Why does my Chevy truck have reduced power?
Unfortunately, the reduced engine power issue on Chevrolet trucks has more than one possible root cause. Keep in mind when I mention Chevy I’m also including the GMC trucks in this article as well.
What is the code for the throttle body actuator?
If it sticks the computer struggles to find the right position. Another throttle body actuator problem involves the General Motors throttle position sensor. A code P0120 through P0124 could set indicating communication issues with the TPS sensor.
Why does my Duramax say reduced engine power?
If you’ve got a Duramax diesel, the Reduced Engine Power warning could Illuminate for a variety of reasons. There are many different technical service bulletins (TSBs) for Duramax-powered vehicles that mention Engine Reduced Power mode.
What causes a throttle body assembly to go bad?
There are several things that can cause this condition but by far the most common is a faulty throttle body assembly. I have noticed a disturbing trend in these vehicles in that the last few that I have had to change I also found very weak batteries and the weaker the battery is during cranking the more pronounced the symptom.
Unfortunately, the reduced engine power issue on Chevrolet trucks has more than one possible root cause. Keep in mind when I mention Chevy I’m also including the GMC trucks in this article as well.
What’s the problem with my 2003 Chevy Silverado?
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If it sticks the computer struggles to find the right position. Another throttle body actuator problem involves the General Motors throttle position sensor. A code P0120 through P0124 could set indicating communication issues with the TPS sensor.
What to do if your Chevy Silverado has reduced engine power?
After it has warmed up, turn on the A/C (if so equipped) in park for 10 seconds, leave the A/C on and put it in drive for 10 seconds, leave it in drive and turn the A/C off for 10 seconds, then put it in park and turn the vehicle off and you’re done! Restart and take it out for a drive to see how it runs.
If you’ve got a Duramax diesel, the Reduced Engine Power warning could Illuminate for a variety of reasons. There are many different technical service bulletins (TSBs) for Duramax-powered vehicles that mention Engine Reduced Power mode.
What kind of engine does a 2003 Silverado have?
Just for reference, my truck is a 2003 HD1500 crew cab with the 6.0 Vortec that has just over 200,000 miles on the clock. The last few winters when it would get at or below about 10 F I would get the REP message and check engine light on the dash, could only go about 15 MPH tops when it happens, very inconvenient and dangerous to say the least.
Is there a fix for reduced engine power?
There is no silver bullet to solve the reduced engine power message issue. It will take a little diagnosis or at least a process of elimination to solve the root cause. The good news is you have a 50-50 chance of it being a less expensive solution. My final thought about the drive-by wire system is not a pleasant one.
How to fix reduced engine power and service traction?
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Why does my GMC have reduced engine power?
GM and GMC vehicles have been plagued by throttle position sensor problems along with the dreaded reduced engine power or limp mode. Here, we show you the cure. T.S.B. https://www.autocodes.com/uploads/gmc… Loading…
What does it mean when your car says reduced power?
In most cases, the Engine Power Reduced warning indicates that your car’s performance has been intentionally limited. “Reduced Engine Power” Message Your car’s primary computer, often known as the powertrain control module (PCM), triggers Reduced Power Mode when it detects a system failure.
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What does it mean when your engine power is reduced?
In other words: The Engine Power Reduced message is GM’s way of telling you that your car has entered a fail-safe mode. GM’s Reduced Power Mode can inhibit your vehicle’s ability to accelerate. Even if power isn’t reduced immediately, performance may be limited the next time you go to drive the car.
When do I get a reduced engine power warning?
The nice thing about this type of system is that it can be even more instant than an actual hard connection by a cable. The bad thing is, when there is a problem in any part of this system, it can render the vehicle literally un-driveable and you will get a check engine light and reduced engine power warning.
Can a truck run with reduced engine power?
While driving the truck will go to reduced engine power. I can stop, turn the key off and restart within a few seconds. It will then run fine, sometimes for a few miles, sometimes for weeks. Some times it will clear the engine hours, sometimes it won’t.
In other words: The Engine Power Reduced message is GM’s way of telling you that your car has entered a fail-safe mode. GM’s Reduced Power Mode can inhibit your vehicle’s ability to accelerate. Even if power isn’t reduced immediately, performance may be limited the next time you go to drive the car.
The nice thing about this type of system is that it can be even more instant than an actual hard connection by a cable. The bad thing is, when there is a problem in any part of this system, it can render the vehicle literally un-driveable and you will get a check engine light and reduced engine power warning.