Skip the auto shop - Our mechanics make house calls

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.

A: Hi there: It is very possible that the is...

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?

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・Save up to 30%

Get a quote

What others are asking

Q: the anti-theft chip came out of my key now my car wont crank

With your vehicle it is possible that there may be a fault in your security system which may have been triggered by removing the security chip. There may be a fault code stored in the computer of your Mercury Sable...

Q: the name of a part

Based on the information given, you may be referring to the ignition coil. I know that on this particular vehicle, the ignition coil is black and also located in the center of the engine. The ignition coil also may...

Q: What could cause engine light to come only after driving for about 5 miles.

The check engine light comes on when the computer systems on the vehicle detects a problem. There are hundreds of possible codes and problems that can cause those codes. You will need to have the computer tested to see what...

Related articles

How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...