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

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
  1. Home
  2. Questions
  3. My 2000 Chevy Tahoe has a few messages. It says reduced engine power & ending service soon, What could the issue be?

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: Check Engine Light is on - 2005 Dodge Stratus

You can keep replacing parts but until you get the codes in the computer diagnosed properly the Check Engine Light will keep coming on. The O2 sensors may give indications that they're not working when they are only indicating the...

Q: 2000 Tundra has a small current leak that kills the battery if the truck hasn't been driven in a week or so.

Hi Larry. Thanks for contacting us today. While removing the battery cables reduces the battery drain, it doesn't resolve the problem. What you're describing is called a parasitic battery drain and is often caused by an electrical short or open...

Q: My vehicle does not want to stay on, I disconnected the TPS and it stays on but the rpm jumps up and down. I've recently replaced

If the RPM's struggle to remain stable, this suggests you may have a vacuum leak or a fuel supply problem. I would recommend plugging the throttle position sensor back in in order to properly trace the problem. The car may...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
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.