Piston Slap or Engine Knock?

Asked by Jun 16, 2015 at 01:05 PM about the 2007 Chevrolet Malibu LS

Question type: Maintenance & Repair

I own a 2007 Chevy Malibu LS 2.2L 4 Cylinder Automatic.  When i start the engine
while cold, there's a knocking or slapping noise.  It only happens when it's cold and as
the engine warms up it slowly goes away, i just want to figure out if it's piston slap or if
the noise is being made by something worse like a bad rod or sparks or broken valves.  
Ideas?  (btw i'm 17 so my knowledge is limited) (My car is the one on the left in the
picture)

1 Answer

18,790

I had the same problem with my 07 Nissan Versa it only made a tapping noise in cold weather when it was warm no noise at all. I changed my oil and added Lucas Engine Oil Stablizer and with in 30 - 45 minutes of running the tapping was gone and that's been 6 months ago. Do not no if it would work for you but I think it's worth a try.

Your Answer

Add photo

Related Questions

Search Chevrolet Malibu Questions

Chevrolet Malibu Experts

#1 tenspeed
tenspeed
Reputation 2,020
#2 T_S_T
T_S_T
Reputation 1,930
#3 Tom Demyan
Tom Demyan
Reputation 1,370
View All

Related Models For Sale

Used Chevrolet Impala
590 Great Deals out of 34,066 listings starting at $899
Used Honda Accord
947 Great Deals out of 77,739 listings starting at $899
Used Ford Fusion
1,188 Great Deals out of 79,438 listings starting at $998
Used Nissan Altima
1,153 Great Deals out of 79,677 listings starting at $500
Used Toyota Camry
1,101 Great Deals out of 90,760 listings starting at $1,599
Used Dodge Charger
454 Great Deals out of 29,325 listings starting at $2,300
Used Nissan Maxima
323 Great Deals out of 24,381 listings starting at $999
Used Hyundai Sonata
820 Great Deals out of 46,091 listings starting at $1,000
Used Kia Optima
456 Great Deals out of 29,381 listings starting at $1,795
Used Honda Civic
812 Great Deals out of 88,108 listings starting at $1,299
Used Chevrolet Equinox
1,064 Great Deals out of 78,356 listings starting at $1,999
Used Ford Mustang
543 Great Deals out of 45,845 listings starting at $1,999

Used Cars For Sale

2017 Chevrolet Malibu LS For Sale
14,956 listings starting at $14,971
2016 Chevrolet Malibu LS For Sale
23 Great Deals out of 834 listings starting at $11,029
2015 Chevrolet Malibu LS For Sale
28 Great Deals out of 812 listings starting at $9,890
2014 Chevrolet Malibu LS For Sale
18 Great Deals out of 1,100 listings starting at $8,295
2013 Chevrolet Malibu LS For Sale
18 Great Deals out of 616 listings starting at $7,521

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.