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Chevrolet Impala Transmission Problems

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  • Well I guess I am joining the not so exclusive club - the Chevy transmission failure club! Impala turned on us today w/o much notice - surging & then no power. Limped to Chevy dealer in Okomos, MI. w/ diagnostic & complete rehaul/replace/rebuilt for the tune of $4K! We are sitting at 73,000 miles & does not make sense to invest that kind of $$ w/ all the other potential failures I have read about on this forum.
    So it sounds like a class action lawsuit is in order for all of us vs GM . . . . Who's in?? And GM wonders why Obama had to bail them out.
    Miserable in Michigan w/ my Chevy lemon :-(
  • kul85skul85s Posts: 1
    i also have have a 2007 impala ss i purchased the car from a dealer the car was 15000.00 and i offered 10.000.00 cash they said no way 2 months later i get a call from them saying they would accept my money i thought that was strange a few months later i see why ttrans starting acting funny and i am a transmisson tech so it happens to everyone i pulled the tranny and noticed it was just rebuilt by dealer what i come to notice is that first of all vehicle gets way to hot and the exhaust runs right over the trans not smart and noticed 2nd clutch burnt and support housing rings are plastic bad design so i droped the engine temp by 10 degrees heat rapped the exhaust replaced rings and seals in the 4th cluch and pressure boost valve and tourque converter for around 400.00 good luck to all ss owners
  • I have the same problem on my impala. Did replacing the solenoids work?
  • dee222dee222 Posts: 1
    Ask them to check the Throttle Body. I have had the same exact thing happen to me. Good Luck
  • hello, i would like to get some info on what tools i would need to change a gear/shift cable on a 2003 chevy impala. please respond to my email at brobeck76@gmail.com thank you very much--Rob
  • I experienced a similar problem, but was while in overdrive then down shifting to passing gear and back up or down again. It started out sporadically, shifting like it had a shift kit installed. I would pull over and turn the car off for a minute or so. (making sure key was in the off position and not on accessory and dome light and radio quit playing), fire it back up and problem would go away for a day or two. Then it started progressively getting worse and more annoying. Took it to a trans shop and problem was a one of the servos/solenoids. He replaced it and at that problem went away. The repair was done for around $400.00.
  • 2004 impala trans would slip then hard hit starting out. Used a kit to replace some springs and spacer in accumulator in trans, and it fixed the problem.
    Transco SK 4t65 E shift kit.
  • Everyone who has the Pressure Control Solenoid issue, please make sure you don't have too much transmission fluid -- it will cause the transmission to get clunky and give off the Pressure Control Solenoid code (GM even issued a TSB on it). If there is any possibility more fluid was added, suck some out and try driving it. If it still clunks, suck a little more out. There is likely nothing wrong with the solenoid.

    Twice, mechanics have put too much fluid in and it caused clunking. Both times I fixed it by sucking a little out. My original 4T65E 2001 transmission now has 176,000 miles on it and is still going strong.

    I used a car wash vacuum and aquarium tubing to suck some out the first time. Since then, I have purchased an oil extractor pump which I also use to change the transmission fluid. 
  • Everyone who has the Pressure Control Solenoid issue, please make sure you don't have too much transmission fluid -- it will cause the transmission to get clunky and give off the Pressure Control Solenoid code (GM even issued a TSB on it). If there is any possibility more fluid was added, suck some out and try driving it. If it still clunks, suck a little more out. There is likely nothing wrong with the solenoid. DO NOT RELY ON A MECHANIC TO CHECK FLUID LEVEL. THEY HAVE TO WARM IT UP PROPERLY FIRST AND VERY FEW WILL TAKE THE TIME TO DO THAT.

    Twice, mechanics have put too much fluid in and it caused clunking. Both times I fixed it by sucking a little out. My original 4T65E 2001 transmission now has 176,000 miles on it and is still going strong.

    I used a car wash vacuum and aquarium tubing to suck some out the first time. Since then, I have purchased an oil extractor pump which I also use to change the transmission fluid. 
  • Bought this car almost 2.5 years ago and began experiencing some surging in the transmission recently. Took it to the local GM Dealer and had them run test since I was nearing the end of my warranty and wanted it taken care of since i knew there was a transmission issue. As expected no codes popped up so they had a kid drive the thing around couldn't replicate. So instead of addressing the issue they tried to sell me more transmission services (flush, etc.) insisting this was the issue. Turns out according to Service Bulletin 10023432 this problem is well documented. Now three months later I am out of warranty and looking at a $4,000 dollar fix. How convenient for GM and the dealership, right. You would think GM certified techs would look at bulletins but why do it for free when you can tell the customer he is crazy and charged him 4,000 in a few months.
  • I have a question, I have the 2008 impala and the trans slips everyday.
    It started at like 10,000 miles, do you think a trans filter and maybe putting in that Royal Purple fluid would help.

    Thanks,
    crewchief4u
  • my 08 impala with the 3.9 L is a fantastic car, but at about 100k, transmission started slamming during shifts. GM dealer could not find problem and no codes showing. I took it to a shop that has contracts with several police depts. for transmissions. I described the problem, he said valve body. $2100 repair and worked fine. Now at 124k, transmission seems like it is slipping, and at low speeds with very little throttle, I can feel shudder. Would be nice if GM had good transmissions. I have had almost all GMs since 1960's and almost all have had transmission problems at under 100k, but engines have lasted into high 300k miles. but the few Fords I had had good transmissions but the engines did not last (last owned a Ford in 1995). This year bought my wife a Nissan Versa Sedan with CVT, transmission code at 52k, replace whole transmission under warranty with no questions, problems or hassles. Maybe I need to start looking at other than GMs.

  • Besides the Transmission problems, both front hubs have been replaced, the left one twice for bearings and the right for bad ABS/Traction Wheel Sensor and the Rack & Pinion has been replaced. I have done most of my repairs on past cars/trucks myself and every vehicle I have had has made it well past 300k on the engines, but the rest of the quality on this Impala is going down hill.

  • I just happen across this post while trying to troubleshoot why my computer control system(tells me about my oil life, tire pressure, etc.) is not working. I have a 2004 Impala and I about fell out of my chair reading some of these posts. This sounds just like the stories that I have been telling my mechanic for months. He tells me he can't figure it out w/o codes, so the next time my car died while I was going 65 mph, I had AutoZone print the codes read before the check engine light went off. Still no luck fixing it though. The trans(was replaced w/ a rebuild) problem jerking when I take off, car not starting and then just mysteriously starting, electrical system malfunctioning. When I first noticed a problem the car's RPMs would fluctuate and sometimes the gas would control itself. My mechanic replaced the throttle body and MAF sensor and it seemed to work perfectly. However it did not fix the other issues. The check engine light still comes on and will go off after I shut off the car and sometimes a couple of days later. I am very disappointed hearing that so many people are having the same problem with their Impala. In the past I had faith in General Motors. I will be contacting them and will repost.

  • My 2007 Impala has just hit 102,000 miles, and the transmission is displaying the same behaviors many of you have posted here, with the lurching and clunking from 1-2, and the neutral type clutching/loss of power from there on up. This car has had every standard maintenance and oil changes performed at dealerships, and is mostly highway miles, so I certainly expected more out of her before having these types of issues. From those of you who have found a resolution, was it the clutch? or Solenoid? and where did you take your vehicle to have your issue resolved? Just hoping to get some insight before I get screwed on repair bills :(

  • mr06lsmr06ls Posts: 2

    STAY AWAY FROM GM! my 2006 impala with only 79k i bought new and have kept up all maintenance on and was lady driven has a bad transmission and i contacted gm customer service directly and told them that a transmission with less than 80k should fail especially since i have done all required maintenance considering im now out of warranty. i was then told that in order for gm to "help" me i would have to take the car into the dealer and have the problem diagnosed. at first i was told the diagnostic fee was $139....after going back and forth with gm customer service i got them to waive the fee. so i limp the car over to the dealer only to be told that the diagnostic scanner showed 3rd gear having a problem but in order to be able to tell me EXACTLY what the problem is, they want to charge $860 just to tell me what needs to be replaced. so if i was paying for this they would expect $139+$860 which equals $1000 JUST TO TELL ME WHAT NEEDS TO BE FIXED! I CONTACTED THESE CUSTOMER SERVICE SCHMUCKS ON HERE THAT SAY "SEND ME AN EMAIL WE'LL TRY TO HELP YOU" AND GM SAYS THEY'RE WILLING TO PAY FOR ONE HOUR OF LABOR AS A COURTESY! GEE WHIZ HOW NICE OF THEM! I PAID $23K FOR A BASE IMPALA (RIP OFF BUT I NEEDED A CAR SO DEALER SHAFTED ME) that has taken a dump at under 80k miles! CHEVY SUX AND SO DOES GM! ill be spreading this along BTW

  • jclucthjclucth Posts: 1

    I am currently having problems with my 2004 impala transmission. It slips two to three times every time I'm driving up a hill. I've been having this problem for a while now, especially since I moved to Atlanta. I know I have about a good year or so before it goes out completely. I was thinking about getting a used transmission put in my vehicle, until I called around and realize the part and labor for this transaction was too expensive. Especially since my vehicle is ten years old. However, my vehicle only has 80,000 miles on it. I was thinking about maybe getting the old fluids flush and replacing them with new fluids. This transaction will only run me a few hundred bucks at the most which is much cheaper than getting a new, rebuilt, or used transmission. Would anyone mine sharing with me there past experience of getting there fluids flush? Did it help or at least minimize the transmission slips when driving your vehicle?

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