just got an 06 cobalt. my check engine light came on, took it to advance auto parts to see whats wrong with it, they told me it was a knock sensor. than that same day the check engine light went off and hasnt been on since. should i still take it to a garage to get checked out? or was something maybe just knocked loose while driving that its fine now? how serious of a problem is a knock sensor?

Asked by Feb 28, 2013 at 02:32 AM about the 2006 Chevrolet Cobalt

Question type: Maintenance & Repair

2 Answers

96,085

A knock sensor retards the timing when the engine is knocking. Even if you can not hear the knocks, they are doing damage to the engine. The sensor may be on it's way out or perhaps it was a loose connector. I would clean and coat the electrical connector with dielectric grease.

475

it could be your gas cap be sure that it is tight or replace with another if that happens again and drive 50 to 100 miles and the light should go off

Your Answer

Add photo

Related Questions

  • 06 Cobalt Rough Idle/Stall when stopping or quick deceleration 52 answers

    Hello All, Here is the problem I have. 06 Cobalt LT 2.2l 103065 Miles When decelerating on the freeway to come to a virtual stop for traffic, when stopping at a stop light, when pulling out of the ...

    2006 Chevrolet Cobalt LT

    -

    Maintenance & Repair

  • Why is my 2006 Chevrolet Cobalt stalling so much when I drive it? 39 answers

    Here's the problem I am having: When I stop for a red light, when I stop at a stop sign, when I pull out into the highway or road, when I pull into a parking space it stalls.The RPM goes way,way down ...

    2006 Chevrolet Cobalt LS

    -

    Maintenance & Repair

  • Check Engine Light 13 answers

    I bought a brand new '09 Cobalt. I have 38050 miles on it. In less than a month and a half I have had 6 check engine lights come on. Everytime I've taken it to Chevy service center and they've replace...

    2009 Chevrolet Cobalt LS Coupe

    -

    Maintenance & Repair

  • Has it ever been figured out what is wrong with Chevy Cobalts hard shifting after a ding sound and Power Steering display on dash? 18 answers

    For about 4 years, I've had problems with my '06 Cobalt. I've taken it in to several dealers and shops and they've never been able to figure it out. I'll be driving and I'll hear a ding ding sound...

    Chevrolet Cobalt

    -

    Maintenance & Repair

  • Loud knocking noise 5.3 55 answers

    I have a loud knocking noise coming from the engine . At first I thought it was comin from the top but when i get under it it's alot louder sounds like its comin from the oil pan. I had the transmissi...

    2005 Chevrolet Silverado 1500 Z71 Crew Cab 4WD

    -

    Maintenance & Repair

Search Chevrolet Cobalt Questions

Chevrolet Cobalt Experts

#1 lightGear
lightGear
Reputation 1,100
#2 dandyoun
dandyoun
Reputation 910
#3 munron
munron
Reputation 900
View All

Related Models For Sale

Used Honda Civic
500 Great Deals out of 87,505 listings starting at $1,499
Used Chevrolet Malibu
822 Great Deals out of 81,287 listings starting at $1,500
Used Ford Focus
518 Great Deals out of 55,997 listings starting at $800
Used Chevrolet Impala
515 Great Deals out of 29,024 listings starting at $1,100
Used Ford Mustang
371 Great Deals out of 46,777 listings starting at $1,500
Used Honda Accord
723 Great Deals out of 86,827 listings starting at $699
Used Toyota Corolla
671 Great Deals out of 71,615 listings starting at $600
Used Nissan Altima
848 Great Deals out of 78,680 listings starting at $1,677
Used Honda Civic Coupe
141 Great Deals out of 17,454 listings starting at $1,500
Used Toyota Camry
798 Great Deals out of 89,372 listings starting at $249
Used Dodge Charger
294 Great Deals out of 26,784 listings starting at $2,250
Used Mazda MAZDA3
205 Great Deals out of 30,284 listings starting at $1,495

Used Cars For Sale

2010 Chevrolet Cobalt For Sale
14 Great Deals out of 755 listings starting at $1,698
2009 Chevrolet Cobalt For Sale
15 Great Deals out of 658 listings starting at $1,998
2008 Chevrolet Cobalt For Sale
8 Great Deals out of 688 listings starting at $1,900
2007 Chevrolet Cobalt For Sale
3 Great Deals out of 706 listings starting at $2,695
2006 Chevrolet Cobalt For Sale
6 Great Deals out of 723 listings starting at $1,999