2003 Mazda Tribute Repair Question
Topics covered: Engine, Random misfire, Compression.
Mileage: No information provided.
Mileage: No information provided.
Asked on March 25, 2010
2003 Mazda Tribute Now what
Engine Performance problem
2003 Mazda Tribute 6 cyl Two Wheel Drive Automatic 85,000 miles
Front cat recently replaced; old one broke up, plugged up exhaust. Ran fine for a week, then ran rough lost power; DTC- "random misfires" Got tune up, several new coils, including cyl 4 and 5.
A week later, "check engine" light on again; it runs fine, but codes say misfires on cyl 4 and 5 and front cat is bad.
Had codes cleared, drove about 200 mi, and same error codes come up again - misfires on 4 and 5, front cat bad. Meantime, it runs great! What's the problem" Could PCM itself be bad?
2003 Mazda Tribute 6 cyl Two Wheel Drive Automatic 85,000 miles
Front cat recently replaced; old one broke up, plugged up exhaust. Ran fine for a week, then ran rough lost power; DTC- "random misfires" Got tune up, several new coils, including cyl 4 and 5.
A week later, "check engine" light on again; it runs fine, but codes say misfires on cyl 4 and 5 and front cat is bad.
Had codes cleared, drove about 200 mi, and same error codes come up again - misfires on 4 and 5, front cat bad. Meantime, it runs great! What's the problem" Could PCM itself be bad?
Asked by BeaniemikeAnswer
Replied on March 25, 2010
Check compression and injector for no.4 and 5
P0300 Random misfires normally point to vacuum leaks and contaminated fuel
