what engine do you have?did it get hot before you done the work?tell me all you can
be sure the radiator cap is good...but the radiator may be clocgged up,sometimes flushing it will do the trick,but you may need a new one
please ACCEPT my answer so I can get credit for my work.i don't receive commission unless you do ..i'm not always going to be giving you good news,so please dont let this stand in the way of you accepting my answer.it does not cost you more money.we will still be able to communicate.. Bonuses and positive feedback are appreciated!if you are not satisfied with my answer,please do not leave bad feed back,i will gladly opt out and let another expert handle the question.PLEASE ASK IF YOU NEED MORE HELP
Bulletin No.: 00-06-02-001
File In Section: 06 Engine/Propulsion System
Date: January, 2000
Some customers may comment on one or more of the following conditions:
The radiator filler neck may have an imperfection in the sealing surface.
Using a piece of 400 grit wet/dry sandpaper backed with a flat piece of wood, polish the filler neck sealing surface using a circular motion.
Replace the radiator pressure cap with a cap of the same part number as shown in the GM Service Parts Catalog.
For vehicles repaired under warranty, use:
i will opt out..mabe another one of the guys has an idea
my 2000 1500 silverado keeps overheating after replacing, thermostat,and fan clutch,and cleaned out radiator. I've olso replaced Engine gaskets.Truck only overheats when the truck is on netrual or at a stop, once I get going the tempeture goes back down. Other mechanics say the water pump is good because it's not leaking and there's a flow in the water resevore. Radiator cap is new. One more thing when the truck is overheating the airconditioner stops blowing cool air. This is going on when the tempeture on the truck is rising or starting to overheat.
Before there was any work done to it at all and the truck over heated it lost the water thru the water resevore tank or hose.