There is a slight but audible knock coming from the engine when it is idleling!? I just picked up the car yesterday ... concerned it maybe something serious that is just beggining to developpe

Asked by Aug 31, 2007 at 06:17 PM about the 2006 Chevrolet Impala LT

Question type: Maintenance & Repair

very low knocking noise ... heard when idleling.  When I open the hood ... you hear what I would call a "clicking" noise.

1 Answer

47,745

Could be as simple as a valve lifter that is sticking, a slight exhaust leak, or possibly a bearing in one of the engine accessory pulleys like alternator beginning to go out. You don't mention where it is coming from specifically, left or right of engine, etc. Then again, it may be nothing, could just be normal sound of fuel injectors chattering.

Your Answer

Chevrolet Impala Experts

  • #1
    Js08016
    Reputation
    2,350
  • #2
    Tom Demyan
    Reputation
    2,150
  • #3
    Rowefast
    Reputation
    1,940
View All

Related Models For Sale

Used Chevrolet Malibu
461 Great Deals out of 50,170 listings starting at $2,111
Used Dodge Charger
250 Great Deals out of 32,949 listings starting at $2,000
Used Honda Accord
449 Great Deals out of 102,533 listings starting at $800
Used Nissan Maxima
207 Great Deals out of 17,149 listings starting at $1,900
Used Chrysler 300
318 Great Deals out of 19,435 listings starting at $1,500
Used Toyota Camry
768 Great Deals out of 71,356 listings starting at $1,200
Used Buick LaCrosse
212 Great Deals out of 11,864 listings starting at $1,500
Used Nissan Altima
714 Great Deals out of 69,652 listings starting at $950
Used Ford Fusion
564 Great Deals out of 61,051 listings starting at $800
Used Chevrolet Silverado 1500
1,807 Great Deals out of 149,640 listings starting at $444
Used Ford Mustang
256 Great Deals out of 36,838 listings starting at $2,500
Used Chevrolet Tahoe
551 Great Deals out of 36,694 listings starting at $1,299
Used Ford Taurus
177 Great Deals out of 15,832 listings starting at $981

Used Cars For Sale

2018 Chevrolet Impala LT For Sale
4,456 listings starting at $23,283
2017 Chevrolet Impala LT For Sale
58 Great Deals out of 2,708 listings starting at $13,491
2016 Chevrolet Impala LT For Sale
5 Great Deals out of 145 listings starting at $13,995
2015 Chevrolet Impala LT For Sale
6 Great Deals out of 257 listings starting at $11,484
2014 Chevrolet Impala LT For Sale
9 Great Deals out of 274 listings starting at $9,649

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.