2003 Impala LS - Engine Stalls Someti...

2003 Impala LS - Engine Stalls Sometimes / Starting

Posted in the Chevrolet Impala Forum


Minneapolis, MN

#1 Jun 19, 2007
I've had the car 5 months and I have had the car stall on me a few times while driving.

Once on the freeway, I had to pull over for an ambulance and as soon as I hit the brakes (somewhat hard) the RPM's dipped and the engine quit. Needless to say the power steering went out as well. A little scary.

The next time was simply going around a corner here in town (maybe 30 mph).

Also just happened to my wife today. She did not have to brake and the engine just stalled. Again going maybe 30-40 mph.

As for starting, if I use the auto-start remote, I have no issues starting the car. But, when I use the manual ignition, I have to sometimes keep trying over and over.

About the only display I see in both cases is the battery light come on.

Anyone else had similar issues? I will definitely bring to the auto parts store for a diagnostics check, but I am a little leery. I had a 01 Intrepid and even after he hooked up the car and ran through the diagnostics, the guy at the auto parts store said I need a new transmission. Turned out to be just speed sensors!!


Richmond, KY

#2 Dec 6, 2007
I have had trouble with intermittent starting problems. The engine will turn over and act like it is going to start, but it doesn't. So far, when I try again...it has started up. The past few weeks, I have also had the car act like it wants to stall when at a red light. The blower for the air conditioner reduces in power and the RPM's drop. So far it has not stalled, but it concerns me. Bo engine lights have come on yet. I plan to do a tune up, as the car has 103,000 miles. I bought it with 70,000 and I'm not sure when a full tune up was last done. I'm going to replace the fuel filter, spark plugs (and wires if they don't look good), the PCV valve, air filter, and clean out the throttle body. I hope this will fix the issue. I used to have a Chevy Cavilier and it had an intermittent stalling problem. It turned out to be the ignition coils on the Cavilier. They were easy to replace... but I'm hoping they are ok on my Impala.

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