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Countrybumpkin · 11-01-2015, 10:36 AM

My daughters 1999 Alero started acting funny a couple of days ago, and I cannot figure it out. Started when, after driving a few miles at 55 mph, would sputter, shake, and not go over 30 mph...she'd hit the brakes and would be fine. Then it went to sputtering, dying, and restarting, before doing it again a few miles later. I drove it yesterday, and after a few miles sputtered, died, took a while to restart, went 500 feet, and did it all over again. Finally got it close to home, it fired back up, and ran fine for a mile, until I got home. Towed it to a friends shop, he idled it for 3 hours waiting for it to do something, but it ran fine. I'm leaning towards the fuel pump going bad, but he said it could also be the ICM going out. I would think if it was the ICM it would act up on idle more so than the fuel pump. Either way my daughter is scared to drive it, and I am at a loss...any ideas out there?

11-01-2015, 10:36 AM	#1
Countrybumpkin GX Member Join Date: Oct 2015 Location: NW Ohio Posts: 1	Strange problem with 3400... My daughters 1999 Alero started acting funny a couple of days ago, and I cannot figure it out. Started when, after driving a few miles at 55 mph, would sputter, shake, and not go over 30 mph...she'd hit the brakes and would be fine. Then it went to sputtering, dying, and restarting, before doing it again a few miles later. I drove it yesterday, and after a few miles sputtered, died, took a while to restart, went 500 feet, and did it all over again. Finally got it close to home, it fired back up, and ran fine for a mile, until I got home. Towed it to a friends shop, he idled it for 3 hours waiting for it to do something, but it ran fine. I'm leaning towards the fuel pump going bad, but he said it could also be the ICM going out. I would think if it was the ICM it would act up on idle more so than the fuel pump. Either way my daughter is scared to drive it, and I am at a loss...any ideas out there?