Question about 2005 Chevrolet Impala

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I have a 2005 Impala with 70,000 miles and I notice that the tranny is slipping every so often, not all the time though.I have checked the fluid and it does not need any. Does this mean I will have to spend a ton of $$ to replace it or is there something else I can try first

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To me it sounds like a transmission solenoid(s).The solenoid(s) can be replaced by a transmission shop.I just had mine done and it was $1100.

Posted on Jun 14, 2011

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What would cause my transmission to slip from a stop on my 2005 impala

If the transmission is full of fluid. please go here to read the problems with the pressure control module--, Hope this helps, chevy impala pcm may cause erratic shifting.

Jul 21, 2014 | 2005 Chevrolet Impala LS

1 Answer

Tranny slips until warms up then fine after that

Check for low trans fluid. I would consider changing the trans fluid, using a synthetic trans fluid, if you have more than 70,000 miles on the fluid.

Apr 17, 2014 | 2002 Oldsmobile Alero

1 Answer

2005 chevy impala.. transmission slipping or something. this car has about 193,000 miles on it.. im wondering why its slipping (transmission) and if its even worth fixing...???

First, verify the transmission fluid level is correct - look in the Owner's Manual for info. 2nd get a transmission fluid replacement - do NOT do a 'chemical flush' it could make it even worse....just have them drain out ALL the old fluid and put in new fluid. Shouldn't cost more than $100. If you have any Check Engine Lights or other unusual lights on, get those checked out, too.

Per car is worth about $2500 if you sell it yourself; dealer might give your $1500 but only $500 w/a bad transmission. A rebuilt transmission would likely cost $ NOT fix it. 193K miles is a lot on any car especially an Impala. Time a for another car.


Mar 14, 2014 | Cars & Trucks

1 Answer

2005 impala shelf to drive but wont go forward

If your fluid level is up to par then it could be your tranny or converter or both. Check the tranny fluid, if it's real dark colored and smells burnt then it's probably the tranny or it could be if your lucky it could be the shifter rod that changes the gear needs adjusted.

Sep 02, 2013 | 2005 Chevrolet Impala

1 Answer

2002 mirage tranny delays shifting does not slip.Tranny fluid is full.Has 150,000 miles on it.

Hi there,

Mitsi transmissions are programmed for smooth gear changing and a brief delay is normal.

However, if the duration of the delay exceeds 2secs, then there is an internal problem with the transmission.

You need to run the diagnostics on your vehicle (the PCM controls both Engine + Trans electronics) which will determine where the fault is ocurring.

Most likely causes can be:

- Abnormal underdrive clutch pressure
- Malfunction of the underdrive solenoid valve
- Malfunction of the inderdrive clutch
- Malfunction of the valve body (which houses all the valves & soleniods etc)
- Malfunction of the idle position switch

Your Mitsubishi dealership can use their MUT-II scan tool query the solenoid.

Fluid - condition of fluid is critical for acceptable operation:

1) ONLY USE MITSUBISHI ATF FLUID - never use other brands.
2) Check fluid colour - must be nice RED colour. If black, then fluid is bad - change fluid.
3) If fluid smells burnt, then fluid should be replaced (burning smell can be a sign of internal damage).
4) Fluid level should be checked while trans is warm & idling in Park.
5) NEVER overfill the trans - overfilling can cause the excess fluid to foam, causing shifting problems.
6) Although manufacturer recommends changing fluid every 70,000 miles, it is always safer to maintain clean fluid by changing every 30,000 miles.


"If this has helped you in any way, please rate this solution or kindly leave me a testimonial"

May 12, 2011 | 2002 Mitsubishi Mirage

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My 04 impala slams or shifts hard when i start out from a complete stop or if im slightly rolling??? I just bought the car and it has 93,000 on it. According to the carfax the tranny was flushed at 70,000....

On every automatic transmission. you have whats called a tourque converter. If a flush and tranny fluid fill did not work before its not gonna work again. Your tourqe conver has gone bad or for some odd reason become detatched from the transmission housing. One thing that i know with all my experience you should never have your transmission flushed, especially more than once. Replacing your fluid is one thing but a tranny flush is just one thing auto manufactures should have never come up with. Also Check to see where the flush was done at. If it was done at a Jiffy lube, i doubt it was even done. BIG SCAM WITH JIFFY LUBE AND THERE TRANNY FLUSH SERVICE (check youtube for news reports). Now expect to pay a pretty penny for this becuase you have an automatic transmission. Normally on a manual, it would be your throwout bearing, but becuase the impala was never released with a manual tranny at least in that generation, your kinda stuck with taking it to a service shop. GO TO A GM SHOP. and ask them to fill the tranny with a special tranny fluit called DEXRON VI ONLY. Dexron is the only fluids that meets GM's standards.

Oct 04, 2010 | 2004 Chevrolet Impala

2 Answers


no but a low fluid level could cause a slip telling the ecm there is a slip top it off then clear the code and drive a few miles if this code comes back i would say there is internal damage to the tranny

May 05, 2010 | 1997 Buick Century

1 Answer

Replaced the trans filter about a week ago. 100K

sticky valve in the trany... they have a conditioner for this problem./ pour it in and in 2 days u should notice a difference make sure you get tranny conditioner.. nothig else

Jul 07, 2009 | 2005 Pontiac Grand Prix

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