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getting a problem with my 2006 cs3 lancer 4515 engine. While driving the gauge remains normal but when parked the gauge goes up when i rev the engine the gauge starts to fall immediately. First i Changed the radiator still had the problem, then changed the fans no improvement, lastly a mechanic told me the head gasket was blown (No signs indicating a blown head gasket) but i changed it anyway now i still having this problem some help needed please.......

Have you noticed your lights brightening or dimming?

no brightning or dimming of lights or and i removed the thermostat after too

Sounds lke the engine block clogged with debri from old radiator.
Did you install a new radiator or foreign used?
Over heating can be caused if the cores in the fins are dirty/clogged.
Is the radiator fan coming on at intervals?
Are you loosing coolant?
Thermostat/thermostat sensor could be another issue.
bad water pump or impeller. pray is not that.

installed a brand new radiator fans coming on at intervals losing no coolant at all

changed the coolant sensor also

check for coolant leaks below engine block/driver side, listen for any grinding noise.
revving car at standstill to cause the temp to drop sayign your impellor or waterpump is not working as it should.
I could be wrong but you have exhausted alot on the list already.
when was last time you changed timing belt and waterpump?

Start with the rad cap off to see if the coolant/water standing our seemingly flowing.

i changed radiator cover also when i open the radiator cover i see the water moving like it circulating no leaks at all not losing any fluid

Fan controller messing up

nope not that either , went by foreign used place and jacked in another one still got the same problem

Lol u used an old unit and making a comparison. When driving the fan won't need to generate as much air as air would be cooling the rad. When stand still u won't be getting air flow so fan would need to step in. Hence when u rev standing still water flows and will circulate quicker and you would see a diff. Target fan or controller presuming rad and engine are clean and the coolant temp sensor was replaced with a new one.

the ting is i tried one from a padner lancer before to see if the fan controller was the problem but it wasnt.(so thats two fan controller i tried ) i also put in another fan yesterday to see if 2 fans will cool it better but temperature still rising.....

It's ur water pump bro
I went tru dis same exact thing yesterday.

When u fill ur radiator drive around a bit u would c the water pump eventually start to drip

solved was a grounding problem, grounded back from battery to chassis ,and battery to engine and cleaned up all other grounds working perfectly now thanks anyway for the help tuners

ok guys used the car this morning the gauge starting to go up again........... so still having a problem next mechanic say to change head and block

Soldier is ur water pump

Drippin slowly

jus want to be sure before i do anything again, not losing any coolant or anything, looked thoroughly for any leaks on the engine, the thing is i used the car this morning to come to town parked up and idle for about an hour but the gauge didn't go up so its not happening all the time

ok now start de car again lunch time after about 10 mins the temperature gauge went up to about 3/4 if i keep my foot on the gas to about 1500rpm the gauge goes back to normal in about 5 seconds

Your water pump ....

groundcontrol and gastly369 you were right was really the waterpump i owe u some cold ones for that just say the time and place, this was the condition of the waterpump.....

same thing i hinted to you dominick, alot of mechanics assume and dont take the time to test.
Since you in there you might as well change timing belt and pulley. not something you want to go and interfere with for a long time.

Where are the other impellers?

to tell u the truth i dont know if i broke off or corroded off or something

Not good either way.

Cost mi nuttin to help a fellow bro tuner

thanks again bro

how much did you pay for the water pump? And where did you get it?