Table 1 shows twelve common engine and engine cooling related problems of the 2003 Mazda Protege. The number one most common problem is related to the manifold/header/muffler/tail pipe (eight problems). The second most common problem is related to the check engine light on (three problems).
The contact owns a 2003 Mazda Protege. The contact stated that while driving 45 mph, the check engine warning light illuminated. The vehicle was taken to an independent mechanic for diagnosis where it was stated that the intake manifold needed to be replaced. Read details...
Rough idle causing to stall while driving, check engine light on for cylinder misfire, found cylinder 4 with a bent spark plug with the gap closed. Replaced all 4 plugs car ran fine for a few months only to have the same issue cylinder misfire with cylinder 4 with another bent plug gap closed. Read details...
Car stalled at red light, there was a loud knocking sound coming from the engine. After stalling t more times the car ran for another 3 minutes to ge me home for the evening. I then to it to my local Mazda service center. Read details...