Last post on Oct 29, 2013 at 8:06 AM
You are in the Chevrolet Impala
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Chevrolet Impala, Auto Repair, Electrical, Fuel System, Sedan
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#74 of 483 Re: chevy impala "REDUCED ENGINE POWER" message [margie02323]
Feb 27, 2012 (4:56 pm)
Good luck. I also have a 2010 Impala that I just purchased 2 months ago and I have the same issue. Stable light traction light comes on and then reduce engine power goes on. The engine light stays on solid for a few drives cycles.
It is scary. I also just had a major transmission repair which GM did cover undr warranty. However, I have had the car in the shop more than I have driven it.
#75 of 483 Re: Engine Power Reduced.........Why?!?!?!?!?!?!?! [jpf]
Feb 27, 2012 (5:02 pm)
do you know if this is covered under warranty or do you have to cough up the repair yourself>
#76 of 483 Re: Engine Power Reduced.........Why?!?!?!?!?!?!?! [cornelltrail]
Feb 27, 2012 (6:45 pm)
It is not covered under the powertrain warranty. It is usually the gas pedal assy that usually causes this to happen, and it is caused by a sensor in the assy. It is just a bad design in my opinion.
#77 of 483 Re: Engine Power Reduced.........Why?!?!?!?!?!?!?! [cornelltrail]
Mar 01, 2012 (6:57 am)
I just got my car from the GM dealer here and its an out of pocket expense for me. Roughly $450 to replace a faulty throttle body. If it was a warranty issue I'm outside of it now. 101,574mi. Perfect timing right?
#78 of 483 Re: Engine Power Reduced.........Why?!?!?!?!?!?!?! [scooks71]
Mar 02, 2012 (7:38 am)
I want to make sure I understand your post here - you just purchased your vehicle from the GM dealer, or picked it up after servicing it for the Reduced Engine Power concern?
If we can look into this further with you, please send us an email with more information (include your name/Edmunds username, phone and address, the last 8 digits of your VIN and current mileage, and the name of your involved dealership).
GM Customer Service
#79 of 483 Re: Engine Power Reduced.........Why?!?!?!?!?!?!?! [scooks71]
Mar 06, 2012 (10:12 am)
I just had the complete throttle body assembly replaced yesterday. 39,000 miles and it was covered. started with check engine light. In Dec the dealer replaced 'secondary air injection valve.' Light stayed off for 2 weeks, then was intermittent until Saturday when we go the 'reduced power' message and it stalled. The report said the throttle body was shorted.
#80 of 483 Re: Engine shut off on highway. Very annoyed with Chevy right now! [madchevyguy]
Mar 09, 2012 (7:49 pm)
I bought a 2008 Impala a year ago. I have about 67,000 mls on it, and in the past couple of months I have had a lot of trouble keeping it on the road in wet conditions. I started hearing a rubbing noise in the steering and a chirping noise while backing up when I turn the wheel all the way (both ways), and clunking noises when I turn. Chevy dealer said I had rust on my rotor and it will be fine. I noticed my left front tire was looking low, and when I took it in for an oil change and tire rotation, I was told the lower ball joint was broke and it was causing the tires to ware. I took it to my mechanic. He called Chevy and was told about a bulletin on the cars allignment. GM had a recall for police cars and government cars, but only a bulletin for the public. He fixed the alignment and put new tires on the car, because the front left was down to metal, and the others weren't great. The mechanic said that I shouldn't have any problems with my tires now. However, all of the rubbing, chirping, and clunking noises did not go away. Ideas?
#81 of 483 Re: chevy impala "REDUCED ENGINE POWER" message [idahofarmboy]
Mar 11, 2012 (5:08 pm)
I am having the same problem. It started out shifting hard, occasionally. Then it began shifting hard a lot. Little by little it has gotten worse. The engine power is reduced a lot, service traction control and service brake assist messages pop up. Sometimes it stalls, and wont start. I get a "starting disabled, service throttle" message. I wait five minutes and then it starts. The car runs like crap! I dont want to take it to a dealer because they are too pricey for me. Mine is a 2007 Impala LTZ. I agree, I doubt we are the only ones with this problem.
#82 of 483 Re: chevy impala "REDUCED ENGINE POWER" message [gmcustsvcsarah]
Mar 15, 2012 (7:45 am)
What part of the warranty are they covered under?
I have an Impala 2009 and I'm getting this issue as of today. Reduced engine power and "service traction control" messages.
If this is not covered under warranty I certainly won't be taking it to a dealership for fixing.
This is obviously a very common issue. Why has there not been a recall? Why is GM not doing anything to address the problem?
#83 of 483 Check stabilitrak light, reduced engine power
Mar 26, 2012 (1:52 pm)
I have a 2011 Impala LT with 48000 miles. The check stabiltrak light came on and reduced engine power light. This is the first time it has done this and from what I read on your forum this is an ongoing problem with GM vehicles. After years of driving Fords, this is my first GM car since 1974 and I'm really disappointed. All of my Fords had over 100,000 miles on them before I had issues. Now I'm told I need to take to the dealer to have it checked and I'm retired and living on a pension. This seems like an engineering problem to me. GM needs to recall these vehicles. I only hope it's something covered under the 100,000 mile warranty.