Car running hot

A few things? Apparently not what was needed. Provide more information please.

New to this site, but thanks for responding.I have a 95 Caprice Classic 4.3 V8 I put a new thermostat on, I also put a new reservoir cap on and coolant it's still running hot. Don't know what to check next.

start with cleaning the colling system ; drain all liquid , fill withh distiled water together with 1/2 kilo = 1lbs of sodacrystals .. run car for a daay or two , drain the dirty cooling liquid , dothis untill clean clean . if lot's of dirt came out , maybe problem is solved . if not check for return of the inside heatertune if it is going in the 'cold ' side of the radiator then you have one of GM's hotrunners .. change the outlay by moving over the hot return into the hot side of the radiator; by means of a Tpiece insert and block of the wrong 'cold' side entree of the rad .. this is typical for 91/92/93 Caprice Chevy's

My 1989 Caprice Brougham LS I change the water pump thermostat and put another radiator also what the temperature still goes up once I get up to 70 or 80 or over 30miles out

see my answer above and do it all .. ckean system with soda crystals . put lower termostat in ( i am running 76Celsius termostat ) and change the returntube from the inside heater to the hotside of the radiator .this is a common fault on these cars It was modified in 94 with ne'w modified radiators .

Caprice 94 to 96 cash in coolant Stupid system And with the air conditioner running in a fan Its engine is very excellent but its problem Thank God General Motors has been remedied in its next cars I suffered with this car One of the things I noticed