I have a 2001 Olds Alero with a 2.4L 4 cyl. that misses at around 50 mph then runs ok at higher speeds. Sometimes it will idle rough while stopped but not every time I stop.

Also, the battery light will come on and ding every now and then even though I have replaced the battery and the alternator.

Does anyone have any suggestions?

PLEASE DESCRIBE THE MISS. ..

It just goes flat and acts like it is going to die, and now I have noticed it will idle rough and act like it will die when stopped but not every time I stop.

I WOULD SUGGEST A DIAGNOSTIC CHECK AT A MECHANIC OF YOUR CHOICE OR A PARTS STORE THAT WILL GIVE YOU ONE FREE. GOTTA BE SOME KIND OF CODE COMING UP. IF YOU HOLD A LITTLE THROTTLE TO THE ENGINE WILL IT RUN SMOOTHLY???

Had a full tune up lately?


C.J.

Getting the code read is what I was going to do next. I have already changed the alternator, the battery, the drive belt, the fuel filter and the spark plugs.

Thank you for your answer, I'll post what I find out so we all can learn from this.

dragon-guitar

I almost forgot to say, yes I can throttle through the rough idle and the high speed missing.

dragon-guitar