My cobalt 2007 makes a knocking noise in the passenger dash when I turn on the car what can this be?

Asked by Jul 12, 2015 at 09:33 PM about the 2007 Chevrolet Cobalt LT Sedan FWD

Question type: Maintenance & Repair

Is it serious? Should I drive it? And how
much does this cost

2 Answers


Is that where the hearer coil is? You may have air in the system. Without hearing the noise or if it is doing it before start up or after heat up? Are you sure it is in the dash or under the hood? It may be a belt becoming frayed and part of it is hitting a cover guard. Have the engine checked while the motor is running.

1 of 1 people found this helpful.

Recirculation air flap under glove box, caused by cheap foreign parts that go out. Flapper is shot. Big issue in cobalts

4 of 4 people found this helpful.

Your Answer

Chevrolet Cobalt Experts

  • #1
  • #2
  • #3
View All

Related Models For Sale

Used Chevrolet Malibu
983 Great Deals out of 53,481 listings starting at $1,599
Used Honda Civic
584 Great Deals out of 52,614 listings starting at $999
Used Ford Focus
590 Great Deals out of 69,864 listings starting at $1,950
Used Chevrolet Impala
483 Great Deals out of 31,772 listings starting at $1,000
Used Ford Mustang
342 Great Deals out of 41,799 listings starting at $1,488
Used Honda Accord
790 Great Deals out of 89,573 listings starting at $1,444
Used Toyota Corolla
951 Great Deals out of 70,878 listings starting at $1,479
Used Dodge Charger
318 Great Deals out of 36,009 listings starting at $1,999
Used Toyota Camry
1,115 Great Deals out of 77,076 listings starting at $1,100
Used Nissan Altima
1,135 Great Deals out of 73,809 listings starting at $900
Used Honda Civic Coupe
167 Great Deals out of 10,744 listings starting at $1,800

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.