2003 Mazda B4000 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2003 Mazda B4000
2003 Mazda B4000 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.
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.
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.
2003 Mazda B4000 Questions
checked alternator and wheel bearings and changed differenal fluid.
where is the pcv hose on my 2003 mazda b4000
what is the schedule for changing the timing chain?
2003 Mazda B4000 Recalls
2003 Mazda B4000 Reviews
I bought this truck new in 2003 and it now has 126,500 miles. It has been a fantastic vehicle. Super dependable and has never let me down. Other than regular maintenence, I haven't had to do a thing to it. Hands down, this has been the best new vehicle I have ever purchased.
had too get ft axle hub bearings replaced 2 times said they were not warranted cost me 800;00 dollars I had 2 eat after driving a couple of hundred miles steering wheel gets hot on left hand side and burned some dash board lights out other than that been a good truck bought new in 2003 have a 127000 miles on it now