High rpms

Asked by Mar 18, 2017 at 02:13 AM about the 2005 Chevrolet Impala Base

Question type: Maintenance & Repair

I replaced the thermostat in my impala, and now
the rpms are running way too high. It's going about
50 mph and I'm barely pressing on the gas pedal.
Normally I have to press a little bit to get up to that
speed from a dead stop. Any advice or ideas?

3 Answers


See if a vacuum line came off or cracked and is leaking. Vacuum leaks cause high Idle.

1 of 1 people found this helpful.

I'll check that tomorrow. I didn't even think of that.


Just look around in the area you were working. Something may be disconnected. I agree with enginecreator on this.

1 of 1 people found this helpful.

Your Answer


Looking for a Used Impala in your area?

CarGurus has 1,097 nationwide Impala listings starting at $2,488.

Postal Code:

Chevrolet Impala Experts

  • #1
  • #2
    Tom Demyan
  • #3
View All

Related Models For Sale

Used Chevrolet Malibu
69 Great Deals out of 1,828 listings starting at $2,495
Used Dodge Charger
58 Great Deals out of 783 listings starting at $3,900
Used Honda Accord
54 Great Deals out of 1,245 listings starting at $1,350
Used Nissan Maxima
16 Great Deals out of 406 listings starting at $3,795
Used Chrysler 300
71 Great Deals out of 839 listings starting at $3,295
Used Toyota Camry
34 Great Deals out of 1,926 listings starting at $1,950
Used Nissan Altima
73 Great Deals out of 1,238 listings starting at $1,900
Used Buick LaCrosse
11 Great Deals out of 336 listings starting at $5,950
Used Ford Fusion
113 Great Deals out of 1,675 listings starting at $1,495
Used Chevrolet Tahoe
3 Great Deals out of 913 listings starting at $9,871
Used Chevrolet Silverado 1500
146 Great Deals out of 12,269 listings starting at $1,895
Used Ford Mustang
1,039 listings starting at $3,900
Used Ford Taurus
39 Great Deals out of 330 listings starting at $5,555

Used Cars For Sale

2018 Chevrolet Impala For Sale
9 Great Deals out of 314 listings starting at $31,500
2017 Chevrolet Impala For Sale
101 Great Deals out of 320 listings starting at $18,750
2016 Chevrolet Impala For Sale
4 Great Deals out of 38 listings starting at $16,995
2015 Chevrolet Impala For Sale
53 listings starting at $13,995
2014 Chevrolet Impala For Sale
11 Great Deals out of 65 listings starting at $11,900

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.