Last post on Dec 10, 2013 at 4:27 PM
You are in the Chevrolet Impala
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Chevrolet Impala, Auto Repair, Electrical, Fuel System, Sedan
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#265 of 487 Re: chevy impala "REDUCED ENGINE POWER" message [littlegrayone]
Jan 28, 2013 (8:54 am)
The throttle body is no longer covered under the powertrain warranty as of 2010. They must have been spending too much money on throttle bodies so they quit covering them. I have a 2011 Impala with a similar problem, code P2135. The car has 53K so the real warranty has expired. The dealership wants around $500 to replace the throttle body. I can buy the part on ebay for $130 and take a half hour of my time to replace it. It's upsetting that Chevrolet extended the throttle body warranty on the trucks for the same problem but not the cars. Good job GM.
#266 of 487 Re: Help. [shesok2010]
Jan 28, 2013 (12:28 pm)
If you want for us to get you more information about any applicable warranties or to assist with working with a dealership to get this checked into, please email us at socialmediagm.com with more details (including your name and contact information, the last 8 digits of your VIN and mileage, and a summary of the situation).
Sarah, GM Customer Service
#267 of 487 Re: Help. [shesok2010]
Jan 29, 2013 (3:11 pm)
I experienced the same thing with my 2009 Impala LS, I had it narrowed down to a throttle body wire harness since juggling it would make it start and run right, turns out it was the pins that those wires were connected to in the electronic portion of the throttle body, I continued to drive it with no problems except occasionally getting a message that the throttle was disabled and the car wouldn't start but wiggling the wires worked. Last night however my car wouldn't start and I killed the battery cranking it over and trying to clear it with an Actron code reader, I had it towed after much hassle because the company sent a truck that wouldn't fit in the low clearance garage, I called the dealership I had it sent to explained the problem and informed them that while the battery was dead this wasn't the issue. they performed the diagnostic and found codes pointing to the throttle position sensor and knock sensor and replaced the throttle body with no hassle, I will be picking it up from the dealer tomorrow morning. I have heard estimates of it being costly, I've found replacement throttle bodies online for 130-150$
#268 of 487 Re: Help. [trumble09]
Jan 29, 2013 (6:07 pm)
It looks like you'll be tackling the throttle body work on your own, trumble09 - hopefully things go well!
Sarah, GM Customer Service
#269 of 487 Re: Help. [gmcustsvc]
Jan 29, 2013 (6:18 pm)
No, I took it to the dealer as it was covered under warranty, they replaced the throttle body electronic portion not the part containing the butterfly and said the car ran like a charm when they test drove for 20 miles, My father went to go pick up my car from the dealer, got in turned the key over and wouldnt start at first then it turned over and it immediately began running rough and displayed the "Engine Power Reduced" message. It seems like the technicians are stumped, as it was giving code p2135 which indicated a throttle position sensor and having replaced those it is still displaying the message, I'd rather not pay to have them guess what the possible cause could be, in the past I've been nothing but happy with their service, but for them to not know why my car is displaying this message is frustrating to say the least...
#270 of 487 Re: Help. [trumble09]
Jan 29, 2013 (6:58 pm)
Sorry for my misunderstanding!
If you want for us to check into this further, if for nothing else than further documentation, 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
#271 of 487 Saturn outlook throttle control-traction control signals
Jan 30, 2013 (12:28 am)
My 2008 outlook 8J118867 has left me stranded twice this last week. I get a computer message of traction control off and much reduced power. Out of desperation I have discovered if I turn off the car, it can “reset” itself and go back into drive mode with a check engine signal. The codes given are:
P1516 Electronic throttle mod VS, Throttle Position Performance
P2119 Throttle Closed Position Performance
P2135 TP Sensor 1-2 Correlation
It needs to be fixed quickly as I live in a mountainous area and I literally “get stuck” with my two young girls.
My trusted mechanic owns Sabaru here in Colorado springs. We have not had the best of luck going to dealers here and in Denver. We had transmission replaced when we were stranded near Denver and had to push car off the road (literally). It was amazing that it was replaced “no questions asked’ and the dealer there admitted they had to replace “a lot”. That told us that the car brand was having lots of problems.
Our local dealership is: Mike Shaw GM 1313 Motor City Dr 719-636-3881. This is the same place that argued with us about our headlight problems and then after we paid to have them fixed at a cheaper shop, a month later the recall went out about the light connectors.
Right now it is sitting at Sabaru Repair (they have been AWESOME on our subarus and I trust them totally) and Martin and I are researching the problem – and I came upon this website.
Please let us know what GM is doing about this problem. Thank you-
#272 of 487 Re: Saturn outlook throttle control-traction control signals [outlook2008]
Jan 30, 2013 (6:09 am)
Looking at your VIN, outlook2008, your powertrain warranty expires today (unless you're mileage is already past 100,420 MI). I understand you have a good relationship with your mechanic, but if you had wanted to see if what's happening with your vehicle would be covered it would be better to act on that sooner rather than later.
Sarah, GM Customer Service
Jan 30, 2013 (4:23 pm)
hi. i have a 2010 chevy impala. they are GARBAGE. service light came on when i left chevy dealer ship. they are saying nothing they can do since i left their property. i have no service warranties they say.. i was sold garbage. now i get the same message everyone is getting service traction control engine powering down. i was driving 2 days ago and it came on i went to pull over to shut vehicle off. it seems to work for a bit. as i went to turn. steering locked brakes and gas peddle went stiff. i had no control of the car went into opposing lane. and stopped. that scared the living day lights out of me. i could have been killed. i dont know what to do. i need help.. i drive granddaughter back and fourth and scared to dealth only vehicle i have. i need it for job. i only had this garbage a yr and half. nothing but headached. will NEVER BUY A NOTHER CHEVY AGAIN. THOSE PPL SHOULD BE SUED.
#274 of 487 Re: Help. [trumble09]
Jan 30, 2013 (4:49 pm)
Funny story, Dealership diagnosed my car as having a bad throttle body, replaced it, still got the p2135 throttle position sensor error, dealership was stumped and said anymore poking around would start costing me money. so My dad said I'll be there to pick it up. While he was there, he picked up a wiring diagram for the throttle body harness to check ourselves since it doesn't cost us 60-100$ an hour whatever labor cost is these days. He voltage tested two wires in the harness i don't know which but the voltage was 11 almost 12 volts, which is full battery voltage... that's a lot higher than normal 4.5ish or something I read it should be... so the garage suggested I get a new battery, I had the original AC Delco battery that came with the car so it's 4-5 years old, we have a spare lying around we connected the spare and the voltage dropped to normal levels. So fingers crossed a bad battery and a possible bad throttle body caused my problem. I have no idea if the throttle body was the issue as even after they replaced it, it threw the voltage code pertaining to the Throttle position sensors, we're gonna give it a few days and see if the new battery fixes it, otherwise we have to chase electrical gremlins as they are not covered under GM's warranty when your bumper to bumper runs out. I will keep you all posted. Fingers crossed!