somebody help!

[scottharvey 60]

Today out of randomness when i was in the kfc drive thru waiting my cars temperature gauge went up alot almost to red if i was waiting 2 mins more it would of fried.

So i pulled over turned it off and checked my oil and water and they were both fine.

I let it cool down after starting it again and i noticed my fan is going quite slow on idle but as car then moves or the revs get put up to about 1500rpm the temp gauge goes down again.

Any reason for this need some help??

[Ahmedsinc 414]

Sounds like your water pump might have started failing

[scottharvey 60]

mate said waterpump should be alright if the car cools when it gets revved

[Silver Fox 43]

Most likely need a new viscous hub on the fan.

[_ethrty-Andy_ 2122]

Today out of randomness when i was in the kfc drive thru waiting my cars temperature gauge went up alot almost to red if i was waiting 2 mins more it would of fried.

So i pulled over turned it off and checked my oil and water and they were both fine.

I let it cool down after starting it again and i noticed my fan is going quite slow on idle but as car then moves or the revs get put up to about 1500rpm the temp gauge goes down again.

Any reason for this need some help??

the bold part does sound normal, its loose while the engine is col to allow the engine to heat up, but when the car is warm it should be very stiff/damn near impossible to move (when engine is just turned off)

does sound like the viscous hub though. will be this or the water pump.

Edited September 22, 2012 by _Ethrty-Andy_

[BM WORLD 1264]

viscous fan clutch

[scottharvey 60]

viscous fan clutch

Have you got one brent?? And maybe you could have a look to see if the fan is running slow or normal i wouldnt know as i just noticed it?

[scottharvey 60]

the bold part does sound normal, its loose while the engine is col to allow the engine to heat up, but when the car is warm it should be very stiff/damn near impossible to move (when engine is just turned off)

does sound like the viscous hub though. will be this or the water pump.

is it a big job changing the viscious hub?

[BM WORLD 1264]

Have you got one brent?? And maybe you could have a look to see if the fan is running slow or normal i wouldnt know as i just noticed it?

yes and yes

just call me

[_ethrty-Andy_ 2122]

is it a big job changing the viscious hub?

its simple, but easy might not be the right word. Its reverse threaded (so righty-loosey lefty-tighty) and a large spanner size i think 32mm. can be a real PITA to crack from the water pump. May like to take the fan itself off the hub too, i dont usually bother though

[scottharvey 60]

i was thinking about just removing the thermostat and just running the car cold is that good or a bad idea?

[*Glenn* 854]

i was thinking about just removing the thermostat and just running the car cold is that good or a bad idea?

Bad idea

[Allanw 1051]

Bad idea

+1... Very!

[antil33t 90]

Here's how you test the fan, Don't blame me if you lose your fingers.