Q: My 2000 Chevy Tahoe has a few messages. It says reduced engine power & ending service soon, What could the issue be?

asked by on March 22, 2017

It will not pick up speed more than 20 miles per hour. Also when pressing on gas it will hesitate to accelerate. The horsepower only will go to 2.
My car has an automatic transmission.

Hello, thank you for writing in. The check engine light, reduced power light, and general loss of power are very likely all connected to one or two simple issues. Luckily with the check engine light on, the computer has detected the issue, and with a scan we can find out where we need to focus. What generally happens is the computer detects an issue with a sensor or component (throttle, oxygen sensor, fuel pressure, etc), and decides the vehicle is at risk of potentially major damages. This triggers a "limp mode" so you may drive the vehicle to safety and turn it off while minimizing damages. Hence why you are not able to go above 20 MPH, but did not stall. Scan the vehicle for codes with a technician or at your local automotive parts store, and take corrective action from there. For more help with diagnostics and resolving the issue, contact our service department to schedule an appointment.

Was this answer helpful?
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

Get a quote

What others are asking

2000 Buick century stop accelerating while driving,it did not shut off over heat did not smoke, I check trans fluid it was ok

The computer may limit engine power if it detects a system problem. You will need to have the computer scanned for codes stored in memory to see what has caused the loss of power and acceleration. You may have a...

I have a 2011 Camaro. The lights come on when I turn the ignition but goes off except the service engine light

This is typically normal as the vehicle's computer goes through a series of systems checks when you turn the ignition to the on position. Once the computer is done performing these checks, the check engine light will turn off, signaling...

I have a 2000 volvo s70 2.4 non turbo with a crank but no start issue.

Hi there. If the timing belt is slipped it can impact ignition timing, which will effect whether or not the vehicle can start. The best recommendation I would make is to make sure to have one of our professional mobile...

Related articles

A Buyer’s Guide to the 2012 Chevrolet Tahoe Hybrid
Chevrolet Chevrolet has always had a good name when it comes to the vehicles they make, and that is doubly true for their SUVs. The 2012 Chevrolet Tahoe Hybrid has all of the great features that you would want from...
P2565 OBD-II Trouble Code: Turbocharger Boost Control Position Sensor Circuit High
P2565 P2565 code definition If you were to break down the meaning of each part of the P2565 OBD-II trouble code, it would yield something like “B” Rocker Arm Actuator Control Circuit Open Bank 1. For the average person, that...
P0563 OBD-II Trouble Code: System Voltage High
P0563 code means a voltage reading is out of the normal range due to a faulty alternator or starter, battery, voltage regulator, or wiring issues.