Skip the auto shop - Our mechanics make house calls

Q: Reduced Engine Power Light is on - 2006 GMC Sierra 2500 HD

asked by on

Reduced Engine Power comes on when entering expressways but dosent happen during city driving. After pulling over and shutting truck off for 2 mins I'm able to go again and eventually the engine light will go away as well.

My car has 210000 miles.
My car has an automatic transmission.

A: Hello. Reduced engine power is commonly cau...

Hello. Reduced engine power is commonly caused by fuel flow restriction issues or fuel/air mixture problems. Some of the components that could be dirty or faulty include the fuel injectors, the throttle body, or the EGR system.

The best way to know for sure, especially if the Check Engine Light comes on, is to have a professional mechanic, such as one from YourMechanic, complete a Check Engine Light inspection to determine the exact 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

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: Brakes wear out fast. 1996 GMC C2500

Hello there. It does sound like your 1996 GMC C2500 has gone through an excessive amount of brake components. There are a few things that can cause premature brake component failure. Sticking calipers and wheel cylinders are the most common....

Q: Where is the MAP sensor located in this car. 2006 Suzuki forenza

Hi and thanks for contacting YourMechanic. Look on the intake and you will see a sensor that is on either the front or rear side of the intake manifold. There you will find the MAP sensor. Some of the Suzuki's...

Q: My ABS light went up

In my experience the hub and sensor both needs to be replaced. The sensor will most likely break off when trying to remove it. If you do manage to get it out, the front hub bearings wear will cause erratic...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
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...