2002 impala won't idle down

5

Asked by Mar 15, 2016 at 11:14 PM about the 2002 Chevrolet Impala LS

Question type: Maintenance & Repair

When I crank, drive, put it in park, reverse, it won't idle down.
When I drive it is have to keep my foot on the brake so it won't
drive itself and that's scary!!! Please help me, I'm about to give
up.

7 Answers

765

Is your check Engine light on? Does it idle high as well or only in gear? It's more than likely a pretty big vacuum leak or TPS (Throttle Position Sensor), and possible the IAC (Idle Air Control) Valve. If there is no check engine light, have a smoke machine hooked up to the intake somewhere and you should find a vacuum leak.

1 of 1 people found this helpful.
5

Thank you so much!! Will let the mechanics know first thing in the morning.

5

No the check engine light isn't on.

765

Most likely a vacuum leak. Good luck, I hope they can fix your problem:)

5

Okay! Thanks!!

765

I'd be interested to see what your mechanic finds. Keep me posted please.

Mines do the same

Your Answer

Impala

Looking for a Used Impala in your area?

CarGurus has 34,468 nationwide Impala listings starting at $900.

ZIP:

Chevrolet Impala Experts

  • #1
    Js08016
    Reputation
    1,960
  • #2
    Tom Demyan
    Reputation
    1,870
  • #3
    Danny Wang
    Reputation
    1,720
View All

Related Models For Sale

Used Chevrolet Malibu
1,134 Great Deals out of 62,118 listings starting at $880
Used Chevrolet Camaro
454 Great Deals out of 31,411 listings starting at $1,450
Used Honda Accord
1,104 Great Deals out of 73,069 listings starting at $1,100
Used Nissan Maxima
333 Great Deals out of 21,764 listings starting at $1,200
Used Toyota Camry
1,119 Great Deals out of 86,586 listings starting at $800
Used Nissan Altima
1,320 Great Deals out of 77,541 listings starting at $1,695
Used Chevrolet Silverado 1500
2,657 Great Deals out of 173,972 listings starting at $955
Used Chevrolet Tahoe
834 Great Deals out of 41,908 listings starting at $1,987
Used Ford Mustang
600 Great Deals out of 39,164 listings starting at $1,895
Used Ford Taurus
243 Great Deals out of 14,994 listings starting at $1,800

Used Cars For Sale

2018 Chevrolet Impala LS For Sale
1,420 listings starting at $21,585
2017 Chevrolet Impala LS For Sale
19 Great Deals out of 1,265 listings starting at $15,990
2016 Chevrolet Impala LS For Sale
4 Great Deals out of 250 listings starting at $12,950
2015 Chevrolet Impala LS For Sale
3 Great Deals out of 246 listings starting at $10,999
2014 Chevrolet Impala LS For Sale
3 Great Deals out of 301 listings starting at $9,700

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.