH TO OVERHEAT, SMOKE OR BURN WHICH COULD RESULT IN AN UNDER HOOD FIRE.Learn more »
2003 Mazda B2300 Questions and Answers
Engine misses through all five speeds, idles beautiful, runs good wide open.
From time to time I see little light brown spots in my oil. The engine is not overheating and there is no oil in the radiator resevior. Could the problem be something besides a head gasket leaking?
can u use the mirrors off a b3000 and install on a b2300?
REMOVING TRANSMISSON AND REPLACING IT
2003 Mazda B2300 Reviews
im having trouble diagnosing a problem, the engine at idle roughs real rough sumtimes backfires, i sprayed the intake and it had a air leak so i replaced the gaskets but it is still doing the same. check engine light is on for miss fire i replaced plugs, my question is has anyone with this type of vehicle have the same type problem? i am asking before i do more expenvise diagnosis procedures any help?
I've owned several Ford Rangers and was looking for a 4 cyl 5 speed. Found it to be a Mazda b2300 and bought it. Having trouble with the cruise control working, checked fuse and brake switch. Any suggestions?
Very reliable.. However, there is a constant rattling noise as if a shock absorber is going out. I can not determine where exactly the sound is coming from. Also, first gear disengages/pops out sometimes when releasing clutch.