Why is it continually running hot even after the Thermostat and radiator was changed
What is your question?
It now is running 1 line toward hot and the coolant tank cap steams and coolant can be head Gurgling I just changed the thermostat and radiator yesterday and it’s still acting up also sometimes when u put the heat on it don’t work but yet sometimes it does
What makes this problem better or worse?
If I accelerate to much and get on it it would get hot but yet the other day I drove it and the needle was dead center between cold n hot
How long has your 2001 Cadillac DeVille had this problem?
RepairPal Certified shops can diagnose and repair your 2001 Cadillac DeVille. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
First, make sure the coolant level is completely full and there isn't any air in the cooling system. Did you bleed the system of air after replacing the t-stat and radiator? You MUST bleed the system after performing any cooling system repairs. If you do not, air will be trapped in the system, leading to engine overheating. Air pockets can also prevent the heater from working properly.
If the coolant is full and free of air, you may have an internal coolant leak (i.e., failed head gasket, cracked head, cracked block). Or the water pump may not be operating properly.
To know for certain, however, you'll need to have the vehicle diagnosed firsthand by a professional. You can find a list of recommended repair facilities here: https://repairpal.com/repair-shops
Keep in mind: overheating an engine even once can cause extensive damage. Do not drive the vehicle until you get the problem fixed.
