Q: Car stops accelerating and check engine light comes on momentarily while driving.

asked by on

On occasion while driving my car the theft light, check engine light, and battery light turn on and the speedometer will drastically drop for a second. It also feels like my car stops accelerating when this happens. This can happen when driving on the freeway or driving in town. Power relay maybe? Any advice?

My car has 180000 miles.
My car has an automatic transmission.

Hi there:

It is very possible that the issues you’re experiencing are cause by a faulty main relay issue on your 2003 Mercury Sable. However, it could be other issues ranging from your alternator to simple wiring or a minor ground issue. To determine precisely what’s causing this problem, you should have a professional mobile mechanic complete an engine is stalling out inspection.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Car stops accelerating and check engine light comes on momentarily while driving.

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: How much for a water pump and belt and other small parts installed on a 2002 mercury sable

Billing question was sent to CS for the cost of parts and labor to replace the water pump, drive belt, and associated parts on a 2002 Mercury Sable with a V6-3.0L engine.

Q: Car not starting after starter replacement

There are multiple issues that can cause a no start. When dealing with a situation the next best step would be to have a qualified technician perform a starting/charging system inspection to check the battery and starter for proper operation....

Q: I have a 2000 Grand Marquis my girl crashed up the front end so I need some aftermarket body parts.

Billing question sent to CS for the cost of aftermarket parts to repair the front end after a crash.

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 to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.