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

17,820

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 1,970
#2 T_S_T
T_S_T
Reputation 1,720
#3 Tom Demyan
Tom Demyan
Reputation 1,320
View All

Related Models For Sale

Used Chevrolet Impala
588 Great Deals out of 29,008 listings starting at $1,300
Used Honda Accord
718 Great Deals out of 83,067 listings starting at $500
Used Ford Fusion
985 Great Deals out of 79,660 listings starting at $1,000
Used Nissan Altima
837 Great Deals out of 78,324 listings starting at $470
Used Toyota Camry
875 Great Deals out of 92,512 listings starting at $1,300
Used Dodge Charger
228 Great Deals out of 27,473 listings starting at $1,997
Used Kia Optima
391 Great Deals out of 30,120 listings starting at $1,700
Used Nissan Maxima
270 Great Deals out of 26,140 listings starting at $2,545
Used Hyundai Sonata
532 Great Deals out of 50,273 listings starting at $1,300
Used Honda Civic
509 Great Deals out of 81,680 listings starting at $558
Used Chevrolet Equinox
1,004 Great Deals out of 61,631 listings starting at $1,600
Used Chrysler 300
343 Great Deals out of 20,692 listings starting at $1,000

Used Cars For Sale

2017 Chevrolet Malibu LS For Sale
16,954 listings starting at $13,770
2016 Chevrolet Malibu LS For Sale
66 Great Deals out of 1,831 listings starting at $13,999
2015 Chevrolet Malibu LS For Sale
14 Great Deals out of 726 listings starting at $9,799
2014 Chevrolet Malibu LS For Sale
21 Great Deals out of 1,034 listings starting at $8,500
2013 Chevrolet Malibu LS For Sale
16 Great Deals out of 670 listings starting at $7,950