So let me begin by saying I'm tired of all these issues, I mean its one thing after another now a days. My car doesn't shift into 2nd gear. It used to take going up a hill for it to switch over, but lately that doesn't even work, the rpms just rum high like I'm in neutral. Its very annoying driving 30 mph everywhere we go. When it does shift she drives like a beast. No one will give me a straight answer on what the problem is so we can address it. Shes a weird car that's for sure, but I love it and can't bring myself to part with it. She has 226,000 miles on her. Can anyone help?

Typical GM transmission. All be it the car has been on the road for 11 years when it went. The rebuild took 10 days, the only original part left is the casing. Maybe if a quality product was first installed, but, that is wishful thinking. My 77 Impala was a tad different, the tranny was built for the 305 engine, the tranny died three times with GM claiming it had been fixed all under warranty. Finally they dropped a new one in built to take the 350 engine. It served the car from Feb 1977 until October 2002 with just a few fluid changes.

I have numerous problems with my 2003 chevy Impala. Even though its a used vehicle i didnt think i would have so many issues. 1. A sensor went out and had it replaced it ran fine for 3 months and it happened all over again. 2. Sensor went out again. had it fixed. Then on 3-2009 had transmission issues and intake manifold gasket and thermostat replaced for $679. 3 2010 replace the transmission It still had the same issues .4-7-2010 replaced front torque strut mounts SES Light misfired on #3 cylinder, Helicoil 2 rocker bolts and it cost me 433.09 then on 6-1 09 SES light again replace fuel filter and brake pads and had to have 2 rotors turned $231.00 11-09 had to have the SES light replaced again engine temperature replace thermostat $171

3-1-11 replaced the Radiator fan 416.00 the car ran fine until 7-14-11 Repaired #1 cylinder Rocker arm $255. had a tune up done in October 2011 $700 at the same time the battery need to be replaced was $110 . Driving it 9-2-2012 and the car was sluggage and the car started to stall the engine light came on. when I stopped to check the car stepping out I felt so much heat coming from the undercarriage and the hood. I got in the driveway and it stalled out I let it cool off and the engine light still comes on and make a clicking noise. So I'm warning anyone if your buying a new or used Impala If one thing goes out be prepared to fix the entire car because It seem to never work the same after one thing goes wrong. I was told it was a safe and reliable car but driving on the highway and the car stalls out its like an accident waiting to happen. Chevy needs to pull the old cars off the road that has had so many problems and fix the issue. We already pay enough for the car why should we be stuck fixing issues that should have been fixed in the first place.

After reading several postings here we thought we would have to replace the transmission. We took it to a shop and had it put on a diagnostics machine and were to FOR SURE it was the throttle pressure sensor and the part is only $35.00. We had just bought the car from a used car dealer and drove it at least 20 miles to our mechanic to have checked out. The transmission never acted up once. We bought the car for $3000 plus tax, title. The very next day when starting out from a stop the car made several jerks like the tires were not catching on pavement. It happened several more times and started slipping out of gear, grind and slip back into gear while driving. If this sounds like what your car is doing try to find an HONEST mechanic, a misnomer I know, but ask him to REPLACE the throttle pressure sensor FIRST.

This 2003 chevy impala has been a pain in my ass. Since I've had it I have repaired the intakes 72,000k, motor 114,000k, transmission 90,000k, crank shaft pulley 80,000k, catalytic converter 80,000, gm knows this fleet of cars are bad but will not take ownership of all the problems we consumers are having. I have spent out of pocket 5,400 in repairs & still have 24 car notes left. I can keep going on and on about all the problems I have had with that car. It's like the car can't be repaired.

LEMONaide drips from this car's oil pan. We should have smelled trouble when we had to have the gaskets replaced two years ago. Now look at her, one sorry hunk of metal that we're still paying off!! 5,862 reminders to go under this car's memory fades into that big LEMONaide stand in heaven.

Details: Car started ... starting funny, slow to get into gear. Had to put it into reverse or first gear for the Drive gear would work. Then would freeze while I'm giving her the gas to go, and then WHAMM!!! Car is peeling out like going was a fresh idea.

I was a stop light on Friday, 2-6-09, and attempted to takeoff. It didn't move but 5 ft and was shuttering pretty bad. I backed off the gas and feathered the petal with better results, until it shifted to second gear, which it then shuttered. It did fine at third and 4th gear. The rest of the day was fine. On Saturday, I made it a mile from my house, tried to pull a medium grade hill and the rpms went to 3500 and the gear never changed. The car had a hard time pulling the hill. I turned around and went back home. On Sunday I changed my transmission filter and fluid, the car has 94,000, this is recommended at 100,000. It drove that afternoon fine, I put it through some hills and fast starts and it performed. On the way to work this morning, it slipped on a hill, revved to 3000 rpms and then shifted, clunked hard on a downshift, and then on the interstate, I was going 70-75, but it would not drop below 3000-3200 rpms. I guess it didn't want to shift to overdrive. Very frustrated about what it could be doing. I am in the process of talking to different mechanics and transmission shops.

I had a 94 Chevy S10 Blazer for a year and then the transmission slipped in the beginning of December 2008. So instead of paying for a rebuilt transmission I went out and bought a 2003 Chevy Impala with about only 9300 miles. I test drove it a couple times and also had my mechanic look at it before I bought it. It was all good. It's been about a month now and I recently noticed that every time I accelerate it jerks when changing gears and it gets worse every couple days. I took it in to a couple transmission shops and they all told me that there was an internal leak so they would need to remove the transmission(Approximately $350) and take it apart to look at it but if they cannot fix the problem they wont be able to put it back together in working condition. So I tell them to do it and a day later they call an tell me I need a rebuilt transmission. Now I am in the same situation as I was about a month ago except now I am paying a monthly payment of $200 a month for this POS(piece of sh-t) to sit in my driveway. DO NOT BUY THIS CAR!

Well I bought my 2003 Impala off my parents because they wanted a newer car being that this Impala had 100K on it. So we bought the car and being a maintenance man I did all of the maintenance procedures for 100K. New plugs and wires, I am going to change the fuel filter and I did change the transmission fluid and filter myself. Well after doing the fluid and filter change the transmission has decided to start slipping. Not just on a green light with moderate gas, it is slipping into every forward gear! My dad changed the trans fluid and filter at 50K as the maintenance book says and I guess had no problems. Well we did get to drive it for a few months and it drives like a dream. Well it did until I followed the book and changed the trans fluid and filter.

I had a 2000 Saturn with a 2.4L engine and the trans would slip horribly into reverse and 2nd gear. We eventually had a trans put in the car and that fixed the problem for a cool $2,000. So I just might be looking to sell my Impala before it becomes a more noticeable problem.

ANSWER TO THE PROBLEM. NEVER CHANGE THE TRANSMISSION FLUID ON A GM CAR!!!!!!!!!!