Start with replacing the thermostat.
P0128 says the engine isn't warming up to proper specs. Start with replacing the thermostat.
Start with replacing the thermostat.
it is low coolant temperature, could be the thermostat could be the sensor for coolant temperature.
how do you fix the heat in a 2002 Chevy impala
Well, resetting the P0128 code on your Chevy Trailblazer is like painting a happy little tree. First, you'll want to fix the underlying issue causing the code, like a faulty thermostat or low coolant levels. Once that's taken care of, you can reset the code by disconnecting the battery for a few minutes or using an OBD-II scanner. Just remember, mistakes are just happy accidents in the world of car maintenance.
take it to get fix
Vortec V-6
Reduced engine power is always accompanied by a trouble code. You must get the code diagnosed in order to establish your fix procedure. Get the code read at Autozone or someone that has a OBDII code reader.
My 2002 chevy impala security lock but i can jumpstart it and it start but after a few hours it dose it again how can i fix it
change your o2 sensor
replace cat
Trouble code P1258 means: Engine Metal Over Temperature Protection