Last post on Oct 29, 2013 at 8:06 AM
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Chevrolet Impala, Auto Repair, Electrical, Fuel System, Sedan
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#327 of 483 REDUCED ENGINE POWER MESSAGE
Feb 28, 2013 (6:37 pm)
I have a 2007 Chevy Impala LS and after my REDUCE ENGINE POWER light came on I came to this forum to get some feedback. I saw that this has been an ongoing problem for what looks like hundreds of Chevy owners. I've since had my sensor replaced for $25 by a mechanic I know. I paid $104.00 for the sensor (from dealer) but saw it online for about $70 (didn't have time to wait for deliver). I was told two different things about the throttle systems. One was that the whole thing had to be replaced and the other was that I needed to know if my system was one that allows you to remove the sensor separately. I decided to go to my guy in the end. Car running fine so far...had it done about a month ago and it took less than 15 minutes for him to do the work. Nevertheless, I'm a bit upset that it has not been a recall on this. Just saw a Ford vehichle problem just like this and a recall is expected. PLEASE POST RECALL IF IT HAPPENS SO I CAN GO GET MY MONEY BACK FOR THE PART! THANKS
Feb 28, 2013 (7:11 pm)
Ive called GMs customer service multiple times reguarding the issues with my car. They have done absolutely NOTHING to work with me to fix the problem. I asked why they werent doing a recall since so many people on here have the exact same issue, I was informed that this was most likely a false forum because if that many people were complaining there would be a recall issued.. So apparently GM thinks we are all crazy and could care less if (God forbid) anyone were killed or seriously injured in their vehicle. One thing for sure I will NEVER buy a Chevrolet again.
#329 of 483 Re: REDUCED ENGINE POWER MESSAGE [detroitgirl313]
Mar 01, 2013 (6:33 am)
We're glad to hear that everything's running well after the replacement, detroitgirl313! Keep us posted on this if anything should change (although we hope that everything's resolved for good!).
Sarah, GM Customer Service
#330 of 483 Re: 2011 Chevy Imapala - Reduce Engine Light [gmcustsvc]
Mar 01, 2013 (11:08 am)
How many times in the last two years you are going to investigate these claims?? the same Request over and over from GM is asked every time, after a 10000 or so complaints don't you think its time for GM to do something?? or maybe Sara you need to really stop feeding us this useless BS.
I too have this problem I replaced the pedal, the Trottle body the wheel sensors re seated all of the connections and every now and the the car goes into reduced power... My belief is there is a software problem that you guys cannot fix because its a expensive recall, I do know one thing If my family gets hurt in this car that you say does have problems.. I'll be sure to fire you first when I own it...
#331 of 483 Re: reduced engine power [frenchy79]
Mar 01, 2013 (3:45 pm)
French79, just got my impala back, they replaced the throttle positioning sensor, $340.00, (live in central PA, don't know what it will cost around the country) and it appears to be working, but it is only day one. I'll let you know if something happens. PS I ran the scenario through with my wife,(there are TOO many posts where this fix didn't work) so if it happens again with her, she will know what to expect/do.
#332 of 483 Ruduced Engine Power 09 Impala
Mar 02, 2013 (11:32 am)
I am a canine officer and was issued a new 2009 Chevy Impala to replace a Ford Crown Vic canine vehicle.
This HUGE MISTAKE was made in the name of saving fuel. Turns out the 3.9 L engine is so underpowered when you add the extra weight of the kennel insert, dog, and gear, it actually gets worse fuel mileage than the Vic did with a V8 but I could go one for days about how the Vic is a better police vehicle than the Impala.
The real issue is a reoccurring problem that started at about 9000 miles. The service engine light comes on shortly followed by a message that says REDUCED ENGINE POWER. When this happens the vehicle will barely drag itself back to the Chevy garage.
Each time the Mechanics say the code shows a rich fuel mixture which is easily reset. Resetting the code temporarily hides the symptoms of a problem that is still unknown three years and 90,000 miles later.
The mechanics have done all they can including emailing engineers at GM for suggestions. The Engineers told them the problem is believed to be a “rare” software issue in the cars computer. I have been told that not even changing the computer would fix the problem because the same software would have to be uploaded in the new computer.
I would estimate that over the past three years I have had the vehicle in the shop approximately 50 times to have the code reset.
As I write this post the vehicle is currently in the shop waiting on the code to be reset with no solution in sight.
I got on this forum with a hope to assist the mechanics find a solution but after reading years worth of posts by other chevy customers it looks like thats not going to happen.
It looks like the problem is not as “rare” as the GM engineers let on. It also looks like GM has no answer to the problem except to have a PR person give a PC response to every post.
No offence Sara but don’t waste your time on this post. I made up my mind about the impala a long time ago. If GM really wanted to do right by their customers they would buy back these cars and replace them. Thank God I didn’t pay for this one, it’s the tax payers that are taken the hit with this one.
#333 of 483 Re: Ruduced Engine Power 09 Impala [jsmitty762]
Mar 02, 2013 (2:38 pm)
Sorry to hear about your problems with the Impala. GM should have given you better advice because this problem is either related to the throttle body or accelerator. Impala owners have posted many messages on this forum about how to fix this problem. Good luck.
#334 of 483 Re: 2011 Chevy Imapala - Reduce Engine Light [uselessreps]
Mar 04, 2013 (7:24 am)
We do handle these complaints on a case-by-case basis at the customer service level. Our documentation is reviewed for trends and brand quality decisions are made by different departments. If we can look into your situation further to the extent of our abilities, please don't hesitate to contact us at socialmediagm.com (include your name and contact information, the last 8 digits of your VIN and mileage, and a summary of the situation).
Sarah, GM Customer Service
Mar 04, 2013 (8:58 am)
Unfortunately, my experience was very similar to the other posts on this forum. I was driving on a busy road (traveling around 60mph) and all of a sudden my 2011 Chevy Impala started shaking tremendously and a message flashed "SERVICE STABILITRAK" "REDUCE POWER TO ENGINE";All while my speedometer is vastly decreasing. I was not able to accelerate at all and to pull over on the median. Again I'm on a busy road with other vehicles driving at least 60mph. I called Priority Chevrolet in Chesapeake, VA and the customer service rep assured me this would be covered under my warranty. At that point I was happy to get it fixed for free. However, when I arrived at my appointment, the rude and unprofessional manager fed me a different story. He said that it MAY be covered under my 5year/100K warrany but if not I would have to pay for the diagnostic test AND the cost of repairs and labor. After being very upset I left and will try another Chevy dealer very soon. If it is not covered under my warranty and I do have to pay for it, I will hesitantly do so. If I continue to have the problem, I will push as hard as I can to have this problem rectified via a recall. I will also report GM/Chevrolet to the BBB and any other consumer reporting agency for their apparent lack of concern for their customer's safety. Both my father and my brother love my car and wants to purchase one. Because of this problem, I cannot recommend this vehicle to them and anyone else at that matter. I could have seriously hurt myself. . .or worse. I could have seriously hurt someone else. . .or worse. GM needs to remedy this problem and soon. They also need to refund customers who had to pay out-of-pocket to have this problem fixed. Hopefully, this very serious will be fixed. Soon.
#336 of 483 Re: Unacceptable [safetyfirst83]
Mar 04, 2013 (11:24 am)
It looks like you're already in contact with Customer Assistance on this matter. We hope that this will be able to resolved quickly and to your satisfaction! Looking forward to any updates.
Sarah, GM Customer Service