Over heaing I have a 2000 chevy impala I don't know what the problem is but when I start the car I have to let it warm up or get hot then I have to keep opening the radiator cap until there is no more antifreaz puring out then I have to fill it back up an push on the hosea till the thermostat opens the I can drive anywhere I want but as soon as the car gets shut off and cools down if I try to start it and go anywhere it will over heat all most seems like the engine gets hot before the coolant in the radiator does.

SOURCE: Thermostat on 2002 Chevy Impala

the best thing to get is the Haynes manual for your car at advanced auto or autozone or somewhere like that and the book will tell you how to take everything apart and put it back. i think the manual is about $16.00

SOURCE: 2005 Impala Leaking Coolant and no heat

Hi lfortunato,

Try the radiator cap, if that doesn't work check your interior heater controls.... as you've already pressure tested, it sounds unlikely to be the pump..... If it was defective it would have leaked with that pressure. The thermostat may also cause the problem, if it's stuck open....

Regards Johngee10

SOURCE: Overheating/No Heat 2001 Impala

change the thermostat and the temp gauge in the radiator

SOURCE: Chevy Trailblazer Engine very loud when starting

it's too early to tell. i,ve never known a light to come on because of a thermostat.you need to see what code was stored. without knowing,im just guessing. but my first thought was a plugged up catalytic converter. that explains the low power,also fuel filter.

SOURCE: 99 chevy blazer overheating

the most common problem is the plastic gaskets under the intake felpro makes a steel/rubber replacment