Q: Reduced Engine Power Light is on - 2006 GMC Sierra 2500 HD
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.
Recommended Services
| Check Engine Light is on Inspection | $94.99 - $114.99 | Get a Quote |
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.
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・Fair and transparent pricing
What others are asking
I have a crunching/grinding like sound coming from my front left wheel when i only do tight turns,,just of recent i had a new tyr
I assume you have a vehicle that is front wheel drive and the noise is from the axle constant velocity joint binding. The outer boot gets torn from normal use and will get dirt into the joint and lube gets...
I am going to attempt to change the wheel bearing or hub asssmbly on my car.
This is a repair that is going to take require some specialty tools and techniques to complete correctly. It would be highly advisable to have a certified mechanic perform this or possibly assist you with the repairs, especially if the...
My vehicle displays the SVS light only for 10 seconds after I have run the car for a few kms at the start of the day. Is it a concern?
Hi there. If the engine service soon light (service vehicle soon - SVS) comes on for about 10 seconds and then shuts off and does not appear the rest of the day, then this is normal. The condition is the...
If I accelerate my heat blows hot....idle speed blows cool and overheats if at an idle
The heater not working in some cases may be related to the overheating problem you are also having. This may be due to a faulty heater blower motor or potentially a bad heater core (https://www.yourmechanic.com/services/heater-is-not-working-inspection). As you may know, the...
Speedometer and odometer and trip mileage stopped working
The back of most dashboards is an electrical relay, which supplies power to individual components inside the dash. If all of these systems are not functioning, it's possible that this electrical relay is damaged; or perhaps an electrical wire /...
Car jerks forward slightly everytime I hit 19 mph
Hello, and thank you for writing in. The misfire needs to be the focus of our attention. If you had moisture on the spark plugs and white smoke, then there is some kind of coolant leak. This fouling on the...
Reversed battery terminals
Reverse polarity, at the battery, in a 12 volt electrical system on a car can cause a variety of effects including damaging the alternator. As an initial step in diagnosing the battery warning light you can request that a certified...
I have a 08 Nissan Altima 2.5 why is it running hot?
The heater is a "heat exchanger" just like your car radiator. If the car is running hot and you blow air over the heater "core" in the passenger compartment you, in effect, increase the cooling capacity of the car's cooling...
So I need a special tool to remove a knock sensor on a 2005 Buick LaCrosse
An ordinary 6 point socket is used to replace the knock sensor on this model. Stalling, if that is what you mean by "cutting off", is not typically caused by a faulty knock sensor. Unless the knock sensor has been...
Related articles
A Buyer’s Guide to the 2012 GMC Yukon
When When you want a big SUV that can hold its own, come what may, you’ll be happiest with a GMC Yukon. Although the inside of one of these vehicles can sometimes resemble an upscale hotel room, the 2012 GMC...
2012 Chevrolet Equinox vs. 2012 GMC Terrain: Which One Should I Buy?
The mid-size crossover SUV category offers the comfort and size of an SUV, but on the platform of a car, giving it the look and feel of a large hatchback. The unibody construction typical of passenger vehicles is used instead...
Is It Safe to Drive With the Reduced Power Light On?
When When your Reduced Power Light comes on, that is your vehicle’s way of telling you that there is a problem, either within the charging system, or within the battery itself. It could indicate that your battery is dying, that...
Browse other content
Cities
Maintenance