Skip the auto shop - Our mechanics make house calls

Q: The car runs fine some days,then other days it wont..

asked by on

The car runs fine sometimes then other days ( most) it will start ,sputter then the engine will accelerate on its own then sputter again and die. Does same thing over and over again . Tried replacing air flow sensor , didn't help , also tried a new computer and again nothing. Any ideas or suggestions?. By the way on the couple days in between when it worked car ran fine.

My car has 83000 miles.
My car has an automatic transmission.

Hi there. Many different faults will cause your 1999 Chevrolet Lumina to run poorly, sputter, and stall. The most common would be a vacuum leak, spark plugs, exhaust leak, oxygen sensors, cap & rotor, or distributor. To have the problem pinpointed, I recommend having a certified professional inspect the sputtering issue firsthand so that this can be taken care of properly.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Windshield wipers not shutting off

It sounds like your wiper switch is broken and not commanding the wipers to turn off. It could also be a stuck wiper relay, that when commanded it cannot open the circuit. I recommend having a trained technician diagnose the...

Q: Breaks

If your brake pedal is going to the floor and you are not losing any brake fluid from a leak then the problem is inside the master cylinder and will need to be replaced and system bleeding of air after...

Q: How do I accept a phone call through the infotainment system?

When a paired device receives a phone call, a ring tone will be heard through the vehicle’s sound system. If the infotainment system is currently in use, the audio will be paused, and the ring tone will be heard. To...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...