Skip the auto shop - Our mechanics make house calls

Q: Engine stumbled, reduced power/speed, & warning light on

asked by on

When traveling around 50 mph, I went into passing gear and the engine started stumbling. The amber wrench warning light flashed on. I only had partial power the rest of my way to work and only could make about 40 mph on the highway. Then when got back into my car later, the problem was gone. Could this be a coil problem or what do you suggest it is?

A: Hi there. This can be a coil or a number of...

Hi there. This can be a coil or a number of other things. Since the check engine light came on the computer needs to be scanned for codes. I typically scan it first to see what is going on. From there I would know if it may be a coil or another part of the ignition system. It can also be a bad sensor or a fuel system problem so the codes are definitely needed. If you want to have this fixed, consider YourMechanic, as a certified mechanic can come to your home or office to inspect the cause of the issue.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: Why doesnt the truck start when changing the oil and fuel filter?

The fuel filters should of been filled before installation. You will need to bleed out all the air from the fuel system to get the vehicle to start. In the future you will need to fill filters before installation. This...

Q: Dashboard lights on all the time - 2013 Infiniti JX35

Hey there. There is no information on the issue you are having with the dash lights. You may have a short in a harness causing the light to stay on. I would have a mechanic scan the body computer to...

Q: Car won't start after having radio playing

When you buy a new battery, it has been sitting on the shelf for who knows how long and may start with a lower voltage. When you start the vehicle and test the battery while the engine is running,...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.