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・Fair and transparent pricing

Get a quote

What others are asking

Q: How do I use the 110-volt power outlet?

The 110-volt power outlet is located at the rear of your center console. This outlet can be used to power larger electrical devices, and should be operated like a standard outlet.

Q: How do I arm and disarm the immobilizer?

The immobilizer is a key safety feature that helps keep your vehicle from being stolen. The immobilizer makes it so that your vehicle cannot be started unless a key is in the ignition. You cannot manually arm or disarm the...

Q: Engine shakes when fuel is added

Hello! If the rubber bushings and motor mounts are really bad then it could cause a knocking noise. There should also be transmission mounts as well. I suggest to check out the motor mounts and transmission mounts for wear and...

Related articles

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.
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.