My car keeps shutting off when idle..


Asked by Feb 15, 2013 at 05:44 PM about the 2002 Chevrolet Impala

Question type: Maintenance & Repair

I just had my mom mechanic replace it
with a used tranmission, im assuming..
and afterwards its been shutting off..
whenever im on breaks or, it stutters
for then cranks right back up.. I just
had my oil change because I thought
that was the problem  sense it was
past due..  Any suggestions?? It didnt
start doing this until he replaced my
transmission... where is my fuel pump/
filter located btw...

20 Answers


Excuse my errors..on cellphone..

13 people found this helpful.

Fuel pump and filter are inside the gas tank. And no, even if overdue, oil change has nothing to do with it far as the rest of your question, the stalling, hopefully somebody will come by to help you on that. Without the car I have no clue

4 people found this helpful.

Its a 2002 chevy impala

2 people found this helpful.

there is a link that goes from the throttle to the kickdown on the transmission. perhaps this was adjusted a little loose?....or tight, depends on your geometry there.

7 people found this helpful.

Idle air control sensor. carbon build causes this problem

20 people found this helpful.

Maybe the mechanic left a vacuum line of the transmission .

3 people found this helpful.

hi im a mechanics student have you checked your coolant temp sensor? that can cause most of the symptoms youve decribed

16 people found this helpful.

I just love everything impala but I'm in a predicament now with my two...I bought two with my skool is a 2001 Base it came with bad transmission but I put a lot of fluid and Lucas it worked for 3months but eventually jus stopped after 5min of driving...

6 people found this helpful.

The second is an 05ls but recently it jus started shaking violently wen I try to start it and jus dies.....on the highway it said hot coolant...doesn't let me go certain

3 people found this helpful.

fergie is right on this answer ,, even though you had the trans work done its probably not even related it sound to me to be a dirty throttle body . this is common in all cars now days , so when your comeing to a stop it wants to die , and sometimes it take time to restart unless you have your foot on the throttle , and if you turn the air conditioner its even worse , What you do is take some carb cleaner or even brake cleaner get a rag get it wet with the chemical while car is off open the throttle plate and clean all the black stuff off. then spray the throttle plates off with a little more cleaner and then restart vehicle, Note : it will be hard to start but just hold pedal down to get it started as if it is flooded and dont rev it high to damage anything , try this its only 9 dollars to fix the problem for the cleaner.

17 people found this helpful.

my 2003 impala is doing the same only my car will die while driving 35 mph. so far we have replaced, cam sensor, crank shaft sensor, mass air flow and last week it was the main ignition module - all new parts. the car was better for a few days then boom It started all over again only this time it stalls out more often. so far the cost has been over $600 in parts & labor. back to the drawing board.

19 people found this helpful.

I also have a 1998 Nissan maxima and does the same the RPM goes up and down and then it dies but turns on right away, All this started when I had my transmission changed, could this be a trans problem? they told me it was the ignition coils $100 each and that did not fix anything

2 people found this helpful.

@JOHNBench My 2008 Kia Rio is doing the exact same thing. Did you ever figure out what it was?

2 people found this helpful.

I have a 2002 Chevy impala and only when I come to a stop it shakes. Nothing else really wrong just the shaking and check engine light on. Idk what the problem is and just had a tune up and engine/transmission worked on. Help please

5 people found this helpful.


3 people found this helpful.

replace the fuel relay if this only happens once in a while

3 people found this helpful.

I advice everyone to to contact corporate office regarding the car issue. With the issue of everything you've replace on your car an when u take you place your foot on the break petal your car cuts off. For me its a safety issue because i have kids. An almost got hit an couldn't turn the wheel an cut on my emergency lights. Without the help of the knowledge an letting corporate know the issue they cant issue a recall.

3 people found this helpful.

I have the same problem with my Astro Van. I changed the fuel filter and spark plugs and still doing the same.


Have the battery checked. My 04 impala was stalling out when I would take my foot of the gas at any speed. Had the battery and alternator checked the battery was bad. Had the same problem 3 1-2 years ago too that's how I knew what it was this time

2 people found this helpful.

Hey guys I have three impalas clean out your throttle body with throttle body cleaner use a wire brush, and a towel, change tps and idle control valve they are clogged with carbon. And change your octane to take at 89.

2 people found this helpful.

Your Answer:


Looking for a Used Impala in your area?

CarGurus has 22,529 nationwide Impala listings starting at $700.


Chevrolet Impala Experts

  • #1
  • #2
  • #3
View All

Find great deals from top-rated dealersTM


Related Models For Sale

Used Chevrolet Malibu
965 Great Deals out of 37,240 listings starting at $803
Used Honda Accord
1,080 Great Deals out of 70,508 listings starting at $1,100
Used Toyota Camry
1,289 Great Deals out of 72,728 listings starting at $1,700
Used Chevrolet Camaro
770 Great Deals out of 22,982 listings starting at $2,100
Used Nissan Maxima
397 Great Deals out of 14,421 listings starting at $1,500
Used Chevrolet Silverado 1500
3,660 Great Deals out of 159,122 listings starting at $700
Used Nissan Altima
1,571 Great Deals out of 71,952 listings starting at $250
Used Chevrolet Tahoe
997 Great Deals out of 32,082 listings starting at $1,950
Used Ford Taurus
277 Great Deals out of 7,964 listings starting at $2,350

Used Cars for Sale

2019 Chevrolet Impala For Sale
124 Great Deals out of 7,081 listings starting at $14,140
2018 Chevrolet Impala For Sale
103 Great Deals out of 2,879 listings starting at $11,991
2017 Chevrolet Impala For Sale
39 Great Deals out of 1,146 listings starting at $9,900
2016 Chevrolet Impala For Sale
56 Great Deals out of 945 listings starting at $8,685
2015 Chevrolet Impala For Sale
48 Great Deals out of 1,003 listings starting at $5,990

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.