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.

6 Answers

625

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 out of 1 people think this is 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.

625

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

5

Okay! Thanks!!

625

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

Your Answer

Add photo

Related Questions

  • 2002 Chevy Impala won't start. How can this be fixed at a low cost? 2 answers

    First trip to Chevy dealership garage: BODY CONTROL MODULE was replace for over $400.00. Car ran for a week, now won't start. On 2nd trip to Chevy garage: mechanic says COOLING FANS need replacing. P...

    2002 Chevrolet Impala Base

    -

    Maintenance & Repair

  • 2002 Chevy Impala 3.8 overheating 13 answers

    Hi everyone, I have a 2002 Chevy Impala 3.8 overheating when stops at the light. I replaced the radiator May 2016, and i just replaced the Fan last week. After replacing the Fan I noticed one Fan wa...

    2002 Chevrolet Impala LS

    -

    Maintenance & Repair

  • Chevy Impala shuts off 1 answer

    I have a 02' impala that shuts off while idling and coming to a stop. The steering wheel and the breaks lock up on me. I don't know what could be wrong. I can't afford a car note on a new car

    2002 Chevrolet Impala Base

    -

    Maintenance & Repair

  • 2002 chevy impala overheating. 22 answers

    Radiator fan assembly making noises. Replaced it after check engine light came on. Light came on again after replacement checked and replied fan #1. But both are working. Reset light and is still ...

    2002 Chevrolet Impala Base

    -

    Maintenance & Repair

  • my 2003 impala idle goes up and down. 1 answer

    Car's origional problem was stalling at stop light,idle was kinda low .I cleaned intake with carb cleaner replaced air filter,and idle control sensor.The idle ,I feel is on low side- but- there's...

    2003 Chevrolet Impala Base

    -

    Maintenance & Repair

Impala

Looking for a Used Impala in your area?

CarGurus has 34,401 nationwide Impala listings starting at $799.

ZIP:

Search Chevrolet Impala Questions

Chevrolet Impala Experts

#1 Js08016
Js08016
Reputation 1,670
#2 Danny Wang
Danny Wang
Reputation 1,640
#3 Tom Demyan
Tom Demyan
Reputation 1,450
View All

Related Models For Sale

Used Chevrolet Malibu
1,006 Great Deals out of 85,681 listings starting at $1,995
Used Chevrolet Camaro
279 Great Deals out of 38,301 listings starting at $1,250
Used Honda Accord
814 Great Deals out of 81,613 listings starting at $899
Used Nissan Maxima
343 Great Deals out of 25,222 listings starting at $1,400
Used Nissan Altima
1,075 Great Deals out of 82,559 listings starting at $670
Used Chevrolet Tahoe
775 Great Deals out of 28,451 listings starting at $1,500
Used Ford Mustang
363 Great Deals out of 44,490 listings starting at $1,000
Used Chevrolet Silverado 1500
2,284 Great Deals out of 155,168 listings starting at $1,395
Used Toyota Camry
1,094 Great Deals out of 96,265 listings starting at $1,250
Used Ford Taurus
254 Great Deals out of 20,509 listings starting at $1,500

Used Cars For Sale

2017 Chevrolet Impala LS For Sale
1,174 listings starting at $19,750
2016 Chevrolet Impala LS For Sale
20 Great Deals out of 1,073 listings starting at $14,566
2015 Chevrolet Impala LS For Sale
9 Great Deals out of 417 listings starting at $11,795
2014 Chevrolet Impala LS For Sale
14 Great Deals out of 398 listings starting at $10,991
2013 Chevrolet Impala LS For Sale
3 Great Deals out of 47 listings starting at $5,900