Knocking on 03 impala
#1
Knocking on 03 impala
My 03 impala makes a knocking noise when it is cold and goes away when warmed up,i have had people tell me it is the lifters but im not sure.Can anyone help?
#3
RE: Knocking on 03 impala
not sure how prone the impala engines are to this..
but on the inline 6 trailblazers - and some other engines- they get what is called Cold Carbon knock.
cold engine in the morning- the engine knocks a little. once its warmed up- its quiet.
This noise can be quieted for a bit- by running a bottle of chevron techron to get rid of the carbon buildup.
Mine quiets down a bit. not entirely, but it does help.
if you try chevron- and it doesnt quiet down- then at least you cleaned your injectors, and you then proceed to another cause.
but on the inline 6 trailblazers - and some other engines- they get what is called Cold Carbon knock.
cold engine in the morning- the engine knocks a little. once its warmed up- its quiet.
This noise can be quieted for a bit- by running a bottle of chevron techron to get rid of the carbon buildup.
Mine quiets down a bit. not entirely, but it does help.
if you try chevron- and it doesnt quiet down- then at least you cleaned your injectors, and you then proceed to another cause.
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crackerjack8501
Silverado, Sierra & Fullsize Pick-ups
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April 7th, 2021 7:56 AM