Engine Heating Issue

[JamieC84]

I have an issue with my VL engine...my engine is heating up and discovered the thermo fan was not quite working so i changed the fan. I then changed the radiator cap but the temp came up high again. Can someone give me some idea on where i should be looking for the issue.

 

[87RB30VL]

When is it getting hot? Like, at low speeds, high speeds, when idling at lights/in one spot? Do you have coolant or do you have water in it? Have you replaced your Thermostat or has it been done lately? On your temp gauge (the stock one), where does it sit when it's getting hot? Also, has the cooling system been flushed or run out or radiator removed etc recently & not been bled?

My VLT runs at about 70 - 80 degrees celcius (which is around the 2nd-3rd thin line on the stock gauge) depending on how hard I'm driving, and how hot it is outside.

Let us know what white line yours settles at when it's running hot, sorry for the crap pic, I'm at work & had to google someone elses dash just to give an example of the temp gauge lines:

 

[VR38]

Checked the Thermoatat?

 

[detox_nath83]

They don't have a thermal fan as such. It's just a clutched engine fan. Unless it been swapped out like I have done.
There is a booster fan in front of the rad for the aircon booster and won't run to cool the engine.
Check thermostat and the rad could be blocked to some degree try back flowing it

 

[harry3]

the main fan has a temperature sensitive clutch and this can eventually fail, some skill is needed to diagnose this, happened to me, I fitted a replacement clutch and all OK, sometimes leaking silicone is visible

 

[detox_nath83]

Correct the oil/fluid inside the clutched fan thickens when it gets hotter thus engaging fan drive ( much how a stally works with the vanes) u can usually check by spinning it manually when the car is off there should be some resistance apposed to free spinning. Best bet change the clutched piece. And see. Easy quick job