You need to make sure your putting it in the correct way just because you put it in the same way it came out don't mean it's right it could have been put in wrong before
Check right way fitted n, and not upside down...flush the main radiator...also...and the engine block and heater system...whislt ya at it...you can buy rad flush...liquids you put in the rad system then run the enigne...
But sometimes the block and rad can get quite heavy blocked...this reqiures more extensive time consuming work too clear...
Does the engine...dash instument gauge...show...working? does it show the needle at half way?
Is your car a old car?...oh it s 1 1999...it will have a modern...electric fan on then...
Check for air trapped at the fan on off switch, check the fan conection for pistive volts...with engine gauge at just over half way...usally when the radiator cooling fan shuld cut in/start working...
Shuld see voltage...check the fuse box...rad fan fuse...
Easy stuff first ;)
Coul;d be a bad connection too rad fan...or the fan switch are culrits.
But sometimes the block and rad can get quite heavy blocked...this reqiures more extensive time consuming work too clear...
Is your car a old car?...oh it s 1 1999...it will have a modern...electric fan on then...
Check for air trapped at the fan on off switch, check the fan conection for pistive volts...with engine gauge at just over half way...usally when the radiator cooling fan shuld cut in/start working...
Shuld see voltage...check the fuse box...rad fan fuse...
Easy stuff first ;)
Coul;d be a bad connection too rad fan...or the fan switch are culrits.