The timing belt tensioner pulley may make a squealing noise from the timing cover area on cold startup. An updated tensioner with a thicker mounting bracket to eliminate vibration may be needed to solve the problem.
Resources for the Repair and Maintenance of your 2003 Mazda Protege
2003 Mazda Protege
2003 Mazda Protege Problems
Misfires under load (acceleration) can be caused by leaky spark plug boots. When a spark plug boot leaks, it allows the spark to arc, or jump, to the cylinder head. New spark plug wires will be needed.
A loose or corroded ground terminal on the driver's side of the cylinder head can cause a rough idle, misfires, and there may be trouble codes. Restore the ground to the cylinder head.
An electrically shorted air flow sensor can cause a crank-no start condition. Diagnosis may show that ignition spark is normal, and there are no trouble codes stored.
2003 Mazda Protege Questions and Answers
My car has 110,000 mi.and I have replaced the radiator cap and had the system flushed and filled, also replaced thermostat, and overflow resovoir tank--and it still pumps coolant out the overflow a...
The car suddenly started running hot without prior warning, I have to stop to let it cool down for some time before I can drive it again. I can't drive the car over 10-15 minutes before it sta...
I will be driving along and the car will be running fine. When I have to drive the car around 40-45mph the engine starts to hesitate almost to the point of stalling. I tap on the gas pedal and it s...
I replaced my fan belt last year and have recently been hearing that screeching noise when I first start my car. The fan belt is in fine working order so I would like an estimate on what the repai...
I just bought a 2003 Mazda Protege with 140,000 miles. While driving it home the car started jerking a bit and the check engine light came on. I stopped for a bit and started driving again with no ...
2003 Mazda Protege Reviews
This is my second Madza Protege. I liked the first one so much that I got the second in 2003. I wanted one with a sun roof. The two things I am not happy with is the placement of the door lock as it interfers with the door opener (drivers side). The second is that there is not a smooth transition when down shifting from 5(overdrive) down to fourth. I often ground gears slipping toward reverse at 40 to 50 mph.
Aside from those it has been a great vehicle and I would look at it again next time around.
Great car... bought it with 14,000 miles on it, now have 190,000 miles. Used it for daily two hour commute (each way) for five years. Did have to replace alternator twice. Gave it to my son to use at college and got it back from him a year later. Fun to drive. Only con, a bit noisy on the road.
Been a great little car with No big repairs yet at 110000 miles
Fantastic, trouble free car. I bought it used in 2005 & have had no problems. I just sold my 1990 Protege a few months ago with 109,000 trouble free miles on it.
This is my wife's daily driver to haul the kids around. We bought it new in 2003 and now has 85000 miles on it. No major problems. One recall for the manifold that was done. Great on gas!