its best to take it to a gm dealer, the dex-cool antifreeze leaves a lot of gunk make sure to have them flush the entire system.
Engine coolant leaking internally and/or externally.
Intake manifold, near the thermostat housing. Should have two wires.
Dexcool
mine is on the left top corner of the engine yours should also be, but if its not, just look on the left.
The Orange Dexcool
DEX Cool
need to know what engine size and year 3.5L 2006
It is either time for a oil and filter change or the engine is low on oil.
There is no maintenance on the timing chain unless it breaks. No you don't change it.
A diagram for a 2001 Chevy impala 3.4L engine & coil pack firing order
What year, what size engine? 2004-2008 Chevy impala
what engine do you have in your impala?