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the check engine light is blinking and my 03 Nissan exterra is running rough
It's running too rich.
transfer pump psi too low
Engine miss/running rough. Engine back firing / poping
have vehicle scanned to determine the problem
The engine is running rough. Could be in need of a tune up.
To much oil in an engine can cause it to flood which will then lead to blowing seals. But it should not effect how the car idles.
Rough running engine-yes, since timing may be off but that's easy to check. Deiseling is usually fuel delivery or alternator not shutting down, possibly a coil problem.
If your check engine light is blinking that means an ignition misfire has been detected
a mass of balanced steel bolted onto the front end of the crank shaft for a smoother running engine
Check engine light, rough running engine, no start at all.
There could be many reasons as to why this car is running rough. The engine may be overheated, the mount may be destroyed, it may not be getting enough fuel, or there could be a lack of oil.