2004 Mazda B4000 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2004 Mazda B4000
2004 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.
2004 Mazda B4000 Questions
runs well when traveling
Going down the highway truck runs steady, when i come to a stop sign, engine starts to overheat and engine runs rough and wants to die. codes are P0304,P0455 and sometimes P0316. Changed 4 of six spark plugs, can smell antifreeze.
I drove in wet weather. overnight it froze. the truck wants to move and seems to go in gear. it will not roll in nutral or or in any gear for that matter. I think it may be ice build up or is it the clutch?
2004 Mazda B4000 Reviews
Seats can be uncomfortable for drives longer than 30-40 minutes. I have the 4x4 and suspension is loose, nauseating for passengers - though I have no problems with it. The display under the rear view mirror went out, but all in all, a very good and reliable truck. A good beater that doesn't quit!
Rear brake do not last,I was told this is a constant problem with this truck B4000.